Chapter 12 Flashcards
_______ are tubes that deliver blood to the tissues.
a. Veins
b. Blood vessels
c. Lymph vessels
d. Venules
b. Blood vessels
_______ carry blood from the ventricles of the heart to the tissues and
organs of the body.
a. Capillaries
b. Veins
c. Arterioles
d. Arteries
d. Arteries
When plasma enters the tissues, it is called _______ fluid.
a. tissue
b. blood
c. interstitial
d. both A and C
d. both A and C
_______ are the smallest branches of an artery and are important in
regulating blood pressure.
a. Venules
b. Capillaries
c. Arterioles
d. Micro-arteries
c. Arterioles
_______ permit materials to be exchanged between the blood and tissues.
a. Capillaries
b. Veins
c. Arterioles
d. Arteries
a. Capillaries
The _______ is a smooth muscle cell that regulates the blood supply to each organ and its subdivisions.
a. endothelium
b. tunica media
c. lymph node
d. precapillary sphincter
d. precapillary sphincter
Arterioles and venules are connected by _______ in the liver, spleen, and bone marrow.
a. tunics
b. sinusoids
c. capillaries
d. hepatic veins
b. sinusoids
The _______ circulation connects the heart and all the organs and tissues.
a. pulmonary
b. systemic
c. artery
d. lymphatic
b. systemic
The pulmonary _______ deliver blood to the lungs.
a. veins
b. venules
c. arteries
d. capillaries
c. arteries
The left ventricle pumps blood into the largest artery in the body, the _______.
a. femoral artery
b. radial artery
c. carotid
d. aorta
d. aorta
The aortic arch curves from the ________ and makes a U-turn.
a. left ventricle
b. abdominal aorta
c. ascending aorta
d. thoracic aorta
c. ascending aorta
The _______ aorta is the region of the aorta below the diaphragm.
a. ascending
b. abdominal
c. thoracic
d. descending
d. descending
The _______ receives blood from the upper portions of the body.
a. inferior vena cava
b. superior vena cava
c. carotid vein
d. descending aorta
b. superior vena cava
The two _______ pass through the foramen magnum and join on the
ventral surface of the brain stem.
a. carotid arteries
b. basilar arteries
c. jugular veins
d. vertebral arteries
d. vertebral arteries
The _______ delivers blood from the organs of the digestive system to the liver.
a. hepatic portal vein
b. basilar artery
c. radial artery
d. aortic arch
a. hepatic portal vein
Blood delivered to the intestine by the _______ enters capillaries in the
intestinal wall.
a. mesenteric arteries
b. venous sinuses
c. portal veins
d. carotid arteries
a. mesenteric arteries
Which of the following veins carries blood rich in oxygen?
a. Jugular
b. Coronary
c. Pulmonary
d. None of the preceding answers is correct;
veins always carry blood poor in oxygen
c. Pulmonary
Blood pressure can be calculated by multiplying _______.
a. blood flow × blood viscosity
b. blood flow × peripheral resistance
c. pulmonary pressure × aortic pressure
d. blood volume × blood flow
b. blood flow × peripheral resistance
Low blood pressure stimulates the kidneys to release the enzyme _______,which acts on the plasma protein _______.
a. aldosterone; angiotensin
b. angiotensin II; renin estrogen
c. renin; angiotensinogen
d. renin; angiotensin III
c. renin; angiotensinogen
Important function(s) of the lymphatic system is/are _______.
a. to maintain fluid balance
b. to defend the body against disease by
producing lymphocytes
c. to absorb lipids from the intestine
d. all of the preceding answers are correct
d. all of the preceding answers are correct
_______ conduct blood back toward the heart.
a. Arteries
b. Arterioles
c. Capillaries
d. Veins
d. Veins
From capillaries, blood passes into _______.
a. arterioles
b. venules
c. arteries
d. large veins
b. venules
The wall of an artery or vein has three layers, or _______.
a. tunics
b. capillaries
c. sphincters
d. metarterioles
a. tunics
Most _______ have valves that permit the flow of blood toward the heart,
even against the force of gravity.
a. arteries
b. sinuses
c. veins
d. capillaries
c. veins
