Question

1. Where does phagocytosis of old, fragile red blood cells occur?

2. What do I mean by “inappropriate clotting?” Is this a good thing or a bad thing? Why? Give and example of a condition caused by in appropriate clotting ans/ or embolus formation from the inappropriate clot.

3. Which chamber od the heart is thickest and why?

Answer 1

Answer

1) The phagocytosis of old, fragile red blood cells mainly occurs in the spleen (secondary lymphoid organ).
- This process also occurs in liver.

2) Inappropriate clotting is the term that refers to the condition where abnormal blood clots are formed in the venis of legs or in small arteries of the heart.
- It is a bad condition as these clots leads to various complications.
- This condition can leads to formation of thrombus or embolus. A thrombus is blockage of blood vessel caused by a localized blood clot. An embolus is amall blood clot that circulates in the vessles.
Example : Deep vein thrombosis

3) The heart chamber that is thickest among all is : Left ventricle

- As left ventricle pumps oxygenated blood to all the body parts via aorta, it contains thick muscular layer. Thick myocardium helps the left ventricle to contract forcefully.