...Throughout this assignment the anatomy and physiology of the central nervous will be examined in relation to the affects a stroke may cause. The causes and symptoms will also be identified along with the various affects a stroke may have on an individual such as physical, emotional, and social impact. Finally, the care and treatments provided will be highlighted and will be referenced throughout according to relevant literature and guidelines such as Infection control, Health and Safety, and various government policies. According to the National Stroke Strategy 2007, a stroke is a condition in which the brain cells suddenly die due to a lack of oxygen. A stroke is often caused by an obstruction in the blood flow, or the rupture of an artery that feeds the brain (reference). The two main types of stroke which will be referred to throughout the text are hemorrhagic and Ischemic. National Stroke Strategy (2007) states that ‘an Ischemic stroke accounts for around 87% of all strokes and occurs when a blood clot (thrombus) forms that blocks the blood flow to a certain part of the brain’. When a blood clot forms somewhere in the body and breaks off to become free-floating, it is called an embolus (reference). This wandering clot may then be carried through the bloodstream and to the brain where it can then cause an ischemic stroke. A hemorrhagic stroke occurs when a blood vessel on the brain's surface ruptures and then fills the space between the brain and skull with blood or when...
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...Mink Dissection – Laboratory Guidelines 1. BE PRESENT AND ON TIME!! a. The only good reason for missing lab is DEATH (your own). b. You may be given notes or special instructions during the first few minutes of lab. Make special note of any changes in materials to be used or procedures to be followed. 2. BRING MATERIALS/SUPPLIES. a. Bring your laboratory manual and notebook to class everyday. b. Be sure to put your name on everything (including boxes of gloves, if you brought them). 3. COME PREPARED TO WORK. a. Prepare yourself BEFORE lab by reading the assigned exercise. It is important to have some understanding of what you are to do since the class periods are not very long, and some classes are large. b. Be prepared for a poptest on the material covered the day before or material to be covered each day. 4. CHECK IN. a. Use only equipment that is assigned to you. b. Each day you will assemble the following dissection material: dissection tray and specimen, blunt probe, sharp probe, forceps (tweezers), scissors, and a scalpel. c. BEFORE YOU BEGIN EACH DAY, check to see that all dissection equipment is clean and in place. Report any dirty or misplaced equipment to the instructor immediately. Dirty or misplace equipment will result in a daily grade of zero for the prior users. 5. BE SAFE. a. NEVER eat, drink, or chew gum while dissecting in the laboratory...
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...Summary Week 1 Discussion This discussion we looked at two examples of the heart and its functions. Atrial septal defect (ASD) is fairly common. This was a terrific example to relate structure and function. When the structure of anatomy is disrupted we can see as in this example how normal function is altered. This congenital defect allows blood to flow between atria instead of the normal flow through the ventricles and to the body and the disrupted and limited blood flow can lead to heart failure, stroke and pulmonary hypertension. The larger the hole the more quickly surgery is needed to correct it. Smaller holes may provide enough blood flow to avoid these complications and may heal over on its own. Ventricular septal defect (VSD) is less common. A hole between the ventricles allows mixing of oxygenated blood from the lungs with de-oxygenated blood returning from the body. Heart failure and infections occur rapidly due to the lack of oxygenated blood reaching the body and the baby often presents with a bluish discoloration to the skin as a result of lack of oxygen. Artificial hearts being developed run on batteries to pump the blood and include porting valves to ensure blood flow goes in the correct direction. Essential characteristics of an artificial heart that would make them ideal would be to mimic the real heart in structure and function and resist rejection in the recipient. References Atrial septal defect (ASD). (2014). Retrieved from http://www.heart...
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...Unit 303, Outcome 2, Skin & Hair The skin is the largest organ of the body, with a total area of about 20 square feet. The skin protects us from microbes and the elements, helps regulate body temperature, and permits the sensations of touch, heat, and cold. Skin has three layers: * The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone. * The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands. * The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue. The skin’s colour is created by special cells called melanocytes, which produce the pigment melanin. Melanocytes are located in the epidermis. http://www.webmd.com/skin-problems-and-treatments/picture-of-the-skin Functions of the Skin The main functions of the skin include: * Protection of the human body * Sensation i.e. transmitting to the brain information about surroundings * Temperature regulation * Immunity i.e. the role of the skin within the immune system * Enables movement and growth without injury * Excretion from the body of certain types of waste materials * Endocrine function e.g. re. Vitamin D Function of the Skin | Example(s) | How does the skin perform this function? What is/are the mechanism(s) ? | 1. Protection | Of the body from: * ultraviolet (UV) radiation e.g. sun damage * dehydration * microorganisms e.g. bacterial invasion...
