CardioVascular

Question 1

What are the three layers of a blood vessel from the lumen to the outermost layer?

Answer 1

Tunica intima –> Tunica media–>Tunica adventita

Question 2

Which blood vessel layer contains smooth muscle and elastic fibers. Much thicker in arteries?

Answer 2

Tunica Media (MEDIA = MUSCLE!)

Question 3

Which blood vessel layer Connective tissue layer containing collagen and elastic fibers. Much thicker in veins. Large vessels contain vasa vasora, which sup- ply the vessels themselves.

Answer 3

Tunica Adventitia

Question 4

Middle cardiac vein emties into the ______

Answer 4

coronary sinus

Question 5

liver, pituitary, and spleen all have a “_____” arrangement

Answer 5

sinusoidal

Question 6

What is unique about the nuclei in heart muscle cells?

Answer 6

centrally-placed nuclei

Question 7

First heart sound

Answer 7

close of A-V valves

Question 8

Immediately following the closure of the A-V valves is a period of _______ contraction

Answer 8

isoMetric

Question 9

What degree heart block do we see the P wave dissociated from the QRS complex?

Answer 9

3rd degree (no communication between Atria and Ventiricles

Question 10

What does the Vagus monitor to help keep normal breathing rate?

Answer 10

the stretch of the lungs