Peripheral Circulation and Regulation

This type of capillary has no gaps between
endothelial cells, is less permeable to large
molecules and exists in muscle and
nervous tissue

continuous capillary

Smooth muscle cells that regulate blood
flow from the thoroughfare channel into
capillaries are called this:

precapillary sphincters

This is the inner layer of blood vessel walls
and consists of endothelium, basement
membrane, lamina propria, and an internal
elastic membrane

tunica intima (interna)

This blood vessel has tunica adventitia
(externa) as the predominant layer:

large veins

Given these blood vessels:
1. arteriole
2. capillary
3. elastic artery
4. muscular artery
5. vein
6. venule
Choose the arrangement that lists the blood
vessels in the order a red blood cell passes
through them as it leaves the heart, travels to a tissue, and returns to the heart

3,4,1,2,6,5

The first branch from the aortic arch is this:

brachiocephalic artery

This artery supplies blood to the stomach,
liver and spleen:

celiac trunk

Blood going to the lungs through the
pulmonary arteries contains a high
concentration of ______ and a low
concentration of ______.

carbon dioxide; oxygen

The left and right internal carotid arteries and
the left and right vertebral arteries all
contribute to this:

circle of Willis (cerebral arterial circle)

If a blood clot formed in the artery named on the left, blood would not enter this artery named on the right:

left common carotid; left internal
carotid

The intercostal veins drain blood from this

spaces between the ribs

The hepatic portal vein is formed by the
junction of these vessels:

superior mesenteric and splenic
veins

Blood from the arms, shoulders, and head passes through this vessel in order to return blood to the heart

superior vena cava

This vein is frequently used as a site for
drawing blood from a patient

median cubital vein

left gonadal (ovarian) vein
2. inferior vena cava
3. left renal vein
4. superior mesenteric vein
Choose the veins, in order, that an
erythrocyte passes through traveling from the
left ovary to the heart.

b. 1,3,2

When taking blood pressure by the auscultatory
method, the stethoscope is used for this:

listen for the turbulent blood flow in the
artery

if each of these factors is doubled, this one
has the greatest influence on blood flow:

radius of the blood vessel