CVS Flashcards
Arterioles have _ that control blood entering capillaries
Pre-capillary sphincters
Capillaries have _ that are multi-potential cells
Pericytes
Portal circulation is venous in _
Arterial in _
- Liver, pituitary
- Kidney
Tunica _ in capillaries and venules is replaced by pericytes
Media
In large arteries, tunica intima separated from media by _
Internal elastic lamina
In large arteries, tunica media separated from externa by_
External elastic lamina(thinner)
Layers:
Arterioles have only ,
Venules ,
Capillaries_,_
- Tunica media, endothelium
- Tunica externa, endothelium
- Pericytes, endothelium
Vessels to vessles?
Where?
- Vasa vasorum
- In tunica media/externa in large/medium vessels
T/F: Blood vessels are innervated by myelinated sympathetic nerve fibers
False. Unmyelinated
Afferent fibers(2) and where they are found
- Baroreceptors(carotid sinus and arch of aorta)
- Chemoreceptors(Bodies of carotid and aorta)
Types of capillaries(3)
- Continuous/somatic
- Fenestrated
- Sinusoidal/discontinuous
Continous capillaries are found in _
Transports fluid via _
- Muscle, CT, skin, lung
- Pinocytosis, caveolae
Fenestrated capillaries are found in _
Those without a diaphragm can be found in _
- Kidney, intestine, endocrine glands
- Glomerulus
Sinusoidal capillaries are found in _
Liver, bone marrow, spleen
Where would direct arteriovenous anastomoses occur?
Skeletal muscle and skin of hands/feet
