4. CARDIAC and RENAL: capillary (incl. lymph) exchange

Question 1

draw the capillary return cycle

Answer 1

card Numeral II.

Question 2

Which vessel has the highest BP? WHich has lowest?

Answer 2

aorta;

Question 3

Where is blood velocity lowest?

Answer 3

capillaries

Question 4

Where is the area of blood vessels largest?

Answer 4

capillaries

Question 5

Dose blood go faster or slower in a larger area?

Answer 5

slower

Question 6

When at rest, what % of blood is in veins?

Answer 6

2/3

Question 7

When exercising, what % of blood is in veins?

Answer 7

1/2

Question 8

Why on earth would interstitial fliud flow INTO a venule?

Answer 8

osmosis- the venule has higher solutes (8% vs 1%), and there is no hydrostatic opposition because the fluid that came into the capillaries has leaked aout along with the pressure it was under

Question 9

What is the role of lymphatic capillaries?

Answer 9

Since more fluid enters tissues than leaves tissues, it absorbs the extra fluid and transports to thoracic duct where it is emptied back into blood