Question 1

Which of the following statements is false?

Accepted Answer

A)  Neurons in the brain can interpret incoming action potentials only in certain ways. 
B)  Optic nerve impulses can only be interpreted as light. 
C)  Some sensory receptors do not convert a stimulus to nerve impulses. 
D)  The stronger the stimulus, the more action potentials are generated. 
E)  A strong stimulus activates many adjacent receptors, thereby increasing the number of action potentials and the level of awareness for the stimulus. 
A)  Neurons in the brain can interpret incoming action potentials only in certain ways. 
B)  Optic nerve impulses can only be interpreted as light. 
C)  Some sensory receptors do not convert a stimulus to nerve impulses. 
D)  The stronger the stimulus, the more action potentials are generated. 
E)  A strong stimulus activates many adjacent receptors, thereby increasing the number of action potentials and the level of awareness for the stimulus.

Question 2

Interneurons in the spinal cord release ____ when signals from pain receptors reach them.

Accepted Answer

A)  bradykinins. 
B)  histamines. 
C)  prostaglandins. 
D)  substance P. 
E)  leukotrienes. 
A)  bradykinins. 
B)  histamines. 
C)  prostaglandins. 
D)  substance P. 
E)  leukotrienes.

Question 3

The pain produced in an internal organ may be perceived as occurring somewhere else. This is called

Accepted Answer

A)  mixed nerve messages. 
B)  referred pain. 
C)  phantom pain. 
D)  psychosomatic pain. 
E)  hypochondria. 
A)  mixed nerve messages. 
B)  referred pain. 
C)  phantom pain. 
D)  psychosomatic pain. 
E)  hypochondria.

Question 4

The semicircular canals are

Accepted Answer

A)  empty. 
B)  filled with gas. 
C)  filled with a liquid. 
D)  filled with bones or stones. 
E)  filled with sand grains. 
A)  empty. 
B)  filled with gas. 
C)  filled with a liquid. 
D)  filled with bones or stones. 
E)  filled with sand grains.

Question 5

The organ of Corti is a

Accepted Answer

A)  chemoreceptor. 
B)  mechanoreceptor. 
C)  photoreceptor. 
D)  nociceptor. 
E)  osmoreceptor. 
A)  chemoreceptor. 
B)  mechanoreceptor. 
C)  photoreceptor. 
D)  nociceptor. 
E)  osmoreceptor.

Question 6

In cases of nearsightedness the eye is

Accepted Answer

A)  longer than normal. 
B)  shorter than normal. 
C)  normal, but the lens focuses incorrectly. 
D)  normal, but the cornea is shaped incorrectly. 
E)  shorter than normal with an improperly focusing lens. 
A)  longer than normal. 
B)  shorter than normal. 
C)  normal, but the lens focuses incorrectly. 
D)  normal, but the cornea is shaped incorrectly. 
E)  shorter than normal with an improperly focusing lens.

Question 7

Hair cells are important in the sense of

Accepted Answer

A)  equilibrium. 
B)  hearing. 
C)  taste. 
D)  smell. 
E)  both equilibrium and hearing. 
A)  equilibrium. 
B)  hearing. 
C)  taste. 
D)  smell. 
E)  both equilibrium and hearing.

Question 8

Accommodation involves the ability to

Accepted Answer

A)  change the sensitivity of the rods and cones by means of neurotransmitters. 
B)  change the curvature of the cornea. 
C)  change the width of the lens by contracting or relaxing certain muscles. 
D)  adapt to large changes in light intensity. 
E)  see variations in color. 
A)  change the sensitivity of the rods and cones by means of neurotransmitters. 
B)  change the curvature of the cornea. 
C)  change the width of the lens by contracting or relaxing certain muscles. 
D)  adapt to large changes in light intensity. 
E)  see variations in color.

Question 9

Which area of the brain will integrate taste and smell signals with emotional states and stored memories?

Accepted Answer

A)  the thalamus 
B)  the hypothalamus 
C)  the limbic system 
D)  the pineal gland 
E)  the corpus callosum 
A)  the thalamus 
B)  the hypothalamus 
C)  the limbic system 
D)  the pineal gland 
E)  the corpus callosum

Question 10

The technical name for the eardrum is the

Accepted Answer

A)  tympanic membrane. 
B)  round window. 
C)  oval window. 
D)  cochlear duct. 
E)  organ of Corti 
A)  tympanic membrane. 
B)  round window. 
C)  oval window. 
D)  cochlear duct. 
E)  organ of Corti

Question 11

Genital herpes in a pregnant woman may

Accepted Answer

A)  be spread from mother to newborn during childbirth causing blindness. 
B)  cause sores on the cornea of the newborn. 
C)  cause genital herpes in the newborn. 
D)  pose no threat to the newborn. 
E)  lead to blindness in the mother. 
A)  be spread from mother to newborn during childbirth causing blindness. 
B)  cause sores on the cornea of the newborn. 
C)  cause genital herpes in the newborn. 
D)  pose no threat to the newborn. 
E)  lead to blindness in the mother.

