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

Psych 66024

July 19, 2017
_______ refer to muscle contractions that produce a shortening muscle with a constant
contraction strength at a given load.
A. Treppe contractions
B. Isotonic contractions
C. Twitch contractions
D. Isometric contractions
Stimulation of the hair cells of the vestibular apparatus sends impulses to the
cerebellum and _________ by way of the vestibulocochlear nerve.
A.cerebrum
B.midbrain
C.pons
D.medulla oblongata
Visual reflexes would be impaired by damage to the
A. superior colliculi.
B. inferior colliculi.
C. red nucleus.
D. medial geniculate nuclei.
Channels present in the membranes of some cells that allow rapid movement of water
are called
A. water tubes.
B. aqueducts.
C. aquaporins.
D. streams.
The folded inner membrane of a mitochondrion is called
A. rugae.
B. plicae.
C. cristae.
D. microvilli.
Excess use of antibiotics can kill the normal intestinal microflora, increasing
inflammation by pathogenic bacteria.
Ion channels that can be opened by physiological stimuli are said to be
A. polar.
B. aquaporins.
C. hypertonic.
D. gated.
Fetal neuron growth requires the actions of a group of chemicals known as
A. endorphins.
B. synapsins.
C. neurotrophins.
D. glutamates.
C5 through C9 from the ______, creates a hole in the cell that permits fluid influx and
lysis.
A.classical pathway
B.activation sequence
C.membrane attack complex
D.recognition complex
To mobilize calcium from bone, osteoclasts bind to bone and transport ________ into
the bone matrix to dissolve calcium.
A.phosphate
B.calcitonin
C.PTH
D.H+
The _______________ nephrons play an important role in producing concentrated
urine.
A.juxtamedullary
B.cortical
C.pelvic
D.calical
An integrating center sends information to a(n)
A. sensor.
B. effector.
C. brain region.
D. thermostat.
___________ g of sucrose (molecular weight = 342g) would be added to 1L of water to
produce a 2.5 Osm solution.
A. 342
B. 500
C. 855
D. 2.5
The process of tissue death in which cells swell, rupture their membranes, and burst is
called
A. apoptosis.
B. phagocytosis.
C. necrosis.
D. transcytosis.
Blocking the _____ receptor on helper T lymphocytes may inhibit activation by antigen
presenting cells.
A.CD25
B.CD4
C.MHC
D.IL-6
Where do the fibers of the spinothalamic tracts 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
Damage to cranial nerve _____________ would limit the ability to taste sweet
substances.
A.VII
B.V
C.X
D.XII
What is formed following ovulation from the empty follicle due to LH influence?
A.macula lutea
B.corpus luteum
C.fibroids
D.Graafian follicle
Mirror neurons are found in the frontal lobe, parietal lobe, and Broca's motor speech
area; and are connected to the limbic system through the insula.
Somatostatin is produced in the stomach by
A.goblet cells.
B.parietal cells.
C.G cells.
D.D cells.
Dialysis uses the process of
A. facilitated diffusion.
B. primary active transport.
C. simple diffusion.
D. secondary active transport.
Epinephrine is a
A. sympathetic neurotransmitter.
B. parasympathetic neurotransmitter.
C. sympathomimetic hormone.
D. All apply.
Gustducin
A. is an olfactory G-protein.
B. is related to transducin of the eye.
C. activates second-messenger systems that hyperpolarize the receptor cell.
D. All apply.
Which of the following are NOT signs of decreased leptin secretion?
A.decline in helper T abilities
B.delayed onset of puberty
C.menstrual abnormalities
D.increased hunger
Which of the following is NOT an action needed for glutamate to open ion channels?
A. NMDA receptor must bind to glycine
B. the membrane must be partially depolarized from the action of a different
neurotransmitter
C. Cl- must pass through the open channel
D. Mg2+ is released from NMDA channel to open it
All of the following have an enterohepatic circulation EXCEPT
A.penicillin.
B.cholesterol.
C.tetracycline.
D.bilirubin.
Chemical synapses
A. have a delayed impulse transmission.
B. utilize gap junctions.
C. occur when two nerve cells are in direct contact with each other.
D. do not require the release of neurotransmitters.
The tendency of the lungs to return to their initial size after stretching is
A.compliance.
B.elasticity.
C.surface tension.
D.None of the choices are correct.
Excitatory postsynaptic potentials are produced by
A. glycine.
B. glutamic acid.
C. gamma-aminobutyric acid.
D. benzodiazepines.
Inhibition of the functions of the descending limb of the loop of Henle would stimulate
A.decreased water reabsorption.
B.increased Na+ reasbsorption.
C.decreased Na+ reabsorption.
D.increased water reabsorption.
________________ are liver synthesized derivatives of free fatty acids that can be used
as an immediate source of energy by many organs.
A.Glycerols
B.Ketone bodies
C.Steroids
D.Cholesterols

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