SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 15, Problem 13RAC
Summary Introduction
Introduction:
The eyes consist of three tunics. They are:
1. Fibrous Tunic is the outer layer and consists of sclera and cornea.
2. The vascular tunic is the middle layer and consists of the choroid, iris and ciliary body.
3. The nervous tunic is the inner layer and consists of the retina. The retina possesses the photoreceptors, for example, rods and cones to perceive the light signal.
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Concerning dark adaptation,a. the amount of rhodopsin increases.b. the pupils constrict.c. it occurs more rapidly than light adaptation.d. All of these are correct
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For near vision, the pupils dilate and the eyes converge.
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The visual areas are in the occipital lobes of the cerebrum.
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Chapter 15 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 15.1 - Where are olfactory neurons located? Explain their...Ch. 15.1 - Describe the initiation of an action potential in...Ch. 15.1 - What is unique about olfactory neurons with...Ch. 15.1 - Where are the central olfactory cortex areas...Ch. 15.2 - Name and describe the four kinds of papillae on...Ch. 15.2 - Describe the structure of a taste bud.Ch. 15.2 - What are the five primary tastes? Describe how...Ch. 15.2 - Prob. 8AYPCh. 15.2 - How is the sense of taste related to the sense of...Ch. 15.3 - Prob. 10AYP
Ch. 15.3 - How do the conjunctiva,lacrimal apparatus, and...Ch. 15.3 - Prob. 12AYPCh. 15.3 - How does the pupil constrict? How does it dilate?Ch. 15.3 - Prob. 14AYPCh. 15.3 - Name the three chambers of the eye and the...Ch. 15.3 - Prob. 16AYPCh. 15.3 - Prob. 17AYPCh. 15.3 - Prob. 18AYPCh. 15.3 - Prob. 19AYPCh. 15.3 - Prob. 20AYPCh. 15.3 - Prob. 21AYPCh. 15.3 - Distinguish among myopia, hyperopia. and...Ch. 15.3 - Prob. 23AYPCh. 15.3 - Describe the changes that occur in a rod cell...Ch. 15.3 - Prob. 25AYPCh. 15.3 - Prob. 26AYPCh. 15.3 - Prob. 27AYPCh. 15.3 - Prob. 28AYPCh. 15.3 - Prob. 29AYPCh. 15.3 - Starting with the optic nerve, trace the action...Ch. 15.3 - Prob. 31AYPCh. 15.4 - Name the three regions of the ear, and list each...Ch. 15.4 - Describe the relationship among the tympanic...Ch. 15.4 - What are the functions of the external auditory...Ch. 15.4 - Explain how the membranous labyrinth of the...Ch. 15.4 - Describe the structure of the spiral organ.Ch. 15.4 - Explain the differences between inner and outer...Ch. 15.4 - Relate how tip links function.Ch. 15.4 - Prob. 39AYPCh. 15.4 - Contrast volume, pitch, and timbre.Ch. 15.4 - Starting with the auricle, trace a sound wave into...Ch. 15.4 - What is the importance of the sound attenuation...Ch. 15.4 - Prob. 43AYPCh. 15.4 - Describe the neuronal pathways for hearing, from...Ch. 15.4 - Prob. 45AYPCh. 15.4 - Prob. 46AYPCh. 15.4 - What is dynamic equilibrium? Whatstructures are...Ch. 15.4 - Prob. 48AYPCh. 15.4 - Prob. 49AYPCh. 15.5 - Prob. 50AYPCh. 15 - Which of these statements is not true with respect...Ch. 15 - Prob. 2RACCh. 15 - Which of these is not one of the basic tastes? a....Ch. 15 - Which of these types of papillae have no taste...Ch. 15 - Prob. 5RACCh. 15 - The ciliary body a. contains smooth muscles that...Ch. 15 - Prob. 7RACCh. 15 - Prob. 8RACCh. 15 - Prob. 9RACCh. 15 - Prob. 10RACCh. 15 - Prob. 11RACCh. 15 - Prob. 12RACCh. 15 - Prob. 13RACCh. 15 - In the retina cones that are most sensitive to a...Ch. 15 - Given these areas of the retina: (1) macula (2)...Ch. 15 - Prob. 16RACCh. 15 - Prob. 17RACCh. 15 - Which of these structures is found within or is...Ch. 15 - Prob. 19RACCh. 15 - Prob. 20RACCh. 15 - Prob. 21RACCh. 15 - Prob. 22RACCh. 15 - Prob. 23RACCh. 15 - Prob. 24RACCh. 15 - Damage to the semicircular canals affects the...Ch. 15 - Prob. 1CTCh. 15 - Perhaps you have heard that eating carrots is good...Ch. 15 - A man stares at a black clock on a white wall for...Ch. 15 - Prob. 4CTCh. 15 - Prob. 5CTCh. 15 - Prob. 6CTCh. 15 - Professional divers are subject to increased...Ch. 15 - If a vibrating tuning fork is placed against the...
