Question 1

What is the chemical composition of the rod pigment,rhodopsin,and how does it appear to act in the reception of light?

Accepted Answer

Rhodopsin is a combination of retinal an

Question 2

Dancers will use a technique called "spotting" when they perform spins of the body.By holding their head and eyes on a fixed point in front of them as their body spins they reduce the amount of head spinning and this prevents dizziness.Which of the following is the most likely explanation for why this works?

Accepted Answer

A)  This will help to reduce the lateral flection of the head and will prevent hyper polarization or depolarization of the hair cells in the macula. 
B)  This helps keep the motions detected by the eyes congruent (aligned) with the motions sensed by the vestibular apparatus. 
C)  Reducing the inertia of head spin will reduce the flow of endolymph that deflects the hair cells of the crista ampullaris. 
D)  When the eyes send a static vision of stability to the brain, it is tricked into believing the body is still and therefore dizziness will not occur. 
A)  This will help to reduce the lateral flection of the head and will prevent hyper polarization or depolarization of the hair cells in the macula. 
B)  This helps keep the motions detected by the eyes congruent (aligned) with the motions sensed by the vestibular apparatus. 
C)  Reducing the inertia of head spin will reduce the flow of endolymph that deflects the hair cells of the crista ampullaris. 
D)  When the eyes send a static vision of stability to the brain, it is tricked into believing the body is still and therefore dizziness will not occur.

Question 3

Distinguish between the maculae and cristae ampullaris in terms of their sensory reception.

Accepted Answer

Maculae are sensory receptors for static

Question 4

Most newborns ________.

Accepted Answer

A)  are myopic 
B)  see in tones of red and green only 
C)  cry with copious tears 
D)  often use only one eye at a time 
A)  are myopic 
B)  see in tones of red and green only 
C)  cry with copious tears 
D)  often use only one eye at a time

Question 5

Baby Susie's pediatrician notices that one of her eyes rotates outward and that she does not appear to be using it for vision.What is her condition and what does the pediatrician recommend?

Accepted Answer

Susie has strabismus,caused by congenita

Question 6

Another name for the primary visual cortex is ________.

Accepted Answer

A)  prefrontal cortex 
B)  prestriate cortex 
C)  collicular cortex 
D)  striate cortex 
A)  prefrontal cortex 
B)  prestriate cortex 
C)  collicular cortex 
D)  striate cortex

Question 7

Labyrinthitis is a medical condition often caused by viral infection,resulting in swelling and inflammation of the membranous labyrinth.Which of the following symptoms would you most associate with the condition of labyrinthitis?

Accepted Answer

A)  auditory hallucination 
B)  loss of hearing 
C)  ringing in the ears (tinnitus) 
D)  loss of balance and dizziness 
A)  auditory hallucination 
B)  loss of hearing 
C)  ringing in the ears (tinnitus) 
D)  loss of balance and dizziness

Question 8

After head trauma from an automobile accident,a man has anosmia.Define anosmia.Why is this condition fairly common after such injuries and in cases of severe nasal cavity inflammation?

Accepted Answer

Anosmia means the loss of chemical sense

Question 9

Match the following:
-A possible side effect of medications such as aspirin.

Accepted Answer

A) Tinnitus 
B) Sensorineural deafness 
C) Conduction deafness 
A) Tinnitus 
B) Sensorineural deafness 
C) Conduction deafness

Question 10

Figure 15.1
Using Figure 15.1, match the following:
-Rod.

Accepted Answer

A) B 
B) E 
C) A 
D) D 
E) C 
A) B 
B) E 
C) A 
D) D 
E) C

Question 11

Match the following:
-Houses the spiral organ (of Corti).

Accepted Answer

A) Spiral organ (of Corti) 
B) Cochlear duct 
C) Vestibule 
D) Tympanic membrane 
A) Spiral organ (of Corti) 
B) Cochlear duct 
C) Vestibule 
D) Tympanic membrane

Question 12

Color vision has much greater resolution than night vision (vision that is mostly in shades of gray).Which of the following is the best explanation for why this is so?

Accepted Answer

A)  A single cone photoreceptor often connects to a single bipolar cell and a single ganglion cell while as many as 100 rods will converge to a single ganglion cell. 
B)  There are many more cone photoreceptors in the eye than rod photoreceptors. 
C)  There are several types of cone photoreceptors, each of which enrich the clarity and resolution of vision. 
D)  A larger proportion of the brain's visual cortex is active during the day when our cone photo receptors are most active. 
A)  A single cone photoreceptor often connects to a single bipolar cell and a single ganglion cell while as many as 100 rods will converge to a single ganglion cell. 
B)  There are many more cone photoreceptors in the eye than rod photoreceptors. 
C)  There are several types of cone photoreceptors, each of which enrich the clarity and resolution of vision. 
D)  A larger proportion of the brain's visual cortex is active during the day when our cone photo receptors are most active.

Question 13

A patient has a loss of hearing in only one ear.Which of the following is likely to be a result?