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...Unit 5 Anatomy and physiology Functions of the component of the human cell.( http://www.slideshare.net/kristenaoconnor/cell-organelles) Cell membrane: the cell membrane also known as plasma membrane is the biological membrane that separates the interior cell from the outside environment. It provide support and protection for the cell. It serves as the entrance and exit of the cell. Cytoplasm: cytoplasm is a jelly like material that fill the cell. It contains food and water for the cell. It holds the organelle in place. It is mainly composed of water, salt and proteins. Nucleus : it contains the majority of genetic materials as DNA molecules along with variety of protein to form chromosomes. which makes humans who and what they are. Endoplasmic reticulum: the endoplasmic reticulum serves many functions, it folds protein molecules in sacs cisternae, it transports synthesized proteins in the vesicles to the Golgi apparatus. Golgi apparatus: it is made up of membrane bound sacs .The function of the Golgi apparatus is to process and bundle macromolecules like protein and lipids as they synthesize in the cell. It modifies sorts and package proteins to be secreted. Mitochondria: it is of the referred to as the powerhouse . It breaks down food and release energy to the cell. Lysosomes: they organelle that contain the digestive enzymes. It cleans up the cell’s waste product. Centriole: the main function of the centriole is to help the division in cells. It also helps in...
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...Anatomy and Physiology Task 1 1. Discuss your dissection of the sheep heart and the cardiovascular system of the fetal pig by doing the following: a. Describe the similarities and differences between the fetal pig heart and the sheep heart. Differences: 1. Size 2. The left ventricular wall is thicker in the sheep than the fetal pig. Similarities: They both have 2 atria and 2 ventricles. b. Describe the four valves of the heart, including their name, location, and function. The four valves of the heart are the tricuspid valve, the pulmonic valve, the mitral valve, and the aortic valve. The tricuspid valve: It is located between the right atria and the right ventricle. It is comprised of three “flap-like cusps” which when in its closed position, prevents the deoxygenated blood entering the heart from the body, from backing up in the right atrium from the right ventricle (regurgitation). http://www.healthline.com/human-body-maps/tricuspid-valve The Pulmonic Valve: This valve is found between the right ventricle and the lungs. As the deoxygenated blood continues on its journey through the heart from the right ventricle, it makes its exit by way of the pulmonic valve. This structure is a one-way valve with prevents the flow of blood back into the right ventricle once it leaves the heart. http://www.healthline.com/human-body-maps/pulmonary-valve The mitral valve: This valve is located between the left atrium and the left ventricle. As the now oxygenated blood flows...
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...BIOL 2010 LEARNING OBJECTIVES 1. 1.1. 1.2. 1.3. 1.4. 1.5. 1.6. 1.7. 2. 2.1. 2.2. 2.3. 2.4. 2.5. 2.6. 2.7. 2.8. 2.9. 2.10. 2.11. 2.12. 2.13. 2.14. 2.15. 2.16. 2.17. 2.18. 2.19. 2.20. 2.21. Describe the physical organization of the human body and explain how interaction between body components is critical for the maintenance of homeostasis. Define the terms anatomy and physiology in reference to the human body. (LECT & LAB) Describe each of the following levels of organization of the human body: chemical, cellular, tissue, system, organism. (LECT & LAB) Identify the principal systems of the body. (LECT & LAB) Describe the standard anatomical position of the human body. (LECT & LAB) Compare common anatomical terms used to describe the various regions of the human body. (LECT & LAB) List by name and location the principal body cavities. (LECT & LAB) Define homeostasis and explain the effects of the lack of homeostasis on the body's function. (LECT & LAB) Describe the chemical level of organization of the human body. Describe the interrelationship of matter, elements, and atoms. (LECT) Identify by name and symbol the principal elements of the human body. (LECT) Diagram and label the structure of a typical atom. (LECT) Describe the function of electrons located in incomplete outer energy levels. (LECT) Define the terms isotope and radioisotope and give their functions. (LECT) Describe the three types of chemical bonding (ionic...
