Navigation » List of Schools » Prince George Community College » Biology » Bio 2050 – Anatomy and Physiology » Spring 2021 » Lecture Exam 3
Below are the questions for the exam with the choices of answers:
Question #1
A organ
B axon
C nerve cell
D bundle of macromolecules in nerve cells
E organelle in nerve cells
Question #2
A B, D, C, A, E
B D, B, C, E, A
C B, C, D, E, A
D D, B, E, A, C
Question #3
A All dendrites intact
B The neurosoma and at least some neurilemma intact
C At least the entire axon and neurilemma intact
D At least half the length of the fiber intact
E At least part of the neurosoma intact
Question #4
A Threshold is reached
B A local potential develops
C A resting membrane potential is established
D Repolarization of the membrane
E Hyperpolarization of the membrane
Question #5
A depolarizing
B reaching the threshold
C exiting the threshold
D repolarizing
E hyperpolarizing
Question #6
A Ependymal cells
B Oligodendrocytes
C Schwann cells
D Nodes of Ranvier
E Satellite cells
Question #7
A TRUE
B FALSE
Question #8
A TRUE
B FALSE
Question #9
A Permeability
B Secretion
C Excitablity
D Conductivity
Question #10
A potassium; EPSP
B chloride; IPSP
C sodium; IPSP
D calcium and sodium; IPSP
E calcium; IPSP
Question #11
A Depolarization of the membrane
B Threshold is reached
C The resting membrane potential is reinstated
D Hypopolarization of the membrane
E Hyperpolarization of the membrane
Question #12
A Central nervous system
B Visceral motor division
C Somatic sensory division
D Visceral sensory division
E Somatic motor division
Question #13
A Facilitated diffusion of sodium and potassium is faster in myelinated fibers.
B There are no internodes in unmyelinated fibers.
C There are more internodes in unmyelinated fibers.
D Diffusion of ions along the axoplasm is faster.
E Active transport of sodium and potassium is faster in myelinated fibers.
Question #14
A somatic motor
B visceral sensory
C somatic sensory
D visceral motor
E afferent
Question #15
A FALSE
B TRUE
Question #16
A It would hyperpolarize.
B It would become more positive.
C The RMP would be unaffected.
D It would become more negative.
Question #17
A TRUE
B FALSE
Question #18
A By diffusion
B Through co-transport
C Along microtubules
D Via cytoplasmic streaming
Question #19
A proteins
B polysaccharides
C glycoproteins
D carbohydrates
E lipids
Question #20
A Hyperpolarization of the plasma membrane
B Depolarization of the plasma membrane
C Repolarization of the plasma membrane
D Neutralization of the plasma membrane
E Drifting of the membrane potential towards the resting membrane potential
Question #21
A parasympathetic
B sensory afferent
C sympathetic
D motor afferent
E somatic motor
Question #22
A The Schwann cell
B The axon hillock
C The dendrites
D The axon
E The neurosoma
Question #23
A Potassium ions are leaving the cell
B Sodium ions are entering the cells
C Both sodium and potassium ions are leaving the cell
D Sodium ions are leaving the cell
E Potassium ions are entering the cell
Question #24
A A voltage change from 0 mV to +0.35 mV
B A voltage change from +35 mV to 0 mV
C A voltage change from -70 mV to -70.5 mV
D A voltage change from -70 mV to -69.5 mV
E A voltage change from -69.5 mV to -70 mV
Question #25
A Down the entire length of an unmyelinated fiber
B From node to node in myelinated fibers
C From node to node in unmyelinated fibers
D Down the entire length of a myelinated fiber
Question #26
A The axons
B The axon collaterals
C The dendrites
D The neurosomas
E The axon terminals
Question #27
A organ systems
B cells
C organs
D organelles
E tissues
Question #28
A they are released into the bloodstream before reaching the postsynaptic cell
B they alter the physiology of the postsynaptic cell
C they are released in response to stimulation
D they are synthesized by a presynaptic neuron
E they bind to specific receptors on the postsynaptic cell
Question #29
A chloride gates are fully open
B chloride gates are partially open
C sodium gates are fully open
D sodium gates are partially open
E potassium gates are fully open
Question #30
A recruitment
B neural summation
C spatial summation
D neuronal coding
E temporal summation
Question #31
A FALSE
B TRUE
Question #32
A An oligodendrocyte cells wraps its plasma membrane around each fiber as it does with myelinated fibers.
B A Schwann cell folds its plasma membrane around several fibers .
C A Schwann cells wraps its plasma membrane around each individual fiber as it does with myelinated fibers.
D Satellite cells cluster around each axon to form a pseudo-myelin sheath.
Question #33
A Enzymes in the postsynaptic cell break down some neurotransmitters.
B Neurotransmitters are no longer released.
C The axon terminal reabsorbs some neurotransmitters by endocytosis.
D Neurotransmitter escapes from the synapse into the nearby extracellular fluid.
E Synaptic vesicles secrete neurotransmitter by exocytosis.
Question #34
A The nervous system releases neurotransmitters between cells, while the endocrine system releases hormones into the blood.
B The nervous system releases neurotransmitters into the blood, while the endocrine system releases hormones between cells.
C The nervous system releases hormones between cells, while the endocrine system releases neurotransmitters into the blood.
D The nervous system releases hormones into the blood, while the endocrine system releases neurotransmitters between cells.
Question #35
A TRUE
B FALSE
Question #36
A FALSE
B TRUE
Question #37
A TRUE
B FALSE
Question #38
A Somatic receptor → efferent nerve fiber → afferent nerve fiber → interneuron → skeletal muscle
B Somatic receptor → afferent nerve fiber → interneuron → efferent nerve fiber → smooth muscle
C Somatic receptor → efferent nerve fiber → interneuron → afferent nerve fiber → skeletal muscle
D Somatic receptor → afferent nerve fiber → interneuron → efferent nerve fiber → skeletal muscle
Question #39
A pain receptors
B visceral receptors
C chemoreceptors
D nociceptors
E proprioceptors
Question #40
A TRUE
B FALSE
Question #41
A TRUE
B FALSE
Question #42
A anterior column
B posterior root ganglion
C posterior horn
D anterior horn
E posterior column
Question #43
A posterior root of a spinal nerve
B spinal nerve
C anterior root of a spinal nerve
D posterior horn
E anterior horn
Question #44
A FALSE
B TRUE
Question #45
A painful
B flexor (withdrawal)
C stretch
D tendon
E crossed extension
Question #46
A Touch
B Hearing
C Vision
D Taste
E Smell
Question #47
A 31
B 24
C 35
D 62
E 12
Question #48
A A fracture of vertebra T12
B A fracture of vertebra C6
C A fracture of vertebra L4
D A fracture of vertebra T5
E A fracture of vertebra C2
Question #49
A nerve; neurosomas
B nerve; axons
C nerve fiber; neurosomas
D nerve fiber; axons
E nerve fiber; nerves
Question #50
A Reflexes are responses to sensory inputs.
B Reflexes do not require a stimulus.
C Reflexes are not voluntary.
D Reflex responses are very predictable.
E Reflexes are quick responses of the nervous system.