VASCULAR BIOLOGY 1 STUDY
GUIDE / QUESTIONS AND
CORRECT ANSWERS 2025 GADED
A+ LATEST UPDATE.
1/5
, 1. What are the components of the cardiovascular system? ANSWER Blood vascular system
and lymphatic vascular system
2. What layers exist in the general structure of a blood vessel? ANSWER Tunica intima, tunica
media, and tunica adventitia
3. What is the tunica intima composed of? ANSWER Innermost layer, in contact with blood flow.
Endothelium and basal lamina layer, subendothelial layer that consists of loost CT, occasional smooth
muscle cells and internal elastic membrane composed of elastin
4. What is the tunica media composed of? ANSWER Concentric layers of smooth muscle cells,
variable amounts of elastin, elastic fibers, fibronectin, reticular fibers, proteo- glycans
5. What is the tunica adventitia composed of? ANSWER Outermost layer. Connective tissue
layer made of Type 1 collagen fibers, elastic fibers and fibroblasts
6. What is the vasa vasorum? ANSWER Vessels of the blood vessels. Supply them with oxygen
7. Whats the difference between vasa vasorum in veins vs. arteries? ANSWER Veins have vasa
vasorum that go much deeper than in arteries because arteries carry oxygenated blood, so they don't
require as extensive vessels for oxygen delivery
8. What happens to the vasa vasorum in atherosclerosis? ANSWER Contribute to the
angiogenesis and inflammation of the disease vascular wall
9. What happens to the vasa vasorum in syphilis? ANSWER The vasa vasorum of the ascending
aorta become inflamed, resulting in endarteritis and periarteritis of the vasa vasorum, which eventually
become obliterated. Causes focal necrosis, scarring of the media and degeneration of the elastic lamellae.
Tree bark appearance on the intimal surface of the aorta
10. Where are nerve endings found in arteries? ANSWER In the tunica adventitia
2/5
GUIDE / QUESTIONS AND
CORRECT ANSWERS 2025 GADED
A+ LATEST UPDATE.
1/5
, 1. What are the components of the cardiovascular system? ANSWER Blood vascular system
and lymphatic vascular system
2. What layers exist in the general structure of a blood vessel? ANSWER Tunica intima, tunica
media, and tunica adventitia
3. What is the tunica intima composed of? ANSWER Innermost layer, in contact with blood flow.
Endothelium and basal lamina layer, subendothelial layer that consists of loost CT, occasional smooth
muscle cells and internal elastic membrane composed of elastin
4. What is the tunica media composed of? ANSWER Concentric layers of smooth muscle cells,
variable amounts of elastin, elastic fibers, fibronectin, reticular fibers, proteo- glycans
5. What is the tunica adventitia composed of? ANSWER Outermost layer. Connective tissue
layer made of Type 1 collagen fibers, elastic fibers and fibroblasts
6. What is the vasa vasorum? ANSWER Vessels of the blood vessels. Supply them with oxygen
7. Whats the difference between vasa vasorum in veins vs. arteries? ANSWER Veins have vasa
vasorum that go much deeper than in arteries because arteries carry oxygenated blood, so they don't
require as extensive vessels for oxygen delivery
8. What happens to the vasa vasorum in atherosclerosis? ANSWER Contribute to the
angiogenesis and inflammation of the disease vascular wall
9. What happens to the vasa vasorum in syphilis? ANSWER The vasa vasorum of the ascending
aorta become inflamed, resulting in endarteritis and periarteritis of the vasa vasorum, which eventually
become obliterated. Causes focal necrosis, scarring of the media and degeneration of the elastic lamellae.
Tree bark appearance on the intimal surface of the aorta
10. Where are nerve endings found in arteries? ANSWER In the tunica adventitia
2/5
