Veins and arteries

Question 1

diff between arteries and veins

Answer 1

arteries has a muscular layer
elasticity able to expand and contract, has arteries leave the heart they get smaller

veins are collecting ducts, has valves, when we walk muscle skeletal pump - muscles contract to push blood up the body

as veins goes back to the heart they get bigger

arteries –> arterioles –> capillaries –> venues –> veins

Question 2

layers of the artery

Answer 2

Adventitia outer layer
tunica media - middle layer
- Arteries need oxygenated blood bc middle layer is a muscle
tunica intima - inner layer

Question 3

cerebral retrograde cardioplegia

Answer 3

NOT cardioplegia, it is just cold blood, and de-airing the brain

Question 4

Circle of willis

Question 5

layers of the heart

Answer 5

Three layers of tissue:
Epicardium— protective layer mostly made of connective tissue.
Myocardium— the muscles of the heart.
Endocardium— lines the inside of the heart and protects the valves and chambers.