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...HUMAN ANATOMY AND PHYSIOLOGY CONTENT Page Number 1.0 Introduction – Integumentary System 3 2.1 The Importance and Mechanism of Integumentary System 4 2.2 Impacts of dysfunction 5-6 2.0 Introduction – Anatomy Of Skin 7 2.1 Epidermis 7 2.1.1 Layer of The Epidermis 8 2.1.2 Specialized Epidermal Cells 9 2.2 Dermis 9 2.2.1 Layer of The Dermis 10 2.2.2 Specialized Dermal Cells 10 2.3 Subcutaneous Tissues 10 3.0 Tattoo 11 3.1 Types of Tattoo 11 3.2 The Procedure of Tattooing 12 3.3 The Risk Involved in Getting Tattooed. 13 3.4 Tattoo Removal 14 4.0 Conclusion 14 - 15 5.0 References 15 1. INTRODUCTION – Integumentary System The Integumentary system consists of the skin and its associated structures such as hair, nails,nerve endings and the sebaceous (oil) and sudoriferous (sweat) glands (Lindh, Pooler, Tamparo and Dahl, 2010,p.790). It is the largest of the body’s anatomy system and count for 12 to 15 percent of body weight covering 1.5-2m2 of surface...
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...AP1 Fall 2014 Final Exam Take Home – Due at 5 pm on October 29th. • 1. Homeostasis is an important theme in studying the human body. Discuss homeostatic processes in each of the organ systems we covered this semester. Be sure to include discussion of negative feedback, set points, receptors and effectors. (7 points each) 2. Homeostasis- The tendency of a living body to maintain relatively stable internal conditions in spite of greater changes in its external environment. (Saladin, 2015) a. Integumentary System – Homeostasis is critical for our body function, in order to stay in homeostasis the body goes through a process called negative feedback. Negative feedback mechanism in the integumentary system goes through 4 steps in order to maintain homeostasis; 1. There is a stimulus or change in the body. Example. Change in the body temperature. a. If the body is too cold it will trigger shivering to warm your body. b. If your body is too hot it will trigger sweating to release heat. 2. The sensor or receptor (sensory neuron) detects change in your body. 3. The control center (brain) sends out signals and messages to the effector. 4. The effector (muscle or gland) is in charge of restoring the body back to homeostasis. (Saladin, 2015) The body must regulate its own body temperature. Our normal set point is 98.6.When we are overheating our body responds in numerous ways in an effort to cool itself, such as sweating. Alternatively, if our body temperature...
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...We started with the introduction to anatomy by defining it as the scientific discipline that investigates the structure of the body. I have discovered that there are two basic approaches to the study of anatomy are systematic (by system) and regional (by area), the latter which is more commonly used in most medical schools. And of course studying the structure is not enough, this is where physiology comes in which is the scientific discipline that deals with the processes or functions of living things. I have known homeostasis as the maintenance of the relatively constant environment in the body but it is only now that I have learned about positive and negative feedback mechanisms which maintain homeostasis and that positive homeostasis can be detrimental at times. I’ve also learned more on the anatomical terms that will be used throughout our course and maybe even in med school. In the study of cells, I was able to recall the things we have discussed in our biological science course in the previous year. I remember the three types of solution namely hypotonic, isotonic, and hypertonic. I also come to know more about the different movements across the cell membrane. However I was new to the transcription and translation that happens in the gene expression of a cell. I was able to associate codons of the mRNA strand with the anticodon of the tRNA. Similar to cytology, I was also able to look back on our discussions about tissues last year. I have refreshed myself on the...
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...Right before the race, Jim was quite stressed and was also feeling nervous; this made his heart rate and respiratory rate to increase. This is due to the breathing centre responses to nervous and chemical signals and changes the rate and depth of breathing to make changing of the body. The activation of sympathetic division had a mutual relationship (corresponded) with arousal and energy generation causing the heart to beat faster, the liver convert glycogen to glucose, bronchi of the lungs dilate and support increased gas exchange, digestion inhibited and secretion of adrenaline from the adrenal medulla is accelerated. The changes that happened in the digestive system and urinary system at this time, is the stimulation of the sympathetic division, this inhibits digestion and urination so that the internal fluid in Jim’s blood would be maintained. For this reason, Jim was sweating. Jim blood glucose level became high because when he is stressed, hormone adrenalin is produced and acraadrenela is release by the ending of sympathetic neuron, this will then activate glycogenolysis to escalate the supply of glucose to the cell. Jim’s mouth was dry because he was dehydrated. This is because the solute concentration in extracellular fluid increases that is tissue fluid becomes hypertonic to cells and the water goes from the cells. However, there is no replacement of the water loss. One minute into the race, Jim needed quite a lot of energy for rowing at full speed. However...
