nerves and vessels

Question 1

pulmonary artery carries

Answer 1

deoxygenated blood from RV to lungs

Question 2

systemic artery carries

Answer 2

oxygenated blood from LV to whole body

Question 3

anastomoses =

Answer 3

link tubular structures
-alternative route for blood circulation

Question 4

true anastomoses

Answer 4

in the hand, between branches of muscular arteries

Question 5

potential anastomoses

Answer 5

not permanently present

Question 6

arteriovenous anastomoses

Answer 6

directly between small arteries and veins
-temp regulation, and erectile tissue

Question 7

end arteries - how are they isolated:

Answer 7

artery is the only supply to a particular part

Question 8

end arteries - anatomical end arteries:

Answer 8

-no anastomoses
-to parts of brain, to retina

Question 9

end arteries - functional end arteries:

Answer 9

potential anastomoses eg. coronary arteries

Question 10

neurovascular supply to arteries

Answer 10

sympathetic (vasomotor) nerve fibres lead to vasodilation except erectile tissue - parasympathetic nerves cause vasodilation

vasa vasorum = blood supply to tunica media and tunica adventitia

Question 11

blood flow through veins (3):

Answer 11

1. vascular venous pump - artery in the middle and veins on either side (venae comitantes + valves)
2. muscular venous pump
3. thoracic venous pump

Question 12

PNS - have … cranial nerves that have parasympathetic function

Answer 12

4

Question 13

anastamoses around joints

Answer 13

alternative flow pattern when artery kicked by joint flexion

Question 14

how are spinal nerves mixed

Answer 14

have motor and sensory nerves

Question 15

posterior ramus of spinal nerve innervates

Answer 15

muscles and tissues of our back

Question 16

anterior ramus of spinal nerves converge and intermingle to form

Answer 16

plexuses

Question 17

what is myotome

Answer 17

group of muscles innervated by motor fibres

Question 18

what is dermatome

Answer 18

area of skin innervated by sensory fibres supplied by individual spinal nerve

Question 19

all of our SNS arises in spinal cord between

Answer 19

T1-L2
-find cell bodies of the preganglionic sympathetic nerves

-ganglionated cord
-paravertebral ganglia

Question 20

venae comitantes

Answer 20

pair of veins, the closely accompany an artery

Question 21

vasa vasorum

Answer 21

small blood vessels that supply the walls of larger arteries and veins

Question 22

end artery

Answer 22

artery that is the only supply of oxygenated blood to a portion of tissue - no anastamoses

Question 23

collateral circulation

Answer 23

alternate blood vessels that can take over when another artery/vein is blocked or damaged

Question 24

arterial system arises from

Answer 24

ventricles of the heart
-pulmonary and systemic

Question 25

large artery have low/high resistance and conducting

Answer 25

low resistance

Question 26

main resistance vessels that control regional blood flow

Answer 26

arteriole

Question 27

exchange vessels between arteries and capillaries are called =

Answer 27

capillaries

Question 28

anastamoses around joints

Answer 28

alternative flow pattern when artery kinked by joint flexion

Question 29

which anastamoses involved in temp regulation

Answer 29

arteriovenous anastamoses

Question 30

veins, capillaries, small veins (venules) in size order from smallest to biggest

Answer 30

capillaries --> small veins (venules) --> veins