Question 1

The text discusses "labeled lines" as an organizational scheme within the nervous system. Re-write the definition of a labeled line in your own words.

Accepted Answer

A labeled line in the context of the ner

Question 2

The visual system is sometimes described as having a very large "dynamic range" - that is, it is capable of responding to sensory stimuli over a large degree of stimulus (light) intensities. Why is this important? Decide whether this description is accurate, justify your response, and describe specific mechanisms that allow detection of light over such a broad range of intensities.

Accepted Answer

The description of the visual system as

Question 3

What is the primary function of the round window of the cochlea?

Accepted Answer

A)  To transmit sound from the middle bones of the ear to the fluid filled cochlea. 
B)  To transmit sound from the outer ear to the bones of the middle ear. 
C)  To allow for displacement of the ear drum by relieving pressure in the middle ear. 
D)  To allow for displacement of the oval window by relieving pressure in the cochlea. 
A)  To transmit sound from the middle bones of the ear to the fluid filled cochlea. 
B)  To transmit sound from the outer ear to the bones of the middle ear. 
C)  To allow for displacement of the ear drum by relieving pressure in the middle ear. 
D)  To allow for displacement of the oval window by relieving pressure in the cochlea.

Question 4

The loss of part or all of your sense of smell is known as ________________ .

Accepted Answer

The answer of The loss of part or all of...

Question 5

Analyze figure 6.9. In the text Which of the following is a true statement regarding this figure?

Accepted Answer

A)  Only cones can detect light in the visible spectrum. 
B)  Only L-cones detect light of wavelength 600 nm. 
C)  Both S-cones and rods detect light that falls in the blue visible spectrum. 
D)  all of the above are true 
A)  Only cones can detect light in the visible spectrum. 
B)  Only L-cones detect light of wavelength 600 nm. 
C)  Both S-cones and rods detect light that falls in the blue visible spectrum. 
D)  all of the above are true

Question 6

Analyze figure 6.8. In the text This figure illustrates the fact that

Accepted Answer

A)  there are more rods than cones in the retina 
B)  the blind spot contains no rods and no cones 
C)  mostly cones, and few rods, are found in the fovea 
D)  all of the above are true 
A)  there are more rods than cones in the retina 
B)  the blind spot contains no rods and no cones 
C)  mostly cones, and few rods, are found in the fovea 
D)  all of the above are true

Question 7

Which of the following statements are correct regarding phototransduction and olfactory transduction?

Accepted Answer

A)  Odorant molecules and light are both detected by G-protein coupled receptors. 
B)  Second messenger systems are used in both systems. 
C)  Cyclic nucleotide-gated ion channels are used in both systems to control cell membrane voltage 
D)  all of the above 
A)  Odorant molecules and light are both detected by G-protein coupled receptors. 
B)  Second messenger systems are used in both systems. 
C)  Cyclic nucleotide-gated ion channels are used in both systems to control cell membrane voltage 
D)  all of the above

Question 8

Analyze figure 6.17. In the text What does this figure illustrate?

Accepted Answer

A)  Olfactory neurons tend to project widely to many glomeruli in the olfactory bulb, as indicated by the blue stain. 
B)  All olfactory neurons express P2, as indicated by the blue stain. 
C)  Olfactory neurons that express P2 converge on just a few glomeruli, as indicated by the blue stain. 
D)  Olfactory neurons recognize only odorants that have P2 epitopes, as indicated by the blue stain. 
A)  Olfactory neurons tend to project widely to many glomeruli in the olfactory bulb, as indicated by the blue stain. 
B)  All olfactory neurons express P2, as indicated by the blue stain. 
C)  Olfactory neurons that express P2 converge on just a few glomeruli, as indicated by the blue stain. 
D)  Olfactory neurons recognize only odorants that have P2 epitopes, as indicated by the blue stain.

Question 9

Compared to you, a grandparent would be more likely to

Accepted Answer

A)  not be able to detect loud sounds 
B)  not be able to detect high frequency sounds 
C)  not be able to detect low frequency sounds 
D)  not be able to detect sounds in the frequency range of the human voice 
A)  not be able to detect loud sounds 
B)  not be able to detect high frequency sounds 
C)  not be able to detect low frequency sounds 
D)  not be able to detect sounds in the frequency range of the human voice

Question 10

The blind spot is

Accepted Answer

A)  the area of the retina with the most photoreceptors 
B)  responsible for mostly color vision 
C)  responsible for mostly black and white vision 
D)  the region of the retina where axons leave the retina and enter the optic nerve 
A)  the area of the retina with the most photoreceptors 
B)  responsible for mostly color vision 
C)  responsible for mostly black and white vision 
D)  the region of the retina where axons leave the retina and enter the optic nerve

