Navigation » List of Schools » West Los Angeles College » Physiology » Physiology 101 – Introduction to Human Physiology » Fall 2020 » Lecture Exam 2 (A)
Below are the questions for the exam with the choices of answers:
Question #1
A adrenergic
B muscarinic
C nicotinic
Question #2
A Information from sensory receptorsreaches the cerebral cortex and the person becomes aware of it
B Persistence of the sensation of a limb even after it has been severed from the body
C Conversion of the energy of a stimulus into a pattern of electrical activity
D A depolarization of receptive membrane that increase in magnitude as the stimulus intensity increases
E A decrease in receptor sensitivity despite continuation of a stimulus
Question #3
A 1,3,2,6,5,9,10,4,8,7
B 1,4,8,7,3,2,5,6,9,10
C 1,3,2,5,7,6,8,4,9,10
D 1,4,7,8,3,2,6,5,9,10
Question #4
A pain
B Cold and warmth
C Pressure
D Vision
E Sound
F Proprioception
Question #5
A The concentration of sodium ion is greater inside the cell than outside.
B The plasma membrane is completely impermeable to potassium ions.
C The plasma membrane is completely impermeable to sodium ions.
D The permeability of the plasma membrane to potassium ions is much greater than its permeability to sodium ions.
E The plasma membrane is most permeable to sodium ions.
Question #6
A is a direct result of the opening of ligand-gated channels permeable to both Na + and K + ions in the pre-synaptic cell
B is a direct result of the opening of voltage-gated channels permeable to Na + ions in the post-synaptic cell
C stabilizes the membrane to remain at its resting potential.
D opens voltage-gated Ca 2+ channels in the presynaptic membrane.
E occurs when voltage-gated Cl- channels open in a postsynaptic cell membrane.
Question #7
A is found in the soma of the neuron
B is located in the axon hillock.
C is where action potentials are first generated.
D contains voltage-gated channels.
E contains ligand-gated channels
Question #8
A norepinephrine
B serotonin
C histamine
D acetylcholine
Question #9
A dopamine
B serotonin
C histamine
D acetylcholine
Question #10
A acetylcholine
B histamine
C norepinephrine
D serotonin
Question #11
A histamine
B norepinephrine
C dopamine
D acetylcholine
Question #12
A dopamine
B serotonin
C norepinephrine
D acetylcholine
Question #13
A frontal lobes of the cerebral cortex
B temporal lobes of the cerebral cortex
C occipital lobes of the cerebral cortex
D somatosensory cortex
E limbic system
Question #14
A It is not altered by changing concentration gradients of permeating ions.
B Only nerve and muscle cells have a potential difference across the membrane at rest.
C It requires ions to be distributed unevenly across the plasma membrane of a cell.
D in neurons, it is created mainly by potassium ion leakage
E It is oriented so that the cell’s interior is negative with respect to the extracellular fluid.
F It has the same value in all cells.
Question #15
A Both near and distance vision are fine, but changing back and forth between them becomes difficult
B Both near and distance vision are compromised
C No light will enter the eye and blindness will result
D Distance vision (e.g., reading a street sign)
E Near vision (e.g., reading a book)
Question #16
A photoreceptor
B parasympathetic
C parasympatic
D nociceptor
Question #17
A voluntary initiation of movement.
B control of breathing, circulation, and digestion.
C personality traits.
D final sensory perception
E language ability
F
Question #18
A Hypothalamus
B Pineal gland
C Mitochondria
D Pituitary gland
Question #19
A Deflection
B Reflection
C Refraction
D Retraction
Question #20
A The terminal ganglia contain muscarinic receptors.
B Terminal ganglia are the final common pathway for the autonomic nervous system.
C Terminal ganglia lie in a chain located along either side of the spinal cord.
D Terminal ganglia give rise to sympathetic neurons
E Long parasympathetic preganglionic fibers end at the terminal ganglia, which lie in or near the effector organ.