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- What early experience, if any, is necessary to maintain binocular input to the neurons of the visual cortex?A. Cortical cells will always maintain binocular responsiveness, regardless of their experience.B. Cortical cells must receive some input to each eye every day.C. Cortical cells must receive an equal amount of input from the two eyes.D. Cortical cells must usually receive simultaneous input from the two eyes.arrow_forwardIf someone is born with dense cataracts on both eyes, and the cataracts are removed years later, what happens?A. The person remains permanently blind.B. The person gradually recovers all aspects of vision.C. The person gains some vision, but remains impaired on object recognition, motion vision, and depth perception.D. The person gains almost all aspects of vision, but remains greatly impaired on color perception.arrow_forwardWhich of the following statements aboutphotopic vision is false?a. It is mediated by the cones.b. It has a low threshold.c. It produces fine resolution.d. It does not function in starlight.e. It does not employ rhodopsin.arrow_forward
- In the retina are cones that are most sensitive to a particular color.Given this list of colors:(1) red (2) yellow (3) green (4) blueIndicate which colors correspond to specific types of cones.a. 2,3 b. 3,4 c. 1,2,3 d. 1,3,4 e. 1,2,3,4arrow_forwardWhat are the receptive field characteristics of cortical neurons in layer 3 of the primary visual cortex (V1)? a. Optimally responsive to facial features. b. Optimally responsive to specifically-oriented bars of light. c. Optimally responsive to small spots of light. d. All of the above. e. Optimally responsive to hand features.arrow_forwardWhat happens after damage limited to area MT? What may occur if MT is intact but area V1 is damaged? a. Damage to MT causes prosopagnosia. If MT is intact but V1 is damaged, the person can perceive faces but nothing else. b. Damage to MT causes blindness. If MT is intact but V1 is damaged, the person suffers prosopagnosia. c. Damage to MT causes motion blindness. If MT is intact but V1 is damaged, the person perceives movement but cannot identify the object. d. Damage to MT causes blindness. If MT is intact but V1 is damaged, the person cannot perceive movement.arrow_forward
- A bar of light in a specific part of the retina, with a particular length and orientation, is the most effective stimulus for a.retinal ganglion cells. b.lateral geniculate cells. c.simple cortical cells. d.complex cortical cells.arrow_forwardDecreased sensitivity to a continued stimulus is calleda. adaptation. d. conduction.b. projection. e. phantom pain.c. translation.arrow_forwardDescribe the connection of each senses to the brain (Simply explain their biological mechanisms) Essay Type. a. Vision b. Auditory c. Vestibular d. Gustatory e. Olfactoryarrow_forward
- Light resets the biological clock by a branch of the optic nerve, beginning with _____ and sending the input to _________. a. rods . . . the SCN b. cones . . . the SCN c. a mixture of rods and cones . . . the visual cortex d. ganglion cells that do not require input from rods or cones . . . the SCNarrow_forwardWhich of the following statements explains why vision is less sharp in dim light than in bright light?a. Cones are more responsive in dim light.b. There are more rods than cones in the eye.c. Many rods converge on a single ganglion.d. The dilated pupil lets in more light than the lens can focus.arrow_forwardWhich one of the following statements about photoreception is true? a. Light detection is initiated by the absorbance of light (a photon) by a photopigment molecule. b. Light detection is synonomous with vision. c. Light detection is always initiated in a rod photoreceptor located in the retina. d. Only light in the visible range (between 400 and 700 nm wavelength) can be detected by animals. e. None of the above answer choices (neither A, nor B, nor C, nor D) is true.arrow_forward
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