Cardiovascular (vessles&circulation) unit

B

left brachiocephalic vein.

left internal jugular vein.

left cephalic vein.

left common iliac vein.

left cephalic vein.

Hepatic portal

Renal

Superior mesenteric

Celiac trunk

Renal

Valve

Artery

Vein

Tunica media of vein

Valve

E

Vein

Tunica media of vein

Tunica media of artery

Artery

Tunica media of artery

3

2

4

1

2

Femoral artery

Internal iliac artery

External iliac artery

Anterior tibial artery

Femoral artery

Superficial temporal

Subclavian

Common carotid

External jugular

Common carotid

Radial vein

Cephalic vein

Axillary vein

Brachial vein

Brachial vein

The largest arteries of the body are classified as

 

muscular and elastic because they have the same dimensions.

elastic arteries.

arterioles.

muscular arteries.

elastic arteries.

The vessels that supply the lower limbs are the

 

common carotids.

vertebral arteries.

subclavian arteries

external iliac arteries.

external iliac arteries.

Tendons and ligaments have

 

a low degree of vascularization, therefore low perfusion and slow healing.

 

a high degree of vascularization, therefore high perfusion and slow healing.

 

a low degree of vascularization, therefore high perfusion and rapid healing.

 

a high degree of vascularization, therefore high perfusion and rapid healing.

a low degree of vascularization, therefore low perfusion and slow healing.

The ________ is composed of circularly arranged layers of smooth muscle cells.

 

tunica media

 

tunica intima

 

tunica externa

 

None of the answers is correct.

tunica media

Oxygen and carbon dioxide are transported between the blood and interstitial fluid by way of

 

diffusion from areas of higher concentration to lower concentration.

 

pinocytosis using fluid-filled vesicles.

 

exocytosis and endocytosis by endothelial cells.

 

active transport (using ATP) by protein carriers of endothelial cells.

diffusion from areas of higher concentration to lower concentration.

Gas, nutrient, and waste exchange occur between the ________ and the tissues of the body.

 

capillaries

 

veins

 

capillaries and arteries

 

capillaries and veins

capillaries

Precapillary sphincters will

 

cause blood to flow directly from the metarteriole into the postcapillary venule.

 

All of the answers are correct.

 

close when the tissue's needs have been met.

 

control blood flow into the true capillaries.

All of the answers are correct.

Which is the most common type of capillary?

 

Venules

 

Continuous

 

Fenestrated

 

Sinusoids

Continuous

The popliteal artery supplies the

 

hip joint.

 

knee joint.

 

elbow joint.

 

palmar region.

knee joint.

Which of the following is likely during vigorous exercise?

 

Blood flow to the kidneys increases.

 

The skin will be cold and clammy.

 

Blood will be diverted to the digestive organs.

 

Capillaries of the active muscles will be engorged with blood.

Capillaries of the active muscles will be engorged with blood.

The pulmonary trunk carries

 

deoxygenated blood from the right ventricle toward the lungs.

 

oxygenated blood from the lungs toward the left atrium of the heart.

 

oxygenated blood from the right ventricle toward the lungs.

 

oxygenated blood from the left ventricle toward the lungs.

deoxygenated blood from the right ventricle toward the lungs.

Which sequence indicates the correct pathway for blood in the arterial flow of the upper appendage?

 

Subclavian artery - axillary artery - brachial artery - ulnar artery

 

Brachial artery - subclavian artery - axillary artery - radial artery

 

Axillary artery - brachial artery - subclavian artery - ulnar artery

 

Axillary artery - subclavian artery - radial artery - ulnar artery

Subclavian artery - axillary artery - brachial artery - ulnar artery

Which fetal circulatory structure shunts blood from the pulmonary trunk to the aorta?

 

Ductus venosus

 

Ductus arteriosus

 

Foramen ovale

 

Umbilical artery

Ductus arteriosus

Blood pressure is lowest in

 

arterioles.

 

veins.

 

venules.

 

capillaries.

veins.

Valves in veins

 

are the leading cause of high blood pressure.

 

cause venous blood flow to go in only one direction.

 

are formed of the tunica media.

 

make the use of a skeletal muscle pump unnecessary for venous blood flow.

cause venous blood flow to go in only one direction.