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Question
What function does placental PTHrp (parathyroid hormone"related peptide) serve?a. It helps prepare the mammary glands for lactation.
b. It increases maternal plasma Ca2+levels for use in calcifying fetal bones.
c. It softens the cervix in preparation for cervical dilation at parturition.
d. It maintains the corpus luteum of pregnancy.
e. It stimulates growth of the myometrium.
Answer
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Related questions
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a. True
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a. True
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The plasma clearance rate for a secreted substance is always less than the glomerular filtration rate.
a. True
b. False
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Hydrogen ions are only secreted by the proximal tubules.
a. True
b. False
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Plasma protein concentration can become extremely high in diabetes mellitus, a digestive disorder involving inadequate insulin action.
a. True
b. False
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a. True
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The loop of Henle forms a sharp U-shaped or hairpin loop that surrounds the renal cortex.
a. True
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What does micturition mean?
a. The process of bladder emptying or urination
b. The process of filtration through the glomerulus
c. The acidification of urine
d. The final filtration of urine
e. A urinary bacterial infection
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What happens when the hydrogen ion concentration in the body fluids is too low?
a. Oxygen absorption increases.
b. Hydrogen absorption increases.
c. Hydrogen absorption decreases.
d. Hydrogen secretion increases.
e. Hydrogen secretion decreases.
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The most prevalent ions secreted by the tubules are:
a. sodium and chloride
b. sodium and hydrogen
c. sodium and potassium
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a. potassium
b. chloride
c. sodium
d. glucose
e. phosphorus
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How are glucose and amino acids reabsorbed in the proximal tubule?
a. primary passive transport
b. secondary passive transport
c. primary active transport
d. secondary active transport
e. simple diffusion
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a. internal regulation and intrinsic parasympathetic control
b. autoregulation and intrinsic sympathetic control
c. internal regulation and extrinsic parasympathetic control
d. autoregulation and extrinsic sympathetic control
e. external regulation and extrinsic parasympathetic control
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Emphysema is characterized by __________ of the smaller airways and breakdown of __________ walls.
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The major inspiratory musclesthe muscles that contract to accomplish an inspiration during quiet breathinginclude the __________ and __________ intercostal muscles.
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a. True
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a. True
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a. True
b. False
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a. chest muscles
b. abdominal muscles
c. intercostal muscles
d. bronchioles
e. diaphragm
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Generation of respiratory rhythm is now known to lie in the:
a. medullary respiratory center
b. pneumotaxic center
c. respiratory modulator
d. pre-Btzinger complex
e. apneustic center
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c. pH of the blood
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e. PO2 of the blood