Question 1

The division of the peripheral nervous system that carries signals to voluntary muscles is the

Accepted Answer

A)  somatic system.
B)  autonomic system.
C)  sympathetic system.
D)  parasympathetic system.
E)  None of the answers are correct.F) A) and D)
G) All of the above

Question 2

When you look at the water,which of the following is being activated?

Accepted Answer

A)  thermoreceptor
B)  pain receptor
C)  photoreceptor
D)  mechanoreceptor
E)  chemoreceptorF) A) and E)
G) C) and D)

Question 3

During an action potential,sodium ions enter into the cell.

Accepted Answer

A) True 
 B)False

Question 4

A receptor potential is a graded potential that occurs in a sensory receptor.

Accepted Answer

A) True 
 B)False

Question 5

The part of the brain that coordinates muscular movements is the

Accepted Answer

A)  cerebellum.
B)  hypothalamus.
C)  medulla oblongata.
D)  pons.
E)  cerebrum.F) B) and E)
G) C) and D)

Question 6

The layer of the wall of the eye that is modified into the cornea at the front of the eye is the

Accepted Answer

A)  choroid.
B)  retina.
C)  vitreous humor.
D)  sclera.
E)  aqueous humor.F) A) and B)
G) A) and E)

Question 7

The condition that develops when GABA levels in the brain are deficient is

Accepted Answer

A)  epilepsy.
B)  insomnia.
C)  Huntington disease.
D)  Alzheimer disease.
E)  Parkinson diseasE.F) A) and E)
G) C) and D)

Question 8

Which of the following is detected with the general senses?

Accepted Answer

A)  kissing someone you care for
B)  shaking hands with an acquaintance
C)  someone pinching your cheeks
D)  All answers are correct.
E)  your finger on a hot stoveF) A) and D)
G) A) and E)

Question 9

The three types of neurons in the nervous system of humans are

Accepted Answer

A)  interneurons,synaptic neurons,and neurogliA.
B)  synaptic neurons,motor neurons,and neuroglia.
C)  sensory neurons,interneurons,and motor neurons.
D)  interneurons,sensory neurons,and neuroglia.
E)  synaptic neurons,motor neurons,and sensory neurons.F) A) and D)
G) A) and C)

Question 10

Which of the following is NOT controlled by the nervous system?

Accepted Answer

A)  breathing
B)  heartbeat
C)  removing your hand from a hot surface
D)  removing your hand from a cold surface
E)  diffusion of water into cellsF) A) and C)
G) A) and E)

Question 11

If a person has been prescribed eyeglasses with concave lenses it is most likely to correct for that person

Accepted Answer

A)  having astigmatism.
B)  being farsighted.
C)  being cross-eyed.
D)  None of the answers are correct.
E)  being nearsighted.F) A) and C)
G) C) and D)

Question 12

Toxins produced by Clostridium botulinum (botulism toxin) block the release of acetylcholine from neurons.These toxins work by

Accepted Answer

A)  inhibiting synthesis of acetylcholine.
B)  triggering increased synthesis of acetylcholine.
C)  triggering increased exocytosis of vesicles containing acetylcholine.
D)  inhibiting exocytosis of vesicles containing acetylcholine.
E)  blocking diffusion of acetylcholine out through channel proteins.F) A) and C)
G) A) and D)

Question 13

A pheromone is a volatile chemical substance that elicits a specific response in members of a different species.

Accepted Answer

A) True 
 B)False

Question 14

An atom or molecule with an electrical charge is

Accepted Answer

A)  an isomer.
B)  an isotope.
C)  an ion.
D)  a neurotransmitter.
E)  an acid.F) A) and B)
G) C) and E)

Question 15

A cochlear implant uses a microphone to pick up sound,then a sound processor decomposes it into separate frequency components.Electrodes placed directly in the cochlea stimulate the parts of the auditory nerve corresponding to each frequency.A cochlear implant would bypass which of the following?

Accepted Answer

A)  the cochlea
B)  the eardrum
C)  the auditory nerve
D)  the auditory canal
E)  the outer earF) C) and E)
G) C) and D)

Question 16

If a neuron is at rest,the concentration of potassium ions is greatest outside the cell and the concentration of sodium ions is greatest inside the cell.

Accepted Answer

A) True 
 B)False

Question 17

The type of neuron that conducts its message from the central nervous system toward an effector is the

Accepted Answer

A)  synaptic neuron.
B)  interneuron.
C)  motor neuron.
D)  sensory neuron.
E)  neuroglia.F) B) and C)
G) B) and E)

Question 18

When you hear the waves,which of the following is being activated?

Accepted Answer

A)  mechanoreceptor
B)  thermoreceptor
C)  photoreceptor
D)  pain receptor
E)  chemoreceptorF) A) and C)
G) A) and B)

Question 19

A neuron recharges when

Accepted Answer

A)  Na+ ions are actively pumped against their concentration gradient.
B)  Na+ ions spontaneously move down their concentration gradient.
C)  Na+ ions spontaneously move against their concentration gradient.
D)  Na+ ions are actively pumped down their concentration gradient.E) All of the above
F) A) and D)

Question 20

The part of the neuron that is usually highly branched and receives input from other neurons is the

Accepted Answer

A)  dendrite.
B)  axon.
C)  synapse.
D)  cell body.
E)  myelin sheath.F) A) and C)
G) A) and B)

Exam 24: Nervous System and the Senses

If a person has been prescribed eyeglasses with concave lenses it is most likely to correct for that person

Correct AnswerverifiedShow Answer

A pheromone is a volatile chemical substance that elicits a specific response in members of a different species.

Correct AnswerverifiedShow Answer

The layer of the wall of the eye that is modified into the cornea at the front of the eye is the

Correct AnswerverifiedShow Answer

Toxins produced by Clostridium botulinum (botulism toxin) block the release of acetylcholine from neurons.These toxins work by

Correct AnswerverifiedShow Answer

A neuron recharges when

Correct AnswerverifiedShow Answer

The part of the brain that coordinates muscular movements is the

Correct AnswerverifiedShow Answer

The division of the peripheral nervous system that carries signals to voluntary muscles is the

Correct AnswerverifiedShow Answer

A receptor potential is a graded potential that occurs in a sensory receptor.

Correct AnswerverifiedShow Answer

When you look at the water,which of the following is being activated?

Correct AnswerverifiedShow Answer

A cochlear implant uses a microphone to pick up sound,then a sound processor decomposes it into separate frequency components.Electrodes placed directly in the cochlea stimulate the parts of the auditory nerve corresponding to each frequency.A cochlear implant would bypass which of the following?

Correct AnswerverifiedShow Answer

The type of neuron that conducts its message from the central nervous system toward an effector is the

Correct AnswerverifiedShow Answer

Which of the following is NOT controlled by the nervous system?

Correct AnswerverifiedShow Answer

When you hear the waves,which of the following is being activated?

Correct AnswerverifiedShow Answer

The part of the neuron that is usually highly branched and receives input from other neurons is the

Correct AnswerverifiedShow Answer

Which of the following is detected with the general senses?

Correct AnswerverifiedShow Answer

The condition that develops when GABA levels in the brain are deficient is

Correct AnswerverifiedShow Answer

During an action potential,sodium ions enter into the cell.

Correct AnswerverifiedShow Answer

The three types of neurons in the nervous system of humans are

Correct AnswerverifiedShow Answer

If a neuron is at rest,the concentration of potassium ions is greatest outside the cell and the concentration of sodium ions is greatest inside the cell.

Correct AnswerverifiedShow Answer

An atom or molecule with an electrical charge is

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified