Characteristics of Arteries, Veins and Nerves Flashcards
- Tunica Intima (inner layer)
- Tunica media (Middle later)
- Tunica adventica, or externa (outer later)
Layers of Arteries
Three heavy coats (thick walled).
Arteries
Usually accompanied by vein and nerves in a common sheath.
Arteries
Noticeable elasticity except in the aged.
Arteries
No lumen
Nerves
Only has the tunica intima.
Capillaries
Made of connective tissue.
Tunica Adventica (Externa)
Collapse when cut.
Veins
May be arteries and vein in common sheath.
Veins
Three thin coats.
Veins
Made up of epithelial tissue
Tunica Intima
No vasa vasorum.
Nerves
Blue in color when engorged with blood.
Veins
Thin at the edges.
Veins
Often mistaken for an artery.
Nerves
May be superficial.
Veins
No noticeable vasa vasorum (they do have them).
Veins
Large Lumen.
Veins
Stand open when cut.
Arteries
Glistening White.
Nerves
Only has the tunica intimate and tunica media
Arterioles
Blood vessels supplying nutrients to the larger arteries and veins. These tiny blood vessels are distributed to the walls of the larger veins and arteries throughout the vascular system.
Vasa Vasorum
Have no valves.
Arteries
Solid, striated.
Nerves
White brittle with noticeable vasa vasorum (aged).
Arteries
Thick at the edges.
Arteries
Made of smooth muscle.
Tunica media
Usually have valves.
Veins
Cream colored in youth.
Arteries
Inelastic when compared to arteries.
Nerves
Small Lumen.
Arteries
Deep and well protected.
Arteries
