A&P I - Section 14

damage to the left side of the brain near the visual cortex could result in which of the following visual changes?

loss of right visual fields from both eyes

oscillation of the eyes during the tracking of something in motion is called

nystagmus

What eye layer is referred to in the "Don't fire until you see the whites of their eyes"?

sclera

The correct pathway for impulses leaving the retina is

photoreceptors, bipolar cells, ganglion cells, and optic nerve

which of the following functions is carried out by both aqueous and vitreous humor?

refraction of light rays

sensory receptors for balance are found in the

semicircular canals

olfaction is the sense of

smell

which of the special senses contains receptor neurons that are the only nerve cells in direct contact with the outside environment?

smell

arrange the following to reflect the correct sequence an action potential would follow to reach the olfactory cortex of the brain: 1) olfactory bulb 2) olfactory cortex 3) olfactory epithelium 4) olfactory tract

3,1,4,2

what ion(s) cause(s) depolarization in olfactory neurons?

Both Na+ and Ca2+

which of the following is NOT a primary odor class?

Umami

which of the following is NOT an effect of aging on sense organs?

a large loss in the ability to detect odors

Cochlear neurons are stimulated by

bending microvilli or stereocilia on the hair cells.

mechanical deficiency in transmission of sound waves to the spiral organ is

conduction hearing loss

the anterior and posterior chambers of the eye are separated by

cornea

which of the following statements is true?

damaged olfactory neurons are replaced

the direction from which a sound is coming can be determined by the

differences in the time that sounds waves take to reach each ear

humans are able to distinguish several million shades of color because

different proportions of cone cells respond to each wavelength of light

the auditory tube

equalizes air pressure between the middle ear and outside air

taste buds are NOT associated with ____________ papillae

filiform

Albinism in which there is an absence of melanin pigment would affect the individual's ability to

have high levels of visual acuity and prevent scattering of light inside the eye

damage to vestibulocochlear nerve would result in some loss of

hearing and balance

Rapid changes in altitude can rupture the eardrum. Symptoms that may occur include

hearing impairment

Amanda has no visual impairments, but has noticed that in order to see clearly she must hold books farther from her face in order to read. What is happening to Amanda's vision?

her lens is becoming more rigid with age

which of the following is correctly matched?

iris-sphincter pupillae

color vision

is a function of cone cells

which of the following is false?

most of the optic tract axons terminate in the medial geniculate nucleus of the thalamus

Which of the following special senses experiences the least amount of decline as an individual ages?

olfactory

most neurons are permanent cells, however ________ are neurons that are constantly being replaced.

olfactory neurons

which of the following is NOT a feature of the retina?

optic chiasm

blood vessels enter the eye and the nerve processes exit the eye at the

optic disc

the sensory cells for hearing are located in the

organ of Corti or spinal organ

to which of the following substances would the taste buds be most sensitive?

quinine (tonic) water

which of the following definitions best describes the timbre of sounds?

resonance quality

which of the following statements is false?

sensitivity of taste buds for sweet taste is very high

the utricle and saccule are involved in

static balance

the olfactory cortex is located in the __________ lobe and the secondary olfactory areas are located in the _________ lobe.

temporal, frontal

the ability of the olfactory system to adapt to a particular odor may involve

the intermediate olfactory area sending inhibiting impulses to the olfactory bulb

which of the following cranial nerves would cause a person discomfort when getting dental work done?

trigeminal

The newest taste to be described is

umami

which of the following is a part of the bony labyrinth?

vestibule