Anatomy

Question 0

What are the 3 distinct venous systems?

Answer 0

Pulmonary : pulmonary veins carry oxygenated blood form the lungs to the left atrium if the heart.

Systemic : systemic veins return deoxygenated blood from periphery of the body and from the organ structures to the right atruim of the heart.

Portal: is a separate system that carries nutrients from the bowel and the spleen to the liver (where blood is purified)

Question 1

Veins Mirror arteries in the whole body except for which 2 areas?

Answer 1

2 exceptions are

1) connection to the heart
2) one way transport from the bowels to the liver through veins alone.

Question 2

Identify the 6 differences between arteries and veins

Answer 2

Arteries = oxygenated blood.
Veins = deoxygenated blood.

Arterial pressure = 120mmHg (high)
Venous pressure = 20mmHg (low)

Arteries elastic vs veins floppy

Veins have valves , not arteries

Arteries taper in direction of flow : pressure becomes less
Veins taper opposite of flow: flow easier and valves prevent flowing back. Not need so high pressure.

Majority of blood in veins 64%.

Question 3

What should we look out for when we deploy plugs in veins?

Answer 3

The valves as we don’t want to damage them.