Question 11

Hair cell depolarization in the inner ear is normally the result of

Accepted Answer

A)  deflection by "sound waves" (variations in air pressure) 
B)  deflection by fluid movement in the cochlea 
C)  action potentials arriving from the auditory nerve 
D)  none of the above are true 
A)  deflection by "sound waves" (variations in air pressure) 
B)  deflection by fluid movement in the cochlea 
C)  action potentials arriving from the auditory nerve 
D)  none of the above are true

Question 12

Contrast sensory transduction in hair cells with sensory transduction in olfaction. Which of the following is a true statement?

Accepted Answer

A)  The ion responsible for depolarization in both systems is sodium. 
B)  In both systems, the cell is repolarized as cations are actively pumped out of the cell. 
C)  In both systems, potassium flows down its concentration gradient first into, and then out of, the cell. 
D)  None of the above are true statements. 
A)  The ion responsible for depolarization in both systems is sodium. 
B)  In both systems, the cell is repolarized as cations are actively pumped out of the cell. 
C)  In both systems, potassium flows down its concentration gradient first into, and then out of, the cell. 
D)  None of the above are true statements.

Question 13

Olfaction, the sense of smell, is used by an organism for which of the following purposes?

Accepted Answer

A)  Detection of predators 
B)  Identification of food sources 
C)  Mate identification 
D)  all of the above 
A)  Detection of predators 
B)  Identification of food sources 
C)  Mate identification 
D)  all of the above

Question 14

What is the role of mitral and granule cells in the olfactory bulb?

Accepted Answer

A)  Each mitral cell receives input from only one glomerulus. 
B)  Granule cells release GABA onto mitral cells at inhibitory synapses. 
C)  Granule cells and mitral cells permit lateral inhibition among mitral cells. 
D)  All of the above. 
A)  Each mitral cell receives input from only one glomerulus. 
B)  Granule cells release GABA onto mitral cells at inhibitory synapses. 
C)  Granule cells and mitral cells permit lateral inhibition among mitral cells. 
D)  All of the above.

Question 15

What processes allow an eye to properly adjust to a dim environment?

Accepted Answer

A)  the pupils dilate, allowing more light into the eye 
B)  photobleached retinal (the ligand for opsin proteins) is replaced with non-photobleached cis-retinal 
C)  high calcium concentrations inhibit the synthesis of cGMP 
D)  all of the above 
A)  the pupils dilate, allowing more light into the eye 
B)  photobleached retinal (the ligand for opsin proteins) is replaced with non-photobleached cis-retinal 
C)  high calcium concentrations inhibit the synthesis of cGMP 
D)  all of the above

Question 16

Which of the following is NOT true regarding the anatomy of the ear?

Accepted Answer

A)  The pinna and ear canal direct sound to the tympanic membrane. 
B)  The bones of the middle ear transmit sound to the cochlea. 
C)  The stapes transmits sound by pressing on the tympanic membrane of the cochlea. 
D)  The ear drum will rupture when exposed to sounds greater than 140 dB. 
A)  The pinna and ear canal direct sound to the tympanic membrane. 
B)  The bones of the middle ear transmit sound to the cochlea. 
C)  The stapes transmits sound by pressing on the tympanic membrane of the cochlea. 
D)  The ear drum will rupture when exposed to sounds greater than 140 dB.

Question 17

After going to a concert, your hearing is muffled. What process may have been involved?

Accepted Answer

A)  a protective increase in tension on muscles that allow movements of the ossicles (bones of the middle ear) 
B)  a protective increasing in the sensitivity of the cochlea to vibration 
C)  a protective closing of the tympanic membrane 
D)  a protective decrease in the potassium concentration of the endolymph 
E)  All of the above are true 
A)  a protective increase in tension on muscles that allow movements of the ossicles (bones of the middle ear) 
B)  a protective increasing in the sensitivity of the cochlea to vibration 
C)  a protective closing of the tympanic membrane 
D)  a protective decrease in the potassium concentration of the endolymph 
E)  All of the above are true

Question 18

Which of the following is NOT true regarding human audition?

