Type
Quiz
Book Title
Human Physiology 14th Edition
ISBN 13
978-0077836375

PSY 74743

July 19, 2017
Destruction of which cell type in the fetus would affect adipocyte number in the adult?
A.myoblasts
B.neuroblasts
C.epiblasts
D.fibroblasts
Expanded blood volume stimulates stretch receptors in the atria of the heart causing
increased secretion of
A.atrial natriuretic peptide.
B.aldosterone.
C.epinephrine.
D.parasympathetic antagonists.
What creates a Na+ concentration gradient in the proximal tubule?
A.Na+/K+ pump
B.diffusion of Na+
C.osmosis of water
D.diffusion of Cl-
The ability of water to be pulled as a column through narrow channels is called
A.osmalality.
B.surface tension.
C.neutrality.
D.capillary action.
A normal red blood cell count is in the range of __________ /mm3.
A.4.23-5.98 million
B.4,300-10,800
C.120-220
D.130-400 thousand
The first line of defense in the stomach against damaging acid and pepsin is the
A.tight junctions of epithelial cells.
B.rapid rate of epithelial cell replacement.
C.adherent layer of mucus.
D.release of gastrin.
The addition of water with the proper enzymes to a molecule is called
A.dehydration synthesis.
B.condensation.
C.hydrolysis.
D.combustion.
A(n) ________________ is a device that is implanted into a pectoral subcutaneous
pocket that delivers shocks to the heart when ventricular fibrillation is detected.
A.implantable converter-defibrillator
B.ischemic defibrillator
C.atrial defibrillator
D.myocardial defibrillator
The collateral ganglia contain
A.-adrenergic receptors.
B.-adrenergic receptors.
C.muscarinic receptors.
D.nicotinic receptors.
What is the role of serotonin in blood clotting?
A.causes platelets to become sticky
B.enhances the platelet release reaction
C.causes vasoconstriction of blood vessels to slow loss of blood
D.converts fibrinogen to fibrin
Information obtained via _____________ is transmitted directly to the limbic system.
A.gustation
B.audition
C.olfaction
D.touch
Genes that have been silenced are passed to daughter cells during mitosis and meiosis
in a process called
A.apoptosis.
B.necrosis.
C.hypertrophy.
D.epigenetic inheritance.
Which of the following is NOT a contributing factor to skeletal muscle fatigue?
A.increased intracellular K+
B.depletion of intracellular K+
C.accumulation of extracellular K+
D.accumulation of cytoplasmic PO4
3-
Based on experimental evidence, the ___________ hypothalamus acts as the body's
thermostat.
A. preoptic-anterior
B. lateral
C. medial
D. supraoptic
Cor pulmonale may result from a COPD such as emphysema.
Most of the glucose secreted by the liver during fasting is due to
A. glycogenolysis.
B. gluconeogenesis.
C. lipolysis.
D. deamination.
Central chemoreceptors in the medulla oblongata directly detect changes in the pH of
the
A.blood.
B.cerebrospinal fluid.
C.lymph.
D.air.
Duchenne's muscular dystrophy
A. is an X-linked recessive trait.
B. most often affects women.
C. involves degeneration of the smooth muscle dense bodies.
D. All apply.
Proteins that are partially embedded on one side of the plasma membrane are
A. integral proteins.
B. transport proteins.
C. peripheral proteins.
D. fluid proteins.
The first 1 to 2 minutes of moderate to heavy exercise relies on _____ for ATP
production.
A.aerobic respiration of glucose
B.anaerobic respiration of glucose
C.aerobic respiration of fatty acids
D.anaerobic respiration of amino acids
The acidic chyme entering the duodenum initiates all of the following actions EXCEPT:
A.the intestinal phase of gastric function
B.the release of serotonin from the duodenum
C.the release of bicarbonate from the pancreas
D.the release of bicarbonate into bile
A tumor of the ______________ referred to as a pheochromocytoma.
A.adrenal cortex
B.adrenal medulla
C.thyroid gland
D.pineal gland
Antidiuretic hormone
A.stimulates water reabsorption by the kidney.
B.induces fusion of aquaporin containing vesicles with the plasma membrane.
C.is secreted in response to dehydration.
D.All of the choices are correct.
Fluid secretion by lung cells is due to _______ alveolar cells.
A.active transport of Na+ into
B.active transport of Cl- out of
C.passive transport of HCO3
- out of
D.active transport of Na+ out of
Aerobic respiration
A. uses glucose.
B. generates water.
C. generates oxygen.
D. Both uses glucose and generates water.
Age-related hearing impairment is known as
A.presbycusis.
B.presbyopia.
C.conduction deafness.
D.otosclerosis.
An increase in ventilation due to a higher elevation is called
A.hypoxic ventilatory response.
B.acute mountain sickness.
C.thalassemia.
D.Bohr effect.
Which gas(es) can function as a neurotransmitter?
A. carbon dioxide
B. nitric oxide
C. carbon monoxide
D. nitric oxide and carbon monoxide.
Anaerobic respiration metabolism is triggered when the ratio of ______________ falls
below a critical level.
A.carbon dioxide supply to oxygen need
B.oxygen supply to glucose need
C.glucose supply to glucose need
D.oxygen supply to oxygen need
A muscle that constricts an opening is a/an
A.extensor.
B.levator.
C.antagonist.
D.sphincter.
The average glomerular filtration rate is equal to
A.180 L/day.
B.5.5 L/min.
C.100 mmHg/hour.
D.8 mg/hour.
Which of the following statements about enzymes is NOT true?
A.Enzymes increase chemical reaction rates.
B.Enzymes are consumed during a chemical reaction.
C.Enzymes decrease the free energy of activation of specific reactions.
D.Enzymes have unique pH and temperature optima.

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