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

Psych 48194

July 19, 2017
Poisoning the Na+/K+ pump would
A. generate a more negative membrane potential.
B. increase cellular permeability to Na+.
C. inhibit secondary active transport.
D. increase cellular permeability to K+.
The major plasma protein is
A.alpha globulin.
B.beta globulin.
C.fibrinogen.
D.albumin.
How do small ions like Na+ of K+ pass through the plasma membrane?
A. gated channels
B. ion channels
C. carrier proteins
D. simple diffusion
Which of the following is true?
A.Blood in the pulmonary veins is low in oxygen.
B.Blood in the pulmonary veins is high in carbon dioxide.
C.The oxygen concentration of inspired air is higher than that of alveolar air.
D.All of the choices are true.
Sensorineural deafness can be caused by all of the following except
A.excessively loud noises.
B.build up of wax in the ears.
C.damage to the cochlear nerve.
D.loss of hair cells in the cochlea.
Where do the tracts carrying impulses of proprioception and pressure cross?
A.in the spinal cord at the level the axons enter the cord
B.in the medulla oblongata
C.in the thalamus
D.the axons do not cross
Which of the following is NOT one of the three functional categories of
corticosteroids?
A.mineralocorticoids
B.glucocorticoids
C.thyrocorticoids
D.sex steroids
The process of waste removal is called
A.defecation.
B.mastication.
C.deglutition.
D.segmentation.
When a muscle is stimulated to contract, calcium release channels in the SR will release
Ca2+ by
A. active transport.
B. facilitated diffusion.
C. passive diffusion.
D. exocytosis.
The actions of parathyroid hormones are is antagonized by the actions of
A.vitamin D.
B.calcitonin.
C.estradiol.
D.insulin.
Neurons of the ventrolateral preoptic nucleus (VLPO) of the hypothalamus release
_______ that promotes sleep.
A. GABA
B. acetylcholine
C. dopamine
D. histamine
The bending of the stereocilia of the organ of Corti opens membrane channels that are
permeable to mainly ____, which causes depolarization.
A. Na+
B. K+
C. Ca2+
D. All apply.
Degeneration of spinal motor neurons in adults may be due to a lack of ____________
factor.
A. brain-derived neurotrophic (BDNF)
B. neurotrophin-3
C. nerve growth (NGF)
D. glial-derived neurotrophic (GDNF)
Cartilage cells are known as
A.osteocytes.
B.osteoblasts.
C.osteons.
D.chondrocytes.
Acetylcholine binds to _______ receptors of the heart and causes the opening of ___
channels.
A.muscarinic, K+
B.nicotinic, K+
C.muscarinic, Na+
D.nicotinic, Na+
The __________ provides enzymes that allows the sperm to digest a pathway through
the zona pellucida to the oocyte.
A.chorion
B.zygote
C.acrosome
D.blastocyst
Cellular senescence may be prevented by
A.increased DNA polymerase activity.
B.increased telomerase activity.
C.increased RNA polymerase activity.
D.increased synthase activity.
Acetylcholine usually induces an excitatory postsynaptic potential when binding to
________ receptors and an inhibitory postsynaptic potential when binding to some
____________ receptors.
A. NMDA, nicotinic
B. nicotinic, muscarinic
C. muscarinic, NMDA
D. muscarinic, nicotinic
The ejection fraction is
A.normally about 60% at rest.
B.the ratio of end diastolic volume to end systolic volume.
C.increased by parasympathetic agonists.
D.decreased by sympathetic agonists.
Diets promoting cardiovascular health contain no more than ______________ of total
calories as fat.
A.30%
B.0%
C.50%
D.20%
In brown fat, norepinephrine stimulates
A.beta1-adrenergic receptors.
B.beta2-adrenergic receptors.
C.beta3-adrenergic receptors.
D.All of the choices are correct.
A tracheotomy is the insertion of a tube into the trachea.
Which of the following is true of olfaction?
A. There may be as many as a 1000 different olfactory receptor proteins.
B. Humans can distinguish up to 10,000 different odors.
C. Humans have the most acute sense of smell of all the mammals.
D. All apply.
Essential hypertension may result from
A.high salt diet.
B.decreased ADH secretion.
C.decreased sympathetic vasoconstriction.
D.decreased release of endothelin.
A six molar sucrose (molecular weight = 342g) solution would contain
A. 57g sucrose per liter.
B. 342g sucrose per liter.
C. 1026g sucrose per liter.
D. 2052g sucrose per liter.
The suprachiasmatic nuclei
A. are located in the anterior hypothalamus.
B. controls melatonin secretion from the pineal gland.
C. contains "clock cells" that have patterns which repeat about every twenty-four hours.
D. All apply.
Cerebrospinal fluid is found
A.within the central canal.
B.within the ventricles.
C.within the olfactory bulbs.
D.both within the central canal and within the ventricles.
The prostaglandin, thromboxane A2, stimulates
A.vasodilation.
B.platelet aggregation.
C.platelet repelling.
D.vasoconstriction.
The inability to reach out and touch an object with control and accuracy may result
from damage to the
A. pons.
B. cerebrum.
C. cerebellum.
D. midbrain.
Neuromuscular disorders and electrocardiographic abnormalities can result from
A.hypokalemia.
B.excessive use of loop diuretics.
C.excessive use of thiazide diuretics.
D.All of the choices are correct.
Damage to the __________ nerve root would prevent the muscle spindle from
transmitting information to the central nervous system.
A.dorsal
B.ventral
When a scientist performs measurements in an experiment and does not know if the
subject is part of the experimental or the control group, it is known as a _________
measurement.
A.blind
B.qualitative
C.null
D.statistical
Erythroblastosis fetalis occurs when
A.the mother has blood type A and the fetus has blood type O.
B.the mother has Rh+ blood and the fetus has Rh- blood.
C.the mother has Rh- blood and the fetus has Rh+ blood.
D.the mother has type AB blood and the fetus has type O blood.
The muscle spindle apparatus is associated with
A.extrafusal fibers.
B.tendons.
C.intrafusal fibers.
D.Golgi tendon organs.
Which of the following is a function of simple squamous epithelium?
A.protection
B.diffusion
C.distention
D.transport through ciliary action

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