Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Chapter 12, Problem 7CR
Summary Introduction
To review:
The location and function of both skeletal muscle and smooth muscle in the eyes.
Introduction:
The tough outer coat of the eye is known as sclera and is popularly termed as the “white of the eye.” It covers the outer surface except for the front, known as the cornea, through which light passes. The sclera is continuous with the cornea. The eye has both skeletal and smooth muscle. The smooth muscle of the eye is known as the ciliary muscle.
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The eye contains both skeletal muscle and smooth muscle. Describe where each is located and indicate their functions.
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Chapter 12 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 12 - Prob. 1QCCh. 12 -
2. Should the use of all hand-held devices,...Ch. 12 - Do you approve of the law in five states that a...Ch. 12 -
1. List the five classifications of receptors in...Ch. 12 - Prob. 2CRCh. 12 -
3. Describe what information the somatic...Ch. 12 - Name the five special senses.Ch. 12 - Compare and contrast fast pain, slow pain, and...Ch. 12 - Prob. 6CRCh. 12 - Prob. 7CR
Ch. 12 - Prob. 8CRCh. 12 - Prob. 9CRCh. 12 - Prob. 10CRCh. 12 - What do the receptors in the skin for light touch...Ch. 12 - Prob. 2TYCh. 12 - Prob. 3TYCh. 12 - Receptor adaptation results when: a. sensory...Ch. 12 - Prob. 5TYCh. 12 - Different pitched sounds will result in...Ch. 12 - Prob. 7TYCh. 12 - Prob. 8TYCh. 12 - Prob. 9TYCh. 12 - Prob. 10TYCh. 12 - Prob. 11TYCh. 12 - Prob. 12TYCh. 12 - Prob. 13TYCh. 12 - Prob. 14TYCh. 12 - Which of the following can be corrected with...Ch. 12 - With the eyes closed, would an astronaut in outer...Ch. 12 - Why do you suppose that you are not normally aware...Ch. 12 - Prob. 3AWKCh. 12 - Prob. 4AWKCh. 12 - Prob. 5AWKCh. 12 - Prob. 6AWKCh. 12 - Prob. 7AWK
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- Awareness of a stimulus is called a ________.arrow_forwardDescribe the anatomy of the eye. What is the function of each of these anatomical structures? (there are five structures) Provide real life examples of these structures!arrow_forwardDescribe the function and the innervation of both the sphincter and dilator muscles of the pupil (in the iris of the eye).arrow_forward
- The eye is responsible for VISION. Complete the sentences below to review the accessory structures of the eye: Selections: eyelashes, eyebrows, lacrimal gland, conjunctiva, extraocular muscles, eyelids Attached to the eye are the (eyelashes, eyebrows, lacrimal gland, conjunctiva, extraocular muscles, eyelids) ["", "", "", "", "", ""] that allow us to point our eyes in various directions. The anterior portion of each eye is protected by the (eyelashes, eyebrows, lacrimal gland, conjunctