Physiology V01 - Introduction to Human Physiology » Fall 2021 » Lecture Quiz 9

Need help with your exam preparation?

Existing Quiz Clients Login here
Question #1
What factors are directly proportional to the flow? 
A.   pressure difference and radius of the vessel
B.   pressure difference and length of the vessel
C.   blood viscosity and length of the vessel
D.   peripheral resistance and blood viscosity
Question #2
The peripheral resistance (PR) is directly proportional to the blood viscosity, vessel length and vessel radius.
A.   TRUE
B.   FALSE
Question #3
Which of the following is not correct?
A.   the mean arterial pressure = systolic pressure + 1/3 the pulse pressure
B.   blood velocity in the arteries is fast to slow (50 cm/s to 1 cm/s)
C.   systolic pressure is the arterial pressure during systole
D.   diastolic pressure is the arterial pressure during diastole
E.   pulse pressure is equal to the systolic minus the diastolic pressures
Question #4
At the venous end of a capillary, the capillary fluid pressure (CHP) is greater than the blood colloid osmotic pressure (BCOP), as a result fluids are filtered from the blood into the interstitial spaces.
A.   FALSE
B.   TRUE
Question #5
Which of the following would cause vasoconstriction leading to an increase in PR and BP?
A.   angiotensin II, aldosterone and atrial natriuretic peptide (ANP)
B.   ↑ of the carotid and aortic bodies, aldosterone and atrial natriuretic peptide (ANP)
C.   ↑ of the carotid and aortic bodies, ↓ of the baroreceptors, and angiotensin II
Question #6
An increase in the metabolic rate of a tissue would lead to constriction of arterioles and precapillary sphincters, resulting in a decrease in blood flow to that tissue.
A.   TRUE
B.   FALSE
Question #7
What causes lymph to flow?
A.   contraction of the heart, contraction of the (larger) lymphatic vessels and gravity
B.   skeletal and respiratory pumps, contraction of the (larger) lymphatic vessels, and pulsations of nearby arteries
C.   pulsations of nearby arteries, contraction of the heart and gravity
Question #8
Lymph has the exact same composition as the blood plasma.
A.   FALSE
B.   TRUE
Question #9
Which of the following is not true of the spleen?
A.   contains macrophages and lymphocytes that remove microbes and cancer cells from the lymph
B.   site of erythrocyte production in the fetus
C.   all the above
D.   stores iron, platelets and blood
E.   destroys worn-out blood cells
Question #10
Lymph nodes contain lymphocytes that phagocytize bacteria that get through the mucosal epithelium.
A.   FALSE
B.   TRUE
Question #11
Which is an effect of atrial natriuretic peptide (ANP)?
A.   ↑ Na+ and H2O secretion by kidneys and ↓ ADH secretion
B.   ↑ Na+ and H2O absorption by kidneys and vasoconstriction
C.   ↑ ADH secretion and ↑ Na+ and H2O absorption by kidneys
D.   vasoconstriction and ↑ Na+ and H2O absorption by kidneys
Question #12
Where does the development of the membrane receptors on T cells (TCRs) occur?
A.   red bone marrow
B.   parathyroid glands
C.   thymus gland
D.   spleen
E.   thyroid gland

Need help with your exam preparation?

Existing Quiz Clients Login here