Question 12

Somatic sensations include all of the following EXCEPT

Accepted Answer

A)  heat and cold 
B)  pressure and touch 
C)  pain 
D)  limb movements and the position of the body in space 
E)  sound 
A)  heat and cold 
B)  pressure and touch 
C)  pain 
D)  limb movements and the position of the body in space 
E)  sound

Question 13

The Pacinian corpuscle is used in detecting

Accepted Answer

A)  sound. 
B)  pressure. 
C)  chemicals. 
D)  sight. 
E)  chemical differences. 
A)  sound. 
B)  pressure. 
C)  chemicals. 
D)  sight. 
E)  chemical differences.

Question 14

Match between columns
                        Premises: Olfactory receptors detect this kind of energy.
The pain you feel from a pebble in your shoe is a result of detecting this kind of energy.
Ears monitor this kind of energy.
Human eyes respond to this kind of energy.
Receptors on the tongue detect variation in this kind of energy.

Accepted Answer

The Answer of wavelike form of mechanical energy and thermal is...

Question 15

In the human eye, what provides the greatest visual acuity (the precise discrimination between adjacent points in space)?

Accepted Answer

A)  photoreceptors in the sclera 
B)  photoreceptors in the fovea 
C)  protein filaments in the lens 
D)  photoreceptors in the optic nerve 
E)  photoreceptors throughout the retina 
A)  photoreceptors in the sclera 
B)  photoreceptors in the fovea 
C)  protein filaments in the lens 
D)  photoreceptors in the optic nerve 
E)  photoreceptors throughout the retina

Question 16

Inflammation of the transparent membrane lining the inside of the eyelids is

Accepted Answer

A)  hyperopia. 
B)  astigmatism. 
C)  myopia. 
D)  conjunctivitis. 
E)  trachoma. 
A)  hyperopia. 
B)  astigmatism. 
C)  myopia. 
D)  conjunctivitis. 
E)  trachoma.

Question 17

Movable bones are found in the

Accepted Answer

A)  cochlea. 
B)  external ear. 
C)  middle ear. 
D)  inner ear. 
E)  organ of Corti. 
A)  cochlea. 
B)  external ear. 
C)  middle ear. 
D)  inner ear. 
E)  organ of Corti.

Question 18

In hearing, the last place that pressure or sound waves pass through is the

Accepted Answer

A)  bones of the middle ear. 
B)  tympanic membrane. 
C)  oval window. 
D)  round window. 
E)  tectorial membrane. 
A)  bones of the middle ear. 
B)  tympanic membrane. 
C)  oval window. 
D)  round window. 
E)  tectorial membrane.

Question 19

The outer transparent protective cover over the front of the eyeball is the

Accepted Answer

A)  fovea. 
B)  retina. 
C)  sclera. 
D)  choroid. 
E)  cornea. 
A)  fovea. 
B)  retina. 
C)  sclera. 
D)  choroid. 
E)  cornea.

Question 20

The adjustable ring of circular and radial muscles that controls the amount of light entering the eye is the

Accepted Answer

A)  lens. 
B)  cornea. 
C)  pupil. 
D)  iris. 
E)  retina. 
A)  lens. 
B)  cornea. 
C)  pupil. 
D)  iris. 
E)  retina.

Exam 14: Sensory Systems

Which of the following statements is false?

Interneurons in the spinal cord release ____ when signals from pain receptors reach them.

The pain produced in an internal organ may be perceived as occurring somewhere else. This is called

The semicircular canals are

The organ of Corti is a

In cases of nearsightedness the eye is

Hair cells are important in the sense of

Accommodation involves the ability to

Which area of the brain will integrate taste and smell signals with emotional states and stored memories?

The technical name for the eardrum is the

Genital herpes in a pregnant woman may

Somatic sensations include all of the following EXCEPT

The Pacinian corpuscle is used in detecting

In the human eye, what provides the greatest visual acuity (the precise discrimination between adjacent points in space)?

Inflammation of the transparent membrane lining the inside of the eyelids is

Movable bones are found in the

In hearing, the last place that pressure or sound waves pass through is the

The outer transparent protective cover over the front of the eyeball is the

The adjustable ring of circular and radial muscles that controls the amount of light entering the eye is the

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Blood

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