Arteries, veins and nerves

Question 1

What is the order of vessels from the heart?

Answer 1

Arteries, arterioles, capillary bed, venules, veins

Question 2

What is it referred to when an artery, vein and nerves travel together?

Answer 2

A neurovascular bundle

Question 3

What are the largest arteries and veins called in the human neck?

Answer 3

Internal jugular vein and common carotid artery

Question 4

State the order of arteries running down the upper limb up until bifurcation

Answer 4

Subclavian artery, axillary artery, brachial artery

Question 5

What does the brachial artery bifurcate into? Also state the names of the anastomoses branches

Answer 5

Bifurcates into the ulnar artery - anastomses is the superficial palmer arch

And the radial artery - anastomoses is the deep palmer arch

Question 6

What is the purpose of anastomoses?

Answer 6

Allows for collateral circulation around a joint when it is flexed, or for continual blood supply if there is a blockage

Question 7

What are the two types of veins and where are they found?

Answer 7

Deep veins - accompany arteries
Superficial veins - lie just beneath the skin in the superficial fascia. Drain into deep veins and are tributaries of deep veins

Question 8

What methods prevent backflow in veins?

Answer 8

Valves, skeletal muscle pump, close relationship with pulsating arteries

Question 9

What is the function of the lymph system?

Answer 9

passes excess extravascular fluid back into the circulatory system

Question 10

What 2 branches is the nervous system split into and what are they made up of?

Answer 10

CNS - brain and spinal cord
PNS - spinal nerves (arise from spinal cord) and cranial nerves (arise from brain and brainstem)

Question 11

What are the branches of the PNS and what are their roles?

Answer 11

Somatic = touch, pressure, pain, sensory. Made up of afferent and efferent neurones (sensory and motor)
Autonomic = made of parasympathetic and sympathetic, fight vs flight