The Circulatory System

Question 1

Arteries are found in a bundle with veins and nerves called what?

Answer 1

neuromuscular bundle

Question 2

How does an artery supply a territory?

Answer 2

through branches

Question 3

What is it called if an artery splits into two terminal branches?

Answer 3

bifurcation

Question 4

What sort of intraluminal pressure does an artery have?

Answer 4

high

Question 5

What is an anastomosis?

Answer 5

connection between arteries where there is no capillary bed

Question 6

What is a collateral?

Answer 6

an alternative route of blood flow

Question 7

What is vasoconstriction?

Answer 7

contraction of smooth muscle

Question 8

What is vasodilation?

Answer 8

relaxation of smooth muscle where lumen widens

Question 9

What is tonus?

Answer 9

constant low level contraction of smooth muscle

Question 10

The aorta has what type of walls?

Answer 10

elastic

Question 11

The aorta carries what type of blood?

Answer 11

systemic arterial

Question 12

Name the 4 parts of aorta from heart

Answer 12

ascending, arch, thoracic, abdominal

Question 13

The ascending aorta has what 2 branches?

Answer 13

right and left coronary arteries

Question 14

The arch of the aorta has what 3 branches?

Answer 14

brachiocephalic, left common carotid and left subclavian

Question 15

The thoracic aorta has how many branches?

Answer 15

many

Question 16

The abdominal aorta has how many paired and unpaired branches?

Answer 16

3 and 3

Question 17

The brachiocephalic aorta splits into what two arteries?

Answer 17

common carotid to head and subclavian to arm

Question 18

The subclavian artery leads on to be called what?

Answer 18

axillary and then brachial

Question 19

The carotid bifurcates into what?

Answer 19

internal and external carotid

Question 20

Glossopharyngeal nerve has what main function?

Answer 20

detects changes in arterial blood pressure

Question 21

The internal carotid artery supplies what?

Answer 21

brain

Question 22

Where is the circle of willis found on the brain?

Answer 22

inferior aspect

Question 23

What does the blood brain barrier do and how?

Answer 23

stops diffusion of some molecules into brain. Astrocyte process surrounding brain capillaries

Question 24

What are the two branches of thoracic aorta?

Answer 24

bilateral and anterior

Question 25

What does the abdominal aorta bifurcate into?

Answer 25

internal and external iliac arteries

Question 26

What pulse do you get in the neck?

Answer 26

carotid

Question 27

What pulse do you get in the upper limb?

Answer 27

brachial and radial

Question 28

What pulse do you get in the lower limb?

Answer 28

femoral, popliteal

Question 29

Superifical veins run in what tissue?

Answer 29

superficial fascia

Question 30

Where to deep veins lie?

Answer 30

deep to the deep fascia

Question 31

Hepatic venous system provides blood to what?

Answer 31

absorptive GI tract and liver

Question 32

What are the 2 vein systems called?

Answer 32

hepatic portal and systemic

Question 33

Where does lymph drain back into blood?

Answer 33

neck - venous angle