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...Chapter 4: Tissues © 2013 John Wiley & Sons, Inc. All rights reserved. Tissues ■ ■ ■ ■ ■ ■ ■ ■ Types of tissues Epithelial tissue Connective tissue Membranes Muscular tissue Nervous tissue Tissue repair: restoring homeostasis Aging and tissues © 2013 John Wiley & Sons, Inc. All rights reserved. Types of Tissues ❑ A tissue is a group of similar cells that usually has a similar embryological origin and is specialized for a particular function. The various tissues of the body are classified into four basic types: epithelial tissue, connective tissue, muscular tissue, and nervous tissue. Epithelial tissue (eṕ -i-THĒ-lē-al) covers body surfaces; lines body cavities, hollow organs, and ducts (tubes); and forms glands. Connective tissue protects and supports the body and its organs, binds organs together, stores energy reserves as fat, and provides immunity. Muscular tissue generates the physical force needed to make body structures move. Nervous tissue detects changes inside and outside the body and initiates and transmits nerve impulses (action potentials) that coordinate body activities to help maintain homeostasis. ❑ 1. 2. 3. 4. © 2013 John Wiley & Sons, Inc. All rights reserved. Epithelial Tissue © 2013 John Wiley & Sons, Inc. All rights reserved. Epithelial Tissue © 2013 John Wiley & Sons, Inc. All rights reserved. Epithelial Tissue © 2013 John Wiley & Sons, Inc. All rights reserved. Epithelial Tissue © 2013 John Wiley...
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...Anatomy and Physiology of Respiratory System Overview Cells in the body require oxygen to survive. Vital functions of the body are carried out as the body is continuously supplied with oxygen. Without the respiratory system exchange of gases in the alveoli will not be made possible and systemic distribution of oxygen will not be made possible. Thetransportation of oxygen in the different parts of the body is accomplished by the blood of the cardiovascular system. However, it is the respiratory system that carries in oxygen to the body and transports oxygen from the tissue cells to the blood. Thus, cardiovascular system and respiratory system works hand in hand with each other. A problem in the cardiovascular system would affect the other and vice versa. Functional Anatomy of the Respiratory System Nose The nose is the only external part of the respiratory system and is the part where the air passes through. During inhalation and exhalation, air enters the nose by passing through the external nares or nostrils. Nasal cavity is found inside the nose and is divided by a nasal septum. The receptors for the sense of smell, olfactory receptors are found in the mucosa of the slit-like superior part of the nasal cavity which is located beneath the ethmoid bone. Respiratory mucosa lines the rest of the nasal cavity and rests on a rich network of thin-walled veins that warms the air passing by. Important information about nose is the presence of the sticky mucus that is produced...
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...Anatomy and Physiology 2, SCI 136 Research Project Number 40904000. There are many different types of Arthritis. Some of these types are caused by infections, some by injury, some by aging, and some by entirely unknown causes. Infectious arthritis may follow influenza, typhoid fever, tuberculosis, syphilis or gonorrhea. Arthritis of an unknown cause is common and Rheumatoid arthritis is the worst form. Chronic arthritis is common. It has three main forms: osteoarthritis, rheumatoid arthritis, and gout. Osteoarthritis is an inflammatory condition of one or more joints the main symptoms of arthritis are joint pain and stiffness, which typically worsen with age. This is the most common form of arthritis. This disease is known as a degenerative joint disease. It affects about 80% of all Americans. The pain is caused by the degeneration of the joint. The damage to the cartilage occurs as the disease progresses and degenerates and may form some bony spurs at the end of the bones. The bones may grind against each other. Cartilage normally serves as a shock-absorbing cushion between the bones. When it breaks down it results in bones rubbing directly against one another during movement. This friction between the bones causes the bone to thicken, and spurs develop .As time goes on; these abrasions can cause permanent joint damage. Osteoarthritis is most common in the knees, hips, hands and spine. Rheumatoid arthritis is the worst form arthritis. It is a chronic autoimmune...
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...In the nasal cavity, there are three little bumps. Now those three little lumps are called the superior, middle, and inferior meatuses. If you remember back to API when you studied the skull and you looked inside of the nasal cavity, there were three little bones on the left and right of the perpendicular plate of ethmoid. And those were the superior, middle, and inferior conchae. So those little lumps you're looking at are the conchae that you learned about before, but they're just covered with tissue. So in this instance, we're calling them meatuses. And the job of those meatuses is to almost act as though they're speed bumps. So as soon as you sucked the air in through our nostrils, the air will get caught around the meatuses. It slows the air flow down. And when it slowed the air flow down, it will allow time for the nasal cavity to filter and humidify the incoming air. Because the air in our environment is much drier than the inside of our body. So when we breathe air in, if we didn't humidify a little bit, it would potentially dry out our nasal passages. So as soon as we breathe the air in, the nasal cavity will moisten it up, filter it, and then send it down to the deeper parts of the respiratory tract. So again, those meatuses act as sped bumps. They're going to kick up turbulence in the air to sallow us to filter and humidify better. And we know that the air we take in is humidified because if breathed into your hand. And next we have the hard and soft palate, which...
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