Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 36, Problem 2.2A
Complete the following
a. Explain why an eye has a blind spot.
b. Describe the photopupillary reflex.
c. What difference did you note in the size of the pupils when one eye was exposed to bright light and the other eye was shielded from the light?
d. Describe the accommodation pupillary reflex.
e. Describe the convergence reflex.
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A 43-year old patient with a lesion in the left occipital cortex would present with
a. Intact pupillary reflexes in the left eye, but loss of vision from the left visual field
b.Loss of pupillary reflexes in the right eye and vision from the right visual field
c.Loss of pupillary reflexes in the left eye and vision from the left visual field
d.Intact pupillary reflexes in the right eye, but loss of vision from the right visual field
Axons from the vestibular nerve project to each of the cranial nuclei that control the extrinsic eye muscles.
A. True
B. False
Match the cranial nerve to the method of testing.
a. Proper vocal quality
b. Test of tongue movements
c. Demonstration of a shoulder shrug
d. Eye movement (down and medial)
e. Pupillary responses
f. Ability to smile, raise eyebrows
g. Tests of the hearing and balance
h. Smell identification (not usually tested)
i. Ability to swallow
j. Eye movement (lateral)
k. Ability to close the jaw against resistance,
presence of facial sensation
I. Visual acuity checking
1. Olfactory nerve
2. Optic nerve
3. Oculomotor nerve
4. Trochlear nerve
5. Trigeminal nerve
6. Abducens nerve
7 Facial norve
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Based on the Origin
Cranial Nerve Functions
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Chapter 36 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 36 - As a person ages, the elasticity of the lens a....Ch. 36 - Visual acuity is measured using a a. metric ruler....Ch. 36 - Color blindness is a characteristic in of males a....Ch. 36 - The blind spot is located at the of the eye. a....Ch. 36 - Astigmatism results from a defect in the a....Ch. 36 - Only males can inherit the color blindness...Ch. 36 - Nearsightedness is also called myopia. a. True...Ch. 36 - A convex lens can be used to correct hyperopia. a....Ch. 36 - Explain why small objects e not lost from our...Ch. 36 - Complete the following a. What is meant by 20/70...
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- Match the following: Cranial nerve to its function. Answers may be use more than once. Hypoglossal nerve + Accessory nerve - Vestibulocochlear nerve Trochlear nerve ◆ Trigeminal nerve A. Facial sensation, mastication, corneal reflex B. Tongue movement C. Downward and lateral gaze of the eye D. Balance and hearing E. Head movementarrow_forwardWhich of the following statements are true of the physiology of vision? (Read carefully and select all the correct statements.) A. Cones are the receptors for color. B. The lens adjusts for distant vision, and the cornea adjusts for near vision. C. The optic nerve is formed by the ganglion neurons of the choroid layer. D. For near vision, the pupils dilate and the eyes converge. E. The optic chiasma is a crossing of optic nerve fibers that contributes to binocular vision. F. The visual areas are in the occipital lobes of the cerebrum. G. The area of the retina for the best color vision is the optic disc. H. Rods are most numerous at the periphery of the retina.arrow_forwardMatch the brain injury to the appropriate change in function. Use Figure 20.19 to locate the area injured. a. cessation of breathing b. loss of equilibrium c. loss of use of left arm d. loss of vision e. loss of pain localization in the shoulder ________ 16. The effect of a blow to the back of the head that damages this area. ________ 17. The effect of alcohol on this area. ________ 18. The effect of a head injury (i.e., from diving into a pool) that forces the dens into this area. ________ 19. The effect of a stroke that damages this area. ________ 20. The effect of a stroke that damages this area.arrow_forward
- d. the eye One of the following statements is not true, which? ON Select one: a. The dorsal column-medial lemniscal pathway transmits discriminative touch and conscious proprioception signals to the cerebral cortex. b. The spinothalamic pathway transmits nondiscriminative sensations (pain, temperature, pressure) to the primary somatosensory cortex. c. The dorsal column-medial lemniscal pathway decussates in the medulla and then ascends through the pons and midbrain to the thalamus. O d. The spinocerebellar tract is a tract originating in the spinal cord and terminating in the same side (ipsilateral) of the cerebellum. O e. In the spinothalamic pathway, axons of the second-order neurons decussate at the medulla then enter the lateral and ventral funiculi as the spinothalamic tract, and ascend to the thalamus Next pagearrow_forwardWhich of these statements is not true with respect to olfaction?a. Olfactory sensation is relayed directly to the cerebral cortex withoutpassing through the thalamus.b. Olfactory neurons are replaced about every 2 months.c. The olfactory cortex is involved in the conscious perception of smell.d. The secondary olfactory areas are responsible for visceral andemotional reactions to odors.e. The olfactory cortex is in the occipital lobe of the cerebrum.arrow_forwardDiscuss the importance of performing the Pupillary Light Reflex test. Why is Pupillary Dark Reflex test necessary to perform in the clinic?arrow_forward
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