Accepted Answer

A)  movement of the tectorial membrane relative to the basilar membrane deflects stereocilia 
B)  the frequency of a sound influences how much a given region of the cochlea's basilar membrane will vibrate 
C)  hair cells are depolarized by GPCR receptors that are similar in structure to opsins odorant receptor molecules 
D)  all of the above are true 
A)  movement of the tectorial membrane relative to the basilar membrane deflects stereocilia 
B)  the frequency of a sound influences how much a given region of the cochlea's basilar membrane will vibrate 
C)  hair cells are depolarized by GPCR receptors that are similar in structure to opsins odorant receptor molecules 
D)  all of the above are true

Question 19

Adjacent regions of the cochlea detect similar frequencies. This is an example of a ________________ map in the nervous system.

Accepted Answer

The answer of Adjacent regions of the cochlea detect similar...

Question 20

Which of the following is a true statement regarding connections between cells in the retina?

Accepted Answer

A)  Rods form synapses directly with Off Bipolar cells. 
B)  Cone bipolar cells synapse directly with retinal ganglion cells. 
C)  Rod bipolar cells synapse directly with retinal ganglion cells. 
D)  all of the above are true 
A)  Rods form synapses directly with Off Bipolar cells. 
B)  Cone bipolar cells synapse directly with retinal ganglion cells. 
C)  Rod bipolar cells synapse directly with retinal ganglion cells. 
D)  all of the above are true

The text discusses "labeled lines" as an organizational scheme within the nervous system. Re-write the definition of a labeled line in your own words.

What is the primary function of the round window of the cochlea?

The loss of part or all of your sense of smell is known as ________________ .

Analyze figure 6.9. In the text Which of the following is a true statement regarding this figure?

Analyze figure 6.8. In the text This figure illustrates the fact that

Which of the following statements are correct regarding phototransduction and olfactory transduction?

Analyze figure 6.17. In the text What does this figure illustrate?

Compared to you, a grandparent would be more likely to

The blind spot is

Hair cell depolarization in the inner ear is normally the result of

Contrast sensory transduction in hair cells with sensory transduction in olfaction. Which of the following is a true statement?

Olfaction, the sense of smell, is used by an organism for which of the following purposes?

What is the role of mitral and granule cells in the olfactory bulb?

What processes allow an eye to properly adjust to a dim environment?

Which of the following is NOT true regarding the anatomy of the ear?

After going to a concert, your hearing is muffled. What process may have been involved?

Which of the following is NOT true regarding human audition?

Adjacent regions of the cochlea detect similar frequencies. This is an example of a ________________ map in the nervous system.

Which of the following is a true statement regarding connections between cells in the retina?

Nervous System Organization

Computing With Neurons

Neuronal Plasticity

Developing a Nervous System

Protecting and Maintaining the Adult Nervous System

Sensors II: Sensing on Contact

Using Muscles and Glands

Regulating Vital Bodily Functions

Controlling Posture and Locomotion

Localizing Stimuli and Orienting in Space

Identifying Stimuli and Stimulus Objects

Regulating Brain States

Remembering Relationships

Selecting Actions, Pursuing Goals

Being Different From Others

Filters

Exam 6: Sensors I: Remote Sensing

The text discusses "labeled lines" as an organizational scheme within the nervous system. Re-write the definition of a labeled line in your own words.

What is the primary function of the round window of the cochlea?

The loss of part or all of your sense of smell is known as ________________ .

Analyze figure 6.9. In the text Which of the following is a true statement regarding this figure?

Analyze figure 6.8. In the text This figure illustrates the fact that

Which of the following statements are correct regarding phototransduction and olfactory transduction?

Analyze figure 6.17. In the text What does this figure illustrate?

Compared to you, a grandparent would be more likely to

The blind spot is

Hair cell depolarization in the inner ear is normally the result of

Contrast sensory transduction in hair cells with sensory transduction in olfaction. Which of the following is a true statement?

Olfaction, the sense of smell, is used by an organism for which of the following purposes?

What is the role of mitral and granule cells in the olfactory bulb?

What processes allow an eye to properly adjust to a dim environment?

Which of the following is NOT true regarding the anatomy of the ear?

After going to a concert, your hearing is muffled. What process may have been involved?

Which of the following is NOT true regarding human audition?

Adjacent regions of the cochlea detect similar frequencies. This is an example of a ________________ map in the nervous system.

Which of the following is a true statement regarding connections between cells in the retina?

Nervous System Organization

Computing With Neurons

Neuronal Plasticity

Developing a Nervous System

Protecting and Maintaining the Adult Nervous System

Sensors II: Sensing on Contact

Using Muscles and Glands

Regulating Vital Bodily Functions

Controlling Posture and Locomotion

Localizing Stimuli and Orienting in Space

Identifying Stimuli and Stimulus Objects

Regulating Brain States

Remembering Relationships

Selecting Actions, Pursuing Goals

Being Different From Others

Filters