Capillary walls would consist of which of the following layers?
a. tunica intima
b. tunica media and tunica externa
c. tunica media
d. tunica intima and tunica media
e. tunica externa

The correct option is : a. tunica intima

Explanation:

The blood vessels consists of the arteries, veins, arterioles, venules and the capillaries.

The capillaries are the thin and small blood vessels that connect the arteries to the veins. The capillaries are composed of only one tunica intima layer. The tunica intima is a thin layer which is composed of endothelium and connective tissues.

x = -6.5

explanation:

with this editor, you should be careful to put what you mean. 5/(2x - 7) = 3/(4x +14) is the way i will interpret it. cross multiply

5*(4x + 14) = 3*(2x - 7)       remove the brackets

20x + 70 = 6x - 21             add 21 to both sides

20x+ 70+21= 6x                 combine

20x + 91 = 6x                     subtract 20x

20x-20x+91=6x-20x           combine

91 = - 14x

x = - 91/14

x = - 6.5

between the two muscle layers is the myenteric or auerbach's plexus, which controls peristalsis. in the colon, the muscularis externa is much thicker because the feces are large and heavy, requiring more force to push along. the stomach has a third layer of muscularis externa: the inner oblique layer.