Hydrostatic vs Osmotic Pressure
Hydrostatic pressure is the pressure going outward from the capillary.
Hydrostatic Pressure forces the fluid from capillary to move outward into the interstitial space.
Osmotic pressure is the water trying to move from interstitial space into the capillary
Hydrostatic pressure will be greater in the arterial side as opposed to the venule side. Osmotic Pressure is constant throughout the capillary.
Because the hydrostatic pressure drops across the capillary, at the artery side fluid is pushed into the interstitial space whereas in the venule side, fluid is pushed into the vessel.
If you have high blood pressure, it can cause build up of fluid in interstitial space (due to high hydrostatic pressure) and cause edema. Also, if fluid is not taken in by lymphatic vessels, it can also cause edema.
Water that is lost from fluid due to hydrostatic pressure eventually goes into lymph vessels and is put back into the vessels.
Note: Capillary walls are made up of endothelial cells

Sodium Potassium ATPase:
Pumps 3 Na ions out and 2 K ions in.

Ketone Bodies:
Ketone bodies are produced when AcetylcoA exceeds krebs cycles capacity. So, when you are starving, ketone bodies are used primarily rather than glucose. Glucose is preserved for brain.
Brain, heart, muscle can use ketone bodies. Liver cannot use ketone bodies.

Insulin:
Insulin helps glucose intake by cells normally.

Unsaturated fat is easy to burn off because they produce less energy…hence they are healthier.

T-tubles are only found in striated muscles (Skeletal and Cardiac)

Reynolds number is proportional to velocity, Radius and density. It is also inversely proportional to viscocity. So basically, lower the velocity, or lower the radius or lower the density, the more laminar the flow is (smaller Ryenolds Number). Higher the Viscosity is, the more