Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 14, Problem 15RQ
Axons from which neuron in the retina make up the optic nerve?
- amacrine cells
- photoreceptors
- bipolar cells
- retinal ganglion cells
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nonM-nonP type (K-type) retinal ganglion cells typically have:
large receptive fields and motion sensitivity
small receptive fields and color-opponency
small receptive fields and motion sensitivity
small receptive field without color-opponency
Where does the bunde of ganglion axons that forms the optic nerve exit the eye?
The discharge rate of an off-center ganglion cell:
is not an absolute measure of light intensity
does not depend on the background level of illumination
O is highest when receptive field is in complete darkness
O is the same for center-only and center-plus-surround illumination
Which of the following terms are most suitably matched?
Pitch, waveform
Loudness, amplitude
Frequency, pressure
Tonotopy, phase
Chapter 14 Solutions
Anatomy & Physiology
Ch. 14 - Watch this video...Ch. 14 - Figure 14.9 The basilar membrane is the thin...Ch. 14 - Watch this video...Ch. 14 - Watch this animation...Ch. 14 - Watch this video...Ch. 14 - Watch this video...Ch. 14 - The inability to recognize people by their faces...Ch. 14 - Watch this video...Ch. 14 - Visit this site...Ch. 14 - Watch this video...
Ch. 14 - Watch this video...Ch. 14 - What type of receptor cell is responsible for...Ch. 14 - Which of these cranial nerves is part of the...Ch. 14 - Which submodality of taste is sensitive to the pH...Ch. 14 - Axons from which neuron in the retina make up the...Ch. 14 - What type of receptor cell is involved in the...Ch. 14 - Which of these sensory modalities does not pass...Ch. 14 - Which nucleus in the medulla is connected to the...Ch. 14 - Visual stimuli in the upper-left visual field will...Ch. 14 - Which location on the body has the largest region...Ch. 14 - Which of the following is a direct target of the...Ch. 14 - Which region of the frontal lobe is responsible...Ch. 14 - Which exuapyramidal tract incorporates equilibrium...Ch. 14 - Which region of gray matter in the spinal cord...Ch. 14 - What type of reflex can protect the foot when a...Ch. 14 - What is the name for the topographical...Ch. 14 - The sweetener known as stevia can replace glucose...Ch. 14 - Why does the blind spot from the optic disc in...Ch. 14 - Following a motorcycle accident, the victim loses...Ch. 14 - A pituitary tumor can cause perceptual losses in...Ch. 14 - The prefrontal lobotomy is a drastic—and largely...Ch. 14 - If a reflex is a limited circuit within the...
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- The inner layer of the eye includes the _____________. a. lens and choroid b. sclera and cornea c. retina d. start of optic nervearrow_forwardLarry goes to the doctor complaining that he cant see the right side of the visual field with either eye. Where in the visual signal-processing pathway is Larrys problem occurring?arrow_forwardYour visual field is ______________. a. a specific, small area of the retina b. what you actually see c. the area where color vision occurs d. where the optic nerve startsarrow_forward
- Figure 36.18 Which of the following statements about the human eye is false? Rods detect color, while cones detect only shades of gray. When light enters the retina, it passes the ganglion cells and bipolar cells before reaching photoreceptors at the rear of the eye. The iris adjusts the amount of light coming into the eye. The cornea is a protective layer on the front of the eye.arrow_forwardWhy is it easier to see images at night using peripheral, rather than the central, vision? Cones are denser in the periphery of the retina Bipolar cells are denser in the periphery of the retina Rods are denser in the periphery of the retina The optic nerve exits at the periphery of the retina.arrow_forwardRods differ from cones in the following ways: a. They detect dim light, not bright light. b. They have a different visual pigment. c. They are not located in the retina. d. All of the above. e. a and b onlyarrow_forward
- Occupational Hearing Loss Frequent exposure to loud noise of a particular pitch can cause loss of hair cells in the part of the cochlea that responds to that pitch. People who work with or around noisy machinery are at risk for such frequency-specific hearing loss. Taking precautions such as using ear plugs to reduce sound exposure is important. Noise-induced hearing loss can be prevented, but once it occurs it is irreversible because dead or damaged hair cells are not replaced. FIGURE 33.24 shows the threshold decibel levels at which sounds of different frequencies can be detected by an average 25-year-old carpenter, a 50-year-old carpenter, and a 50-year-old who has not been exposed to on-the-job noise. Sound frequencies are given in hertz (cycles per second), The more cycles per second, the higher the pitch. FIGURE 33.24 Effects of age aria occupational noise exposure. The graph shows the threshold hearing capacities fin decibels) for sounds of different frequencies (given in hertz) in a 25-year-okj carpenter (blue). a 50-year-old carpenter (red), arid a 50-year-ofd who did not have any on-the-job noise exposure (brown). 1. Which sound frequency was most easily detected by all three people?arrow_forwardcolor blindness can result from the loss of specific types of cons or it can occur in individuals having fewer cones of a given type.an individual has 50% lesss than the normal number of green cone photoreceptors in his retina how would this affect his visionarrow_forwardHow are Ca2+ channels involved in phototransduction? they cause neurotransmitter release even if no action potentials are produced are not affected by PDE activation in the outer segments when open, they lead to hyperpolarization in photoreceptors in darkness, they do not rely on CGMP levels The density of cones in the retina: is highest where cone outer segments increase in diameter is lowest where retinal blood vessels are absent is drastically less than that of rods in the fovea is indicative of what areas are associated with acuity The recycling of rhodopsin.arrow_forward
- When the human eye is in complete darkness, how do the cones of the eye respond? Only one type is stimulated None of the types are stimulated All types are stimulated Only two types are stimulatedarrow_forwardThe correct pathway of activation (by sending neuronal signals) in the retina is bipolar cell - retinal ganglion cell - photoreceptor photoreceptor - retinal ganglion cell - bipolar cell retinal ganglion cell - bipolar cell - photoreceptor photoreceptor - bipolar cell - retinal ganglion cell O bipolar cell - photoreceptor - amacrine cellarrow_forwardWhen we talk about the receptive field of a receptor cell or of a retinal ganglion cell, what are we are referring to? the area of the lateral geniculate nucleus of the thalamus to which that cell projects its axons the location in the primary visual cortex where we will find neurons that the cell is connected to the part of the retina in which that cell is located the part of the visual field where a stimulus must be in order to make that cell respondarrow_forward
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