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35 terms

Anatomy of blood vessels

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tunica interna
Endothelial layer that lines the lumen of all vessels; reduces friction; innermost layer.
tunica interna
tunica media
middle layer of artery; made up of smooth muscle fibers and thick layer of elastic connective tissue
tunica media
tunica externa
aka adventitia. the outermost coating of the blood vessel composed of areolar and fibrous connective tissue. It is supportive and protective
tunica externa
internal elastic lamina
in between tunica media and tunica intima; has pores for nutrient diffusion
internal elastic lamina
External Elastic Lamina
separates the tunica media and the tunica adventitis (externa)
External Elastic Lamina
elastic arteries
largest type of artery; contains many elastic fibers that allow it to stretch in response to each pulse; close to the heart
muscular arteries
"Distributing" distal to elastic arteries, deliver blood to organs, thick tunica media
What's the difference between arteries and veins?
The difference is that arteries carry blood away from the heart and veins carry blood towards the heart.
Whats the structual difference between arteries and veins?
arteries are more muscular than veins, veins are often closer to the skin and contain valves to help keep blood flowing toward the heart, while arteries carry blood away from the heart.
capillaries
connect veins and arteries
capillaries
Aorta
the large trunk artery that carries blood from the left ventricle of the heart to branch arteries
ascending aorta
Branches off the left ventricle; carries oxygen rich blood to parts of the body above the heart
aortic arch
the part of the aorta that arches and turns downward
descending aorta
the largest artery of the body; carries blood away from the heart down the midline of the body
coronary arteries
blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle
brachiocephalic artery
The first major branch off of the aorta and the major artery to the forelimbs and head.
common carotid arteries
o Right common carotid artery originates from the brachiocephalic trunk o Left common carotid artery originates from the arch of the aorta. Blood to head, face and neck.
subclavian arteries
left and right arteries found in the thoracic cavity, first branch to come off the aorta, supplies blood to the arms
internal carotid arteries
branch of common carotid artery and enters through the carotid canal; reached bases of brain through either side of sella turcica
external carotid arteries
supplies structures to EXTERNAL skull
superficial temporal arteries
artery that supplies blood to the muscles of the front, side, and top of the head
facial arteries
Carries blood from the external coprotid to Cheeks, nose, mouth, eyes
maxillary arteries
Carries blood from the Eternal corotid to the Deep Facial structures
occipital arteries
supply posterior dura with blood
vertebral arteries
one of two main arteries to the brain (the other is ICA) is paired rising from the foramen magum and forms the basilar artery
axillary arteries
conveys oxygen rich blood from aorta to arm, pectorals.
subscapular arteries
Conveys oxygen rich blood from aorta to shoulder and arm
brachial arteries
Branch of the axillary arteries that goes down the arm towards the elbow
radial arteries
the brachial artery divides and becomes these as it reaches the elbow and travels along the forearm to the hand.