Navigation » List of Schools » West Los Angeles College » Physiology » Physiology 101 – Introduction to Human Physiology » Fall 2020 » Lecture Exam 2(C)
Below are the questions for the exam with the choices of answers:
Question #1
A myopia.
B glaucoma.
C hyperopia.
D presbyopia.
E cataract.
Question #2
A activation of the sympathetic nervous system.
B flatteningof the lens.
C increased rounding of the cornea.
D contraction of the ciliary muscles.
E dilation of the pupil.
Question #3
A Pressure
B Cold and warmth
C pain
D Proprioception
E Sound
F Vision
Question #4
A activation of her sympathetic nerves inhibits contraction of her ciliary muscles.
B activation of her sympathetic nerves causes sudden contraction of her ciliary muscles.
C she suddenly develops presbyopia.
D activation of her parasympathetic nerves inhibits contraction of her ciliary muscles.
E activation of her parasympathetic nerves causes sudden contraction of her ciliary muscles.
Question #5
A contains ligand-gated channels
B is found in the soma of the neuron
C contains voltage-gated channels.
D is located in the axon hillock.
E is where action potentials are first generated.
Question #6
A The term “sensory unit” refers to a group of receptors that receive a particular stimulus and the afferent neuron associated with those receptors.
B Sensory information that leads to conscious awareness of the stimulus is called transduction.
C Some sensory receptors are modifications of the peripheral endings of efferent neurons.
D All sensory information that reaches the brain can be experienced as a conscious sensation.
E The term “adequate stimulus” means that a stimulus is strong enough to be detected.
Question #7
A mechanoreceptor
B chemoreceptor
C thermoreceptor
D photoreceptor
Question #8
A 1,3,2,5,7,6,8,4,9,10
B 1,4,8,7,3,2,5,6,9,10
C 1,3,2,6,5,9,10,4,8,7
D 1,4,7,8,3,2,6,5,9,10
Question #9
A Parietal lobe association area
B Primary Visual cortex
C Primary Auditory cortex
D Somatosensory cortex
E Occipital lobe association area
Question #10
A functions as the body’s thermostat
B inhibits muscle tone throughout the body.
C controls thirst, urine output, and food intake.
D secretes hormones
E plays a role in emotional and behavioral patterns.
F is a relay station for sensory input on its way to the cerebral cortex.
Question #11
A TRUE
B FALSE
Question #12
A FALSE
B TRUE
Question #13
A 1, 4, 3, 2, 5
B 2, 1, 5, 4, 3
C 1, 2, 3, 5, 4
D 5, 4, 3, 1, 2
E 3, 1, 4, 5, 2
Question #14
A They are the cortical locations where primary sensory information first arrives from specific ascending pathways.
B They are all found in the parietal lobe of the cerebral cortex.
C Their main input is sensory information arriving along neurons that project directly from the thalamus.
D They integrate multiple types of sensory information and are responsible for complex processing of sensory information.
E They are found deep in the cerebrum, surrounding the thalamus.
Question #15
A histamine
B acetylcholine
C serotonin
D norepinephrine
Question #16
A dopamine
B acetylcholine
C histamine
D serotonin
Question #17
A serotonin
B histamine
C norepinephrine
D acetylcholine
Question #18
A histamine
B norepinephrine
C dopamine
D acetylcholine
Question #19
A norepinephrine
B acetylcholine
C dopamine
D serotonin
Question #20
A relay messages from the brain down to the spinal cord to efferent neurons.
B are part of the peripheral nervous system.
C carry impulses from the CNS to the periphery.
D transmit signals derived from afferent receptors up the spinal cord to the brain.
E carry impulses from the periphery to the CNS.
Question #21
A They make synapses on effector organs in the PNS.
B They deliver synaptic input on other neurons.
C They can transmit information between afferent neurons and efferent neurons.
D They receive synaptic input from other neurons in the CNS.
E They sum excitatory and inhibitory synaptic inputs.
Question #22
A They always trigger action potentials.
B They generally occur at the axon hillock of afferent neurons.
C They can be graded and vary with stimulus strength.
D They propagate without decrement.
E They are action potentials.
Question #23
A It maintains an electrical gradient at the equilibrium potential of K +.
B It maintains a concentration gradient for K + such that diffusion forces favor movement of K + into the cell.
C It transports equal numbers of sodium and potassium ions with each pump cycle.
