fcardio histology

Question 1

way from arteries to the veins

Answer 1

arteries - flexible artery - muscular artery- arterioles -meta arterioles- terminal arterioles - capillaries- venules- post capillary venules - veins

Question 2

layers of the blood vessels

Answer 2

inner most = tunica intima ( endothelium and basement membrane)

inner elastic membrane

middle = tunica media (smooth muscles and elastic fibres)

external elastic membrane

outer layer = tunica adventitia = made up of the supporting connecting tissue

Question 3

what are the small vessels present in the tunica adventiita

Answer 3

vasa vasorum

Question 4

what is different with the meta-arterioles ?

Answer 4

smooth mucsle cekks replaced by pericytes

Question 5

pericytes are non-contractile true or false?

Answer 5

false

Question 6

where are capillaries absent ?

Answer 6

hyaline cartilage

epithelial cells resting on basement membrane

epidermis of skin hair and nails

cornea of the eyes

Question 7

where are continuous capillaries present ?

Answer 7

muscle, connective tissue, lung, skin, nerve

Question 8

where are fenestrated capillaries present ?

Answer 8

have pores

mucosa of gut
endocrine glands
glomeruli

Question 9

where are sinusoidal or discontinuous capillaries present ?

Answer 9

lack basement membrane, and have large gaps

liver, spleen and bone marrow

Question 10

endocardium is also present on the valves t/f

Answer 10

true

Question 11

what is sub endocardium ?

Answer 11

in some areas there is a layer present which caries small blood vessels and the nerves of the impulse conducting system

Question 12

valves have good blood vessel supply ? T/F

Answer 12

false they dont have blood supply

Question 13

3 types of cardiac muscle cells

Answer 13

contractile cells
pacemaker cells
conducting cells