F the otic ganglia are found near the parotid gland
Question #21
A are found primarily in the heart.
B bind acetylcholine released from both sympathetic and parasympathetic postganglionic fibers.
C bind acetylcholine released from parasympathetic preganglionic fibers.
D bind with norepinephrine released from sympathetic postganglionic fibers.
E bind acetylcholine released from both sympathetic and parasympathetic preganglionic fibers.
Question #22
A TRUE
B FALSE
Question #23
A hyperopia.
B myopia.
C glaucoma.
D presbyopia.
E cataract.
Question #24
A transmit signals derived from afferent receptors up the spinal cord to the brain.
B are part of the peripheral nervous system.
C carry impulses from the CNS to the periphery.
D relay messages from the brain down to the spinal cord to efferent neurons.
E carry impulses from the periphery to the CNS.
Question #25
A Primary Auditory cortex
B Parietal lobe association area
C Occipital lobe association area
D Primary Visual cortex
E Somatosensory cortex
Question #26
A 3, 1, 4, 5, 2
B 1, 4, 3, 2, 5
C 1, 2, 3, 5, 4
D 5, 4, 3, 1, 2
E 2, 1, 5, 4, 3
Question #27
A TRUE
B FALSE
Question #28
A thermoreceptor
B mechanoreceptor
C chemoreceptor
D photoreceptor
Question #29
A is located in the axon hillock.
B contains voltage-gated channels.
C is where action potentials are first generated.
D is found in the soma of the neuron
E contains ligand-gated channels
Question #30
A contraction of the ciliary muscles.
B flatteningof the lens.
C activation of the sympathetic nervous system.
D dilation of the pupil.
E increased rounding of the cornea.
Question #31
A plays a role in emotional and behavioral patterns.
B controls thirst, urine output, and food intake.
C inhibits muscle tone throughout the body.
D functions as the body’s thermostat
E secretes hormones
F is a relay station for sensory input on its way to the cerebral cortex.
Question #32
A both pens are activating the same receptor.
B the receptors in both skin areas utilize the same afferent neuron.
C both sensations are grouped together in the somatosensory cortex.
D both afferent neurons converge on the same interneuron.
Question #33
A Mechanoreceptors
B Chemoreceptors
C Photoreceptors
D Proprioceptors
E Nociceptors
Question #34
A are replaced by cells known as basal cells.
B when stimulated send impulses both to the limbic system and to the cortex for perception of smell.
C bind chemicals called odorants
D are specialized endings of afferent neurons called chemoreceptors
Question #35
A nociceptor
B thermoreceptor
C chemoreceptor
D photoreceptor
Question #36
A nociceptor
B mechanoreceptor
C chemoreceptor
D thermoreceptor
Question #37
A photoreceptor
B thermoreceptor
C chemoreceptor
D nociceptor
Question #38
A chemoreceptor
B thermoreceptor
C mechanoreceptor
D photoreceptor
Question #39
A chemoreceptor
B thermoreceptor
C photoreceptor
D nociceptor
Question #40
A chemoreceptor
B thermoreceptor
C nociceptor
D photoreceptor
Question #41
A They sum excitatory and inhibitory synaptic inputs.
B They deliver synaptic input on other neurons.
C They make synapses on effector organs in the PNS.
D They can transmit information between afferent neurons and efferent neurons.
E They receive synaptic input from other neurons in the CNS.
Question #42
A are part of the blood-brain barrier.
B can take up excess neurotransmitters
C produce myelin
D are important in the repair of brain injuries and in neural scar formation.
E produce the CSF
F physically support neurons.
Question #43
A They can be graded and vary with stimulus strength.
B They generally occur at the axon hillock of afferent neurons.
C They propagate without decrement.
D They are action potentials.
E They always trigger action potentials.
Question #44
A be conducted to the axon hillock.
B cause a change in membrane potential.
C trigger an action potential.
D trigger an excitatory postsynaptic potential.
E depolarize a dendrite.
Question #45
A TRUE
B FALSE
Question #46
A activation of her parasympathetic nerves inhibits contraction of her ciliary muscles.
B activation of her parasympathetic nerves causes sudden contraction of her ciliary muscles.
C she suddenly develops presbyopia.
D activation of her sympathetic nerves inhibits contraction of her ciliary muscles.
E activation of her sympathetic nerves causes sudden contraction of her ciliary muscles.
Question #47
A They are found deep in the cerebrum, surrounding the thalamus.
B Their main input is sensory information arriving along neurons that project directly from the thalamus.
C They are all found in the parietal lobe of the cerebral cortex.
D They integrate multiple types of sensory information and are responsible for complex processing of sensory information.
E They are the cortical locations where primary sensory information first arrives from specific ascending pathways.
Question #48
A is comprised of lower motor neurons controlled by upper motor neurons arising from the motor cortex
B always results in muscle contraction
C is comprised of lower motor neurons controlled by local circuit neurons and upper motor neurons arising from the cerebellum
D is comprised of lower motor neurons controlled by local circuit neurons
E occurs in unmyelinated nerve fibers.
Question #49
A Na+ voltage-gated channels.
B Na+ leak channels
C K+ leak channels.
D Na+/K+ pumps.
Question #50
A There is an increase in neurotransmitter release from photoreceptor cells.
B The photoreceptor cell membranebecomes depolarized.
C The chromophore retinal undergoes a change of shape.
D The concentration of cyclic GMP inside cells increases.
E The photoreceptor cells are stimulated and fireaction potentials.
Question #51
A TRUE
B FALSE
Question #52
A increased fluid pressure against the cochlear duct by the fluid of the scala vestibuli
B the hairs of the receptor cells of the Organ of Corti to be bent
C displacement of the round window, which dissipates pressure in the cochlea.
D movement of the basilar membrane relative to the tectorial.
E movement of the tectorial membrane relative to the vestibular
Question #53
A substantia nigra
B cingulate gyrus
C mammilary body
D putamen
E caudate nucleus
F globus pallidus
Question #54
A 1,4,7,8,3,2,6,5,9,10
B 1,3,2,5,7,6,8,4,9,10
C 1,4,8,7,3,2,5,6,9,10
D 1,3,2,6,5,9,10,4,8,7
Question #55
A the posterior column
B lateral corticospinal tract
C medial leminscus tract
D spinocerebellar tract
E anterior spinothalmic tract
Question #56
A lens
B iris
C cornea
D ciliary muscle
E retina
Question #57
A The depolarization phase of the action potential
B The graded potential
C The exocytosis of neurotransmitter
D All of these will not occur
E The repolarization phase of the action potential
Question #58
A The image of an object that is focused on the retina is upside down relative to the object’s actual position in space.
B Cataract is an increase in opacity (clouding) of the lens.
C Myopia is a condition in which the lens focuses light from distant objects behind the retina.
D The cornea refracts light rays more strongly than the lens.
E Presbyopia is a condition in which the lens cannot accommodate adequately for near vision.
Question #59
A spinal nerves are for the conduction of motor information only
B the ventral root contains axons of afferent, sensory neurons
C afferent, sensory neurons are unipolar neurons with cell bodies located in the dorsal root ganglion
D the dorsal root conducts motor information
Question #60
A their activity is influenced by upper motor neurons
B they can excite or inhibit skeletal muscles
C they are part of the final common pathway
D they exit from the anterior gray horn
E they are also known as somatic motor neurons
F they secrete dopamine
Question #61
A It maintains an electrical gradient at the equilibrium potential of K +.
B It pumps 3 Na + ions into the cell for every 2 K + ions it pumps out.
C It maintains a concentration gradient for K + such that diffusion forces favor movement of K + into the cell.
D It generates a small electrical potential such that the inside of a neuron is made negative with respect to the outside.
E It transports equal numbers of sodium and potassium ions with each pump cycle.
Question #62
A Black, White
B White, Gray
C Gray, White
D Brown, Gray