Question

The diagram below shows part of the capillary bed in an organ of the human body. Some of the blood arriving at the capillaries at points labelled A, moves out into the spaces between the tissue cells. Study the diagram and answer the questions that follow :
(a)When the liquid from the blood surrounds the cells, what is it called?
(b)Name any one important component of the blood which remains inside the capillaries and fails to move out into the spaces.
(c)Some of the liquid surrounding the cells does not pass directly back into the blood but eventually reaches it by another route through vessel X. Name the fluid present in vessel X.
(d)State two important functions performed in our body by the fluid present in the vessel X.

Answer 1

(a) When the liquid from the blood surrounds the cells, what is it called?
Solution:-The liquid from the blood surrounds the cells is called tissue fluid.
(b) Name any one important component of the blood which remains inside the capillaries and fails to move out into the spaces.
Solution:-The important component of the blood which remains inside the capillaries and fails to move out into the spaces is Red Blood Cells.
(c) Some of the liquid surrounding the cells does not pass directly back into the blood but eventually reaches it by another route through vessel X. name the fluid present in vessel X.
Solution:-Lymph is the fluid that presents in vessel X.
(d) State two important functions performed in our body by the fluid present in vessel X.
Solution:-
Functions of lymph
1. Nutritive: Supplies nutrition to those parts where blood cannot reach.
2. Drainage: It drains away excess tissues fluid and metabolites and returns proteins to the blood from tissue spaces.
3. Absorption: Fats from the intestine are absorbed through lymphatics.