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A&P Chapter 15

STUDY
PLAY
all of the above
Olfactory neurons
1. have projections called cilia
2. have axons that combine to form olfactory nerves
3. connect to the olfactory bulb
4. have receptors that react with odorants dissolved in fluid
5. all of the above
the olfactory cortex is in the occipital lobe of the cerebrum
Which of these statements is not true with respect to olfaction
1. olfactory sensation is relayed directly to the cerebral cortex without passing through the thalamus
2. olfactory neurons are replaced about every 2 months
3. the lateral olfactory area of the cortex is involved in the conscious perception of smell
4. the medial olfactory area of the cortex is responsible for visceral and emotional reactions to odors
5. the olfactory cortex is in the occipital lobe of the cerebrum
have no axons but release neurotransmitters when stimulated
Gustatory (taste) cells
spicy
Which of these is not one of the basic tastes
1. spicy
2. salt
3. bitter
4. umami
5. sour
filiform
Which of these types of papillae have no taste buds associated with them
1. circumvallate
2. filiform
3. foliate
4. fungiform
contain water, salts, mucus, and lysozyme
Tears
1. are released onto the surface of the eye near the medial corner of the eye
2. in excess are removed by the scleral venous sinus
3. in excess can cause a sty
4. can pass through the nasolacrimal duct into the oral cavity
5. contain water, salts, mucus, and lysozyme
sclera
The fibrous layer of the eye includes the
contains smooth muscles that attach to the lens by suspensory ligaments
The ciliary body
1. contains smooth muscles that attach to the lens by suspensory ligaments
2. produces the vitreous humor
3. is part of the iris of the eye
4. is part of the sclera
5. all of the above
macula lutea
The lens normally focuses light onto the
cornea, aqueous humor, lens, vitreous humor
Given these structures
1. lens
2. aqueous humor
3. vitreous humor
4. cornea

list the structures in the order that light entering the eye encounters them
exits the eye through the scleral venous sinus
Aqueous humor
lens to become spherical
Contraction of the smooth muscle in the ciliary body causes the
1,4,6
Given these events
1. medial rectus contracts
2. lateral rectus contracts
3. pupils dilate
4. pupils constrict
5. lens of the eye flattens
6. lens of the eye becomes more spherical

Assume you are looking at an object 30 feet away. If you suddenly look at an object that is 1 foot away which events occur
4,3,5,2,1
Given these events
1. bipolar cells depolarize
2. decrease in glutamate released from presynaptic terminals of photoreceptor cells
3. light strikes photoreceptor cells
4. photoreceptor cells depolarized
5. photoreceptor cells hyperpolarized

choose the arrangement that lists the correct order of events, starting with the photoreceptor cells in the resting, nonactivated state
2,1,3
Given these neurons in the retina
1. bipolar cells
2. ganglionic cells
3. photoreceptor cells

choose the arrangement that lists the correct order of the cells encountered by light as it enters the eye and travels toward the pigmented retina
rods - visual acuity
Which of these photoreceptor cells is not correctly matched with its function
1. rods-vision in low light
2. rods-visual acuity
3. cones-color vision
the amount of rhodopsin increases
concerning dark adaptation
1. the amount of rhodopsin increases
2. the pupils constrict
3. it occurs more rapidly than light adaptation
4. all of the above
1,3,4
In the retina, there are cones that are most sensitive to a particular color. Given this list of colors
1. red
2. yellow
3. green
4. blue

Indicate which colors correspond to specific types of cones
2,1,4,3
Given these areas of the retina
1. macula
2. fovea centralis
3. optic disc
4. periphery of the retina

list the areas according to the density of cones, starting with the area that has the highest density of cones
most go to the thalamus but some go to the superior colliculus
Concerning axons in the optic nerve from the right eye
1. they all go to the right occipital lobe
2. they all go to the left occipital lobe
3. they all go to the thalamus
4. most go to the thalamus but some go to the superior colliculus
5. some go to the right occipital lobe, but some go to the left occipital lobe
both a and c
A lesion that has destroyed the left optic tract of a boy eliminates vision in his
1. left nasal visual field
2. left temporal visual field
3. right temporal visual field
4. both a and b
5. both a and c
nearsighted, concave lens
A person with an abnormally powerful focusing system is ________ and uses a _________ to correct his or her vision
external acoustic meatus
Which of these structures is found in or is part of the external ear
1. oval window
2. auditory tube
3. ossicles
4. external acoustic meatus
5. cochlear duct
Malleus, Incus, stapes
List the order of the earbones
1,3,2,4
Given these structures
1. perilymph
2. endolymph
3. vestibular membrane
4. basilar membrane

list the structures in the order sound waves coming from the outside encounter them in producing sound
cochlear duct
The spiral organ is found within the
1. cochlear duct
2. scala vestibuli
3. scala tympani
4. vestibule
5. semicircular canals
amplitude
An increase in the loudness of sound occurs as a result of an increase in the ___________ of the sound wave
basilar membrane, spiral organ
Interpretation of different sounds is possible because of the ability of the _______ to vibrate at different frequencies and stimulate the _______
macula
Which structure is a specialized receptor found within the utricle
1. macula
2. crista ampullaris
3. spiral organ
4. cupula
the movement of the head in all directions
Damage to the semicircular canals affects the ability to detect
1. sound
2. the position of the head relative to the ground
3. the movement of the head in all directions
4. all of the above