Which of the following describes the production of red blood cells? Select one: a. The kidneys release erythropoietin...

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Medical Sciences

Which of the following describes the production of redblood cells?
Select one:
a. The kidneys release erythropoietin which stimulates RBCproduction.
b. High oxygen levels stimulate the production of more red bloodcells.
c. RBC production occurs in the lymph nodes.
d. The production of angiotensinogen is an intermediate step inmaking more red blood cells.
e. more than one answer is correct
Which of the following does NOT increase venous returnto the heart?
Select one:
a. skeletal muscle pump squeezing blood through the veins
b. sympathetic nerve activity causing venousvasoconstriction
c. respiratory pump providing a pressure gradient between thelower veins and the chest veins
d. parasympathetic activity causing venous vasodilation
e. more than one answer applies
Which of the following statements is NOTtrue?
Select one:
a. Saltatory conduction occurs in myelinated nerve fibers.
b. Along any nerve cell membrane in betweenSchwann cells, action potentials are propagated by contiguousconduction.
c. Saltatory conduction is faster than contiguousconduction.
d. Myelin acts as an insulator to slow down the impulse.

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3.6 Ratings (318 Votes)

1 A The kidneys release erythropoietin which stimulates RBC productionErythropoietin hormone is produced by the kidney which promotes the red blood cells formation by the bone marrow erythropoietin is sensitive to low oxygen levels in the blood that travels through the kidney Low oxygen level induces the production See Answer

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