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Exam 19: Senses: General and Special

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Question 41

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Which is not correct about the vascular tunic of the eye?

A) The choroid is the most extensive and posterior region of the vascular tunic.
B) Melanin pigment granules in the choroid absorb extraneous light.
C) The ciliary body epithelium secretes aqueous humor.
D) Relaxation and contraction of ciliary muscles alter the shape of the lens.
E) The iris is composed of two groups of skeletal muscle fibers.

F) C) and D)
G) A) and E)

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Question 42

Multiple Choice

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These receptors detect changes in pressure within the body.

A) Chemoreceptors
B) Thermoreceptors
C) Photoreceptors
D) Mechanoreceptors
E) Baroreceptors

F) D) and E)
G) All of the above

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Question 43

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The otolithic membrane functions in hearing and in maintaining equilibrium.

Suspensory ligaments function to change the shape of the lens within the eye.

Olfactory receptor cells are modified bipolar neurons that bear olfactory hairs.

-In this illustration of the inner ear,what feature does the number 9 indicate?

Olfactory receptor cells can undergo mitosis to replace aged cells.

These receptors respond to pain caused by external and internal stimuli.

Conscious awareness of incoming sensory information is called

The olfactory system can recognize as many as 50-60 different primary odors as well as many thousands of other chemical stimuli.

What part of the retina lacks photoreceptors?

The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue.They contain the majority of taste buds and are called _____ papillae.

The middle and inner ear are housed within the _____ bone.

The eye begins to develop during the fourth week of embryonic development.

"Far-sighted" people suffer from emmetropia.

These receptors respond to touch,pressure,vibration,and stretch.

The lens of the eye flattens when

Which photoreceptor cells function in dim light?

The reason we can detect so many different odors is because each olfactory neuron is slightly different than the others,allowing for a wide range of odor sensations.

What part of the retina is responsible for the sharpest vision?