Accepted Answer

A)  The patient will not be able to localize the origin of sounds. 
B)  The patient will have increased sensitivity to sound in the unaffected ear. 
C)  The patient will have a loss of balance with dizziness and vertigo. 
D)  The patient will not be able to track objects with the eye on the same side as the hearing loss. 
A)  The patient will not be able to localize the origin of sounds. 
B)  The patient will have increased sensitivity to sound in the unaffected ear. 
C)  The patient will have a loss of balance with dizziness and vertigo. 
D)  The patient will not be able to track objects with the eye on the same side as the hearing loss.

Question 14

Visual inputs to the ________ serve to synchronize biorhythms with natural light and dark.

Accepted Answer

A)  suprachiasmatic nucleus 
B)  superior colliculi 
C)  lateral geniculate body 
D)  pretectal nuclei 
A)  suprachiasmatic nucleus 
B)  superior colliculi 
C)  lateral geniculate body 
D)  pretectal nuclei

Question 15

Match the following:
-Can result from the fusion of the auditory ossicles.

Accepted Answer

A) Tinnitus 
B) Sensorineural deafness 
C) Conduction deafness 
A) Tinnitus 
B) Sensorineural deafness 
C) Conduction deafness

Question 16

The apex of the cochlea hears sounds in the range of ________ Hz.

Accepted Answer

The answer of The apex of the cochlea hears sounds...

Question 17

Match the following:
-A membrane that transmits sound vibrations to the auditory ossicles.

Accepted Answer

A) Spiral organ (of Corti) 
B) Cochlear duct 
C) Vestibule 
D) Tympanic membrane 
A) Spiral organ (of Corti) 
B) Cochlear duct 
C) Vestibule 
D) Tympanic membrane

Question 18

If you shine a light into one eye both pupils will constrict.The best explanation for this is ________.

Accepted Answer

A)  sensory input from the retinas of both eyes converges at the optic chiasm and information from each eye is delivered to both the left and right sides of the brain 
B)  information from one eye is directly and immediately transferred to the other eye to maintain alignment of the eyes 
C)  a small portion of light always enters the other eye 
D)  this in fact does not occur and information from both eyes is always separated 
A)  sensory input from the retinas of both eyes converges at the optic chiasm and information from each eye is delivered to both the left and right sides of the brain 
B)  information from one eye is directly and immediately transferred to the other eye to maintain alignment of the eyes 
C)  a small portion of light always enters the other eye 
D)  this in fact does not occur and information from both eyes is always separated

Question 19

The synapse of the olfactory nerves with the mitral cells is called a ________.

Accepted Answer

The answer of The synapse of the olfactory nerves with...

Question 20

Match the following:
-Separates external acoustic meatus from the middle ear.

Accepted Answer

A) Otoliths 
B) Vestibule 
C) Pharyngotympanic tube 
D) Tympanic membrane 
A) Otoliths 
B) Vestibule 
C) Pharyngotympanic tube 
D) Tympanic membrane

Exam 15: The Special Senses

What is the chemical composition of the rod pigment,rhodopsin,and how does it appear to act in the reception of light?

Distinguish between the maculae and cristae ampullaris in terms of their sensory reception.

Most newborns ________.

Baby Susie's pediatrician notices that one of her eyes rotates outward and that she does not appear to be using it for vision.What is her condition and what does the pediatrician recommend?

Another name for the primary visual cortex is ________.

Labyrinthitis is a medical condition often caused by viral infection,resulting in swelling and inflammation of the membranous labyrinth.Which of the following symptoms would you most associate with the condition of labyrinthitis?

After head trauma from an automobile accident,a man has anosmia.Define anosmia.Why is this condition fairly common after such injuries and in cases of severe nasal cavity inflammation?

Match the following: -A possible side effect of medications such as aspirin.

Figure 15.1 Using Figure 15.1, match the following: -Rod.

Match the following: -Houses the spiral organ (of Corti).

Color vision has much greater resolution than night vision (vision that is mostly in shades of gray).Which of the following is the best explanation for why this is so?

A patient has a loss of hearing in only one ear.Which of the following is likely to be a result?

Visual inputs to the ________ serve to synchronize biorhythms with natural light and dark.

Match the following: -Can result from the fusion of the auditory ossicles.

The apex of the cochlea hears sounds in the range of ________ Hz.

Match the following: -A membrane that transmits sound vibrations to the auditory ossicles.

If you shine a light into one eye both pupils will constrict.The best explanation for this is ________.

The synapse of the olfactory nerves with the mitral cells is called a ________.

Match the following: -Separates external acoustic meatus from the middle ear.

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissue

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

The Immune System: Innate and Adaptive Body Defenses

The Respiratory System

The Digestive System

Nutrition,metabolism,and Body Temperature Regulation

The Urinary System

Fluid,electrolyte,and Acid-Base Balance

The Reproductive System

Pregnancy and Human Development

Heredity

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