cardio vasc disease, blood circulation and tissue fluid

Question 1

atheroma:

Answer 1

build up of fatty plaque in arteries

Question 2

thrombosis

Answer 2

blood clot in arteries

Question 3

aneurysm

Answer 3

stretchy endothelium balloons out of muscle of an artery

Question 4

what is the general flow of blood around the body from the lungs?

Answer 4

lungs –> pulmonary vein –> heart –> renal artery –> kidney –> renal vein –> heart –> pulmonary artery

Question 5

formation of tissue fluid

Answer 5

> higher hydrostatic pressure in blood than tissue fluid
water and small molecules forced out e.g Na+, glucose, O2
large molecules stay inside capillary e.g proteins

Question 6

return of tissue fluid

Answer 6

> the water potential in the blood is lower than in the tissue fluid
because proteins have not moved out and remain in the blood
so water moves in by osmosis
so hydrostatic pressure drops becase water moves into capillaries down pressure gradient
tissue fluid drains into the lymph