Question 1

How do sensory cells communicate different types of information to the brain-touch versus light for example?

Accepted Answer

A)  by firing action potentials at different frequencies in the same neuron
B)  by firing action potentials of varying amplitudes in the same neuron
C)  by using different neurons for different stimuli (e.g. ,light and touch) 
D)  by using different kinds of electrical signals in the same neuron as the information is conveyed to the brain
E)  by using different kinds of receptor potentials in the same neuronF) A) and D)
G) A) and E)

Question 2

Where do you predict that the highest density of mechanoreceptors in the skin would be located?

Accepted Answer

A)  in the hands and face
B)  at the joints of the the limbs
C)  on the dorsal side of the body
D)  on the soles of the feetE) B) and C)
F) All of the above

Question 3

Rods and cones,like most sensory receptors,depolarize opon receiving a stimulus.

Accepted Answer

A) True 
 B)False

Question 4

Experimenters replaced the statoliths in a crayfish statocyst with iron filings and then held a magnet above the animal.Based on your knowledge of the function of statoliths,what would they observe?

Accepted Answer

A)  The crayfish stayed upright.
B)  The crayfish lay on its side.
C)  The crayfish turned upside down.
D)  The crayfish attempted to escape by rapidly swimming backwards.
E)  None of these choices are correct.F) A) and D)
G) C) and D)

Question 5

After reaching the inner ear,the frequency of a sound primarily affects

Accepted Answer

A)  the amplitude of basilar membrane vibration.
B)  the location of the greatest basilar membrane vibration.
C)  the vibrational amplitude of the tectorial membrane.D) B) and C)
E) A) and C)

Question 6

Death of hair cells resulting from repeated exposure to loud noises is thought to be caused by metabolic "exhaustion" of these cells from continuous activation.

Accepted Answer

A) True 
 B)False

Question 7

A high-pitched sound is characterized by

Accepted Answer

A)  a short wavelength and high frequency.
B)  a short wavelength and low frequency.
C)  a long wavelength and high frequency.
D)  a long wavelength and low frequency.
E)  a very long wavelength and very low frequency.F) B) and C)
G) C) and D)

Question 8

Our ability to respond to moderate heat and cold is due to

Accepted Answer

A)  mechanoreceptors.
B)  thermoreceptors.
C)  nociceptors.
D)  electromagnetic receptors.
E)  chemoreceptors.F) A) and E)
G) A) and D)

Question 9

Perception of salty tastes occurs at the level of the taste bud.

Accepted Answer

A) True 
 B)False

Question 10

The tough outer covering of the eye is referred to as the

Accepted Answer

A)  pupil.
B)  retina.
C)  sclera.
D)  fovea.
E)  iris.F) B) and E)
G) A) and B)

Question 11

After a young woman suffered a traumatic brain injury,she seemed clumsy and out-of-sorts.She was given a visual acuity test (the assessment for glasses) and general eye health exam,and her eyes were deemed healthy.Would these assessments be adequate to rule out any visual impairment resulting from the brain trauma?

Accepted Answer

A)   Yes,her clumsiness is more likely attributable to inner ear damage.
B)   No,a neurological examination of her visual processing pathways would be necessary.C) A) and B)
D) undefined

Question 12

Where does perception of sensory stimuli occur?

Accepted Answer

A)  in all receptors
B)  in highly specialized receptors like hair cells
C)  at synapses in the peripheral nervous system
D)  only in the central nervous systemE) All of the above
F) B) and C)

Question 13

Odor molecule receptors are located on the _____________ extending from olfactory receptor cells in the human nose.

Accepted Answer

A)  axon
B)  soma
C)  cilia
D)  synapse
E)  oligodendrocyteF) A) and C)
G) D) and E)

Question 14

When flying on a plane,traveling at 500 miles per hour,why does your vestibular system not register the extremely fast linear motion?

Accepted Answer

A)  Since you are inside the plane,the fast motion of the plane does not translate to your inner ear.
B)  Since you are moving at a constant rate of speed,the fluid in your inner ear isn't moving and bending the stereocilia.
C)  Since you are in a pressurized cabin,the speed of the plane doesn't affect the semicircular canals,only the pressure in the inner ear.
D)  Your hair cells adapt to the constant fluid movement inside the semicircular canals and cease sending action potentials.E) B) and C)
F) A) and B)

Question 15

The most common defect in color vision,termed red-green color blindness,results from a faulty opsin gene.

Accepted Answer

A) True 
 B)False

Question 16

When light strikes the rod cell,it becomes ____ and glutamate release onto bipolar cells ____.

Accepted Answer

A)  depolarized;decreases
B)  depolarized;increases
C)  hyperpolarized;decreases
D)  hyperpolarized;increases
E)  excited;increasesF) B) and C)
G) C) and D)

Question 17

The olfactory receptors discovered by Richard Axel and Linda Buck are members of a large family of similar receptor molecules termed

Accepted Answer

A)  G-protein coupled receptors.
B)  ligand-gated ion channels.
C)  voltage-gated ion channels.
D)  intracellular receptors.
E)  serine/threonine proteases.F) All of the above
G) None of the above

Question 18

Upon emerging from a darkened area like a movie theater during daylight,our eyes are initially extremely sensitive to light.This is because

Accepted Answer

A)  our pupils are wide open and take some time to close.
B)  the proportion of our retinal in the cis conformation is high.
C)  the proportion of our retinal in the trans conformation is high.
D)  our rods and cones are already highly hyperpolarized from the previous dark conditions.
E)  All of the answers are correct.F) A) and D)
G) C) and E)

Question 19

Olfactory neurons first transmit their action potential to the central nervous system structure called the

Accepted Answer

A)  cerebellum.
B)  accessory olfactory bulB.
C)  amygdala.
D)  cerebral cortex.
E)  olfactory bulb.F) A) and E)
G) A) and D)

Exam 33: Neuroscience II: Sensory Systems

How do sensory cells communicate different types of information to the brain-touch versus light for example?

Correct Answer
verified

After reaching the inner ear,the frequency of a sound primarily affects

Correct Answer
verified

Upon emerging from a darkened area like a movie theater during daylight,our eyes are initially extremely sensitive to light.This is because

Correct Answer
verified

When light strikes the rod cell,it becomes and glutamate release onto bipolar cells .

Correct Answer
verified

Where does perception of sensory stimuli occur?

Correct Answer
verified

Odor molecule receptors are located on the _____________ extending from olfactory receptor cells in the human nose.

Correct Answer
verified

The most common defect in color vision,termed red-green color blindness,results from a faulty opsin gene.

Correct Answer
verified

Olfactory neurons first transmit their action potential to the central nervous system structure called the

Correct Answer
verified

Experimenters replaced the statoliths in a crayfish statocyst with iron filings and then held a magnet above the animal.Based on your knowledge of the function of statoliths,what would they observe?

Correct Answer
verified

Perception of salty tastes occurs at the level of the taste bud.

Correct Answer
verified

Our ability to respond to moderate heat and cold is due to

Correct Answer
verified

The tough outer covering of the eye is referred to as the

Correct Answer
verified

When flying on a plane,traveling at 500 miles per hour,why does your vestibular system not register the extremely fast linear motion?

Correct Answer
verified

A high-pitched sound is characterized by

Correct Answer
verified

Correct Answer
verified

Rods and cones,like most sensory receptors,depolarize opon receiving a stimulus.

Correct Answer
verified

The olfactory receptors discovered by Richard Axel and Linda Buck are members of a large family of similar receptor molecules termed

Correct Answer
verified

Death of hair cells resulting from repeated exposure to loud noises is thought to be caused by metabolic "exhaustion" of these cells from continuous activation.

Correct Answer
verified

Where do you predict that the highest density of mechanoreceptors in the skin would be located?

Correct Answer
verified

Exam 33: Neuroscience II: Sensory Systems

How do sensory cells communicate different types of information to the brain-touch versus light for example?

Correct AnswerverifiedShow Answer

After reaching the inner ear,the frequency of a sound primarily affects

Correct AnswerverifiedShow Answer

Upon emerging from a darkened area like a movie theater during daylight,our eyes are initially extremely sensitive to light.This is because

Correct AnswerverifiedShow Answer

When light strikes the rod cell,it becomes ____ and glutamate release onto bipolar cells ____.

Correct AnswerverifiedShow Answer

Where does perception of sensory stimuli occur?

Correct AnswerverifiedShow Answer

Odor molecule receptors are located on the _____________ extending from olfactory receptor cells in the human nose.

Correct AnswerverifiedShow Answer

The most common defect in color vision,termed red-green color blindness,results from a faulty opsin gene.

Correct AnswerverifiedShow Answer

Olfactory neurons first transmit their action potential to the central nervous system structure called the

Correct AnswerverifiedShow Answer

Experimenters replaced the statoliths in a crayfish statocyst with iron filings and then held a magnet above the animal.Based on your knowledge of the function of statoliths,what would they observe?

Correct AnswerverifiedShow Answer

Perception of salty tastes occurs at the level of the taste bud.

Correct AnswerverifiedShow Answer

Our ability to respond to moderate heat and cold is due to

Correct AnswerverifiedShow Answer

The tough outer covering of the eye is referred to as the

Correct AnswerverifiedShow Answer

When flying on a plane,traveling at 500 miles per hour,why does your vestibular system not register the extremely fast linear motion?

Correct AnswerverifiedShow Answer

A high-pitched sound is characterized by

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Rods and cones,like most sensory receptors,depolarize opon receiving a stimulus.

Correct AnswerverifiedShow Answer

The olfactory receptors discovered by Richard Axel and Linda Buck are members of a large family of similar receptor molecules termed

Correct AnswerverifiedShow Answer

Death of hair cells resulting from repeated exposure to loud noises is thought to be caused by metabolic "exhaustion" of these cells from continuous activation.

Correct AnswerverifiedShow Answer

Where do you predict that the highest density of mechanoreceptors in the skin would be located?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

When light strikes the rod cell,it becomes and glutamate release onto bipolar cells .

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