Midterm Review Clicker Flashcards

1
Q

Damage or injury to which nerve is often
associated with radiating leg and pack pain?

A. Radial Nerve
B. Femoral Nerve
C. Sciatic Nerve
D. Phrenic Nerve

A

C. Sciatic Nerve

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2
Q

In the nervous system, ganglion:nucleus as?

A. tract:nerve
B. nerve:tract
C. soma:axon
D. axon:soma

A

A. tract:nerve

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3
Q

Do G-proteins stimulate or inhibit effector
proteins?

A. G-proteins only stimulate effector proteins
B. G-proteins only inhibit effector proteins
C. G-proteins neither stimulate nor inhibit effector proteins
D. G-proteins either stimulate or inhibit effector proteins

A

D. G-proteins either stimulate or inhibit effector proteins

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4
Q

This branched portion of a spinal nerve forms
a network called a plexus that serves muscles and skin in upper and lower limbs:

A. Posterior ramus
B. Anterior ramus
C. Meningeal branch
D. Posterior root
E. Anterior root

A

B. Anterior ramus

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5
Q

In an electrical synapse, an excitatory signal
in the presynaptic cell results in an inhibitory
response in the postsynaptic cell.
True or False?

A. True
B. False

A

B. False

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6
Q

Match Lobes of Cerebrum to
Primary Function:

  1. Frontal
  2. Temporal
  3. Parietal
  4. Occipital

A. Auditory
B. Visual
C. Somatosensory
D. Motor

A
  1. Frontal - D. Motor
  2. Temporal - A. Auditory
  3. Parietal - C. Somatosensory
  4. Occipital - B. Visual
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7
Q

What of the following activates the alpha subunit of a trimeric G-Protein?

A. GTP binding
B. GTP hydrolyzed to GDP
C. Phosphodiesterase
D. Ligand binding to ionotropic receptors

A

A. GTP binding

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8
Q

Match Neurotransmitter to Precursor Molecule:

  1. Dopamine
  2. Acetylcholine
  3. Norepinepherine
  4. ATP
  5. Serotonin

A. Tyrosine
B. Tryptophan
C. Acetyl-CoA
D. Adenine

A
  1. Dopamine - A. Tyrosine
  2. Acetylcholine - C. Acetyl-CoA
  3. Norepinephrine - A. Tyrosine
  4. ATP - D. Adenine
  5. Serotonin - B. Tryptophan
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9
Q

Which describes the “shortcut pathway” of
neurotransmitter-induced cellular response?

A. NT binds to a metabotropic receptor, and the g-protein activates and opens an ion channel
B. NT binds to an ionotropic receptor, which opens an ion channel immediately
C. NT binds to a metabotropic receptor, and the g-protein activates adenylyl cyclase
D. NT binds to a metabotropic receptor, and the g-protein deactivates adenylyl cyclase

A

B. NT binds to an ionotropic receptor, which opens an ion channel immediately

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10
Q

This spinal cord structure contains only the axons of motor neurons in the anterior horn that conduct nerve impulses from the CNS to effectors (such as muscles and glands):

A. Lateral column
B. Ventral horn
C. Anterior root
D. Posterior root
E. Central Canal

A

C. Anterior root

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11
Q

A change in membrane potential from -70 to
-60mV is a(n):

A. Depolarizing graded potential.
B. IPSC.
C. Hyperpolarizing graded potential.
D. Action potential threshold.
E. Supra-threshold stimulus

A

A. Depolarizing graded potential.

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12
Q

This region of the brain contains the cardiovascular center and the respiratory centers:

A. Midbrain
B. Thalamus
C. Pons
D. Medulla oblongata
E. Cerebrum

A

D. Medulla oblongata

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13
Q

Which of the following is a cys-loop receptor?

A. iGluR
B. nAChR
C. mGluR
D. P2X

A

B. nAChR

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14
Q

The Nernst equation is a mathematical formula that:

A. demonstrates K+ is more concentrated on the inside, and Na+
and Ca2+ more concentrated on the outside of the cell
membrane.
B. takes into consideration the relative driving force acting on
multiple ions.
C. calculates the permeability and direction of current flow at a
given membrane voltage.
D. determines the equilibrium potential for a particular ion.

A

D. determines the equilibrium potential for a particular ion.

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15
Q

Gray matter contains ______________, while white matter is made up of ______________.

A.Somatic cells; Neurons
B.Glial cells; Dendrites
C.Cell bodies; Myelinated axons
D.Neurons; Glia
E.Glia; Neurons

A

C. Cell bodies; Myelinated axons

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16
Q

Which of the following is NOT an example of a mixed nerve?

A. Spinal nerves
B. Trigeminal nerve (V)
C. Facial nerve (VII)
D. Vagus nerve (X)
E. None; all of the above are mixed nerves.

A

E. None; all of the above are mixed nerves.

17
Q

What is a mixed nerve?

A

A nerve that has both Sensory and Motor Functions

18
Q

Which of the neurotransmitter receptors listed below is a metabotropic GPCR?

A. GlyR
B. AMPA receptor
C. NMDA receptor
D. mAChR
E. nAChR

A

D. mAChR

19
Q

Which of the statements below describe(s) an electrical synapse?

A. Transmits information unidirectionally
B. Sub-millisecond transmission
C. Non-selective to ions
D. All of the above
E. B and C above

A

E. B and C above

20
Q

In the CNS, which type of synapse is most likely to be excitatory?

A. Axo-dendritic
B. Axo-axonic
C. Axo-somatic
D. Axo-synaptic
E. All are equally likely to be excitatory

A

Class: A. Axo-dendritic
GPT: C. Axo-somatic

21
Q

A patient comes to the ER with a leg injury resulting in foot drop. Which nerve is likely damaged?

  • A) Phrenic nerve
  • B) Radial nerve
  • C) Sciatic nerve
  • D) Femoral nerve
A

C. damage to the common fibular portion of the sciatic nerve