D It pumps 3 Na + ions into the cell for every 2 K + ions it pumps out.
E It generates a small electrical potential such that the inside of a neuron is made negative with respect to the outside.
Question #24
A bind chemicals called odorants
B when stimulated send impulses both to the limbic system and to the cortex for perception of smell.
C are replaced by cells known as basal cells.
D are specialized endings of afferent neurons called chemoreceptors
Question #25
A The concentration of sodium ion is greater inside the cell than outside.
B The plasma membrane is most permeable to sodium ions.
C The permeability of the plasma membrane to potassium ions is much greater than its permeability to sodium ions.
D The plasma membrane is completely impermeable to potassium ions.
E The plasma membrane is completely impermeable to sodium ions.
Question #26
A trigger an action potential.
B cause a change in membrane potential.
C be conducted to the axon hillock.
D trigger an excitatory postsynaptic potential.
E depolarize a dendrite.
Question #27
A A depolarization of receptive membrane that increase in magnitude as the stimulus intensity increases
B Information from sensory receptorsreaches the cerebral cortex and the person becomes aware of it
C Persistence of the sensation of a limb even after it has been severed from the body
D Conversion of the energy of a stimulus into a pattern of electrical activity
E A decrease in receptor sensitivity despite continuation of a stimulus
Question #28
A decreased depolarization of the photoreceptor’s plasma membrane
B increased neurotransmitter release from the synaptic terminal of the photoreceptor.
C closure of Na+ channels and decreased Na+ flow into the photoreceptor
D bleaching of opsin.
E excitation of bipolar cells
Question #29
A Deflection
B Refraction
C Retraction
D Reflection
Question #30
A in neurons, it is created mainly by potassium ion leakage
B It requires ions to be distributed unevenly across the plasma membrane of a cell.
C It is oriented so that the cell’s interior is negative with respect to the extracellular fluid.
D It has the same value in all cells.
E Only nerve and muscle cells have a potential difference across the membrane at rest.
F It is not altered by changing concentration gradients of permeating ions.
Question #31
A somatic, catalyst
B horizontal, inner
C bipolar, ganglion
Question #32
A the hairs of the receptor cells of the Organ of Corti to be bent
B movement of the tectorial membrane relative to the vestibular
C increased fluid pressure against the cochlear duct by the fluid of the scala vestibuli
D displacement of the round window, which dissipates pressure in the cochlea.
E movement of the basilar membrane relative to the tectorial.
Question #33
A Pineal gland
B Pituitary gland
C Mitochondria
D Hypothalamus
Question #34
A The exocytosis of neurotransmitter
B The graded potential
C The repolarization phase of the action potential
D The depolarization phase of the action potential
E All of these will not occur
Question #35
A All of the answer choices are correct.
B Chemoreceptors can activate heat sensing parts of the brain.
C The breakdown of chemicals within the pepper causes exothermic reactions in the mouth.
D A chemical within the jalepeño acts as a stimulus for thermoreceptors.
E Friction while chewing activates thermoreceptors.
Question #36
A FALSE
B TRUE
Question #37
A Na+ voltage-gated channels.
B Na+/K+ pumps.
C Na+ leak channels
D K+ leak channels.
Question #38
A temporal lobes of the cerebral cortex
B somatosensory cortex
C occipital lobes of the cerebral cortex
D limbic system
E frontal lobes of the cerebral cortex
Question #39
A FALSE
B TRUE
Question #40
A the receptors in both skin areas utilize the same afferent neuron.
B both pens are activating the same receptor.
C both sensations are grouped together in the somatosensory cortex.
D both afferent neurons converge on the same interneuron.
Question #41
A TRUE
B FALSE
Question #42
A The patient would perceive a specific, localized sensation in one body area.
B The patient would perceive a general sensation all over the body.
C The patient would perceive a general sensation over one side of the body.
D The patient would perceive nothing.
Question #43
A Loss of both pressure sense and pain in the right foot
B Loss of pain in the right foot
C Loss of pain in the left foot
Question #44
A equal to the equilibrium potential for sodium.
B equal to the equilibrium potential for potassium.
C more positive than the equilibrium potential for sodium.
D slightly more negative than the equilibrium potential of potassium ion.
E more positive than the equilibrium potential for potassium.
Question #45
A adrenergic
B nicotinic
C muscarinic
Question #46
A thermoreceptor
B nociceptor
C photoreceptor
D chemoreceptor
Question #47
A nociceptor
B thermoreceptor
C chemoreceptor
D mechanoreceptor
Question #48
A chemoreceptor
B nociceptor
C thermoreceptor
D photoreceptor
Question #49
A photoreceptor
B mechanoreceptor
C thermoreceptor
D chemoreceptor
Question #50
A thermoreceptor
B photoreceptor
C nociceptor
D chemoreceptor
Question #51
A photoreceptor
B nociceptor
C thermoreceptor
D chemoreceptor
Question #52
A the otic ganglia are found near the parotid gland
B Terminal ganglia give rise to sympathetic neurons
C The terminal ganglia contain muscarinic receptors.
D Long parasympathetic preganglionic fibers end at the terminal ganglia, which lie in or near the effector organ.
E Terminal ganglia lie in a chain located along either side of the spinal cord.
F Terminal ganglia are the final common pathway for the autonomic nervous system.
Question #53
A final sensory perception
B language ability
C control of breathing, circulation, and digestion.
D voluntary initiation of movement.
E personality traits.
F
Question #54
A are found primarily in the heart.
B bind acetylcholine released from parasympathetic preganglionic fibers.
C bind acetylcholine released from both sympathetic and parasympathetic postganglionic fibers.
D bind with norepinephrine released from sympathetic postganglionic fibers.
E bind acetylcholine released from both sympathetic and parasympathetic preganglionic fibers.
Question #55
A mammilary body
B putamen
C caudate nucleus
D globus pallidus
E cingulate gyrus
F substantia nigra
Question #56
A afferent, sensory neurons are unipolar neurons with cell bodies located in the dorsal root ganglion
B the ventral root contains axons of afferent, sensory neurons
C the dorsal root conducts motor information
D spinal nerves are for the conduction of motor information only
Question #57
A cingulate gyrus.
B amygdala.
C mammillary body.
D primary visual cortex
E hippocampus.
F olfactory bulb
Question #58
A stabilizes the membrane to remain at its resting potential.
B is a direct result of the opening of voltage-gated channels permeable to Na + ions in the post-synaptic cell
C occurs when voltage-gated Cl- channels open in a postsynaptic cell membrane.
D opens voltage-gated Ca 2+ channels in the presynaptic membrane.
E is a direct result of the opening of ligand-gated channels permeable to both Na + and K + ions in the pre-synaptic cell
Question #59
A There are normally four different photopigments in the retina.
B There are four different opsins in the retina.
C There are four different chromophore moleculesin the retina.
D Photoreceptors are neurons.
E There are two basic types of photoreceptors in the retina, rods, and cones.
Question #60
A parasympathetic
B parassympathetic
C assympathetic
D sympathetic
Question #61
A The photoreceptor cells are stimulated and fireaction potentials.
B The concentration of cyclic GMP inside cells increases.
C The chromophore retinal undergoes a change of shape.
D The photoreceptor cell membranebecomes depolarized.
E There is an increase in neurotransmitter release from photoreceptor cells.
Question #62
A lateral corticospinal tract
B anterior spinothalmic tract
C spinocerebellar tract
D medial leminscus tract
E the posterior column
Question #63
A is comprised of lower motor neurons controlled by local circuit neurons
B always results in muscle contraction
C occurs in unmyelinated nerve fibers.
D is comprised of lower motor neurons controlled by upper motor neurons arising from the motor cortex
E is comprised of lower motor neurons controlled by local circuit neurons and upper motor neurons arising from the cerebellum
Question #64
A gamma motor neurons
B lower motor neurons
C nictonic motor neurons
D upper motor neurons
E delta motor neurons
Question #65
A 1, 4, 2, 3, 5, 6, 9, 8, 7
B 1, 4, 7, 2, 3, 9, 6, 5, 8
C 1, 4, 7, 2, 3, 6, 9, 8, 5
D 1, 7, 4, 6, 3, 2, 9, 8, 5
Question #66
A Gray, White
B White, Gray
C Brown, Gray
D Black, White
Question #67
A ciliary muscle
B iris
C retina
D cornea
E lens
Question #68
A Distance vision (e.g., reading a street sign)
B Both near and distance vision are fine, but changing back and forth between them becomes difficult
C Near vision (e.g., reading a book)
D Both near and distance vision are compromised
E No light will enter the eye and blindness will result