HUBS192 Lecture 6 - Cardiovascular system, Circulatory System Anatomy, Arteries and Veins Flashcards
what does the colour red indicate?
indicates an artery
what does the colour blue indicate?
indicates a vein
what is the blood supply path from the heart to the foot in terms of the major arteries?
1) starts at the ascending aorta down to the
2) aortic arch down to the
3) descending thoracic aorta down to the
4) abdominal aorta down to the
5) aortic bification descending down the
6) common iliac artery to the
7) external iliac artery and down to the
8) femoral artery down to the
9) popliteal artery down to the
10) posterior tibial artery and finally down to the
11) plantar arch
what is the blood supply path from the foot back up to the heart in terms of the major veins?
1) starts at the plantar venous arch and up to
2) posterior tibial vein up to the
3) popliteal vein up the
4) great saphenous vein up to the
5) femoral vein up to the
6) external iliac vein and up the
7) common iliac vein up to the
8) inferior vena cava
what is the great saphenous vein?
the longest superficial vein that runs from the ankle to the groin
what are the 3 layers of the blood vessel wall?
1) tunica intima
2) tunica media
3) tunica adventitia (externa)
what 3 components make up the tunica intima?
1) endothelium
2) sub-endothelium
3) internal elastic lamina (IEL)
what is endothelium?
simple squamous epithelium which lines the lumen of all tissues
what is sub-endothelium?
sparse pad of loose FCT cushioning the endothelium
what is the internal elastic lamina (IEL)?
condensed sheet of elastic tissue
what is the relationship between the development of IEL in arteries and veins?
IEL is well developed in arteries and less developed in veins
what 2 components make up the tunica media?
1) smooth muscle
2) connective tissue fibres (mainly collagen and elastin)
how is the thickness of the tunica media determined?
thickness of the media is proportional to both vessel diameter and blood pressure
what 3 components make up the tunica externa?
1) loose FCT (high content of collagen and varying amounts of elastin)
2) lymphatics
3) autonomic nerves
what is found in large vessels in the tunica externa?
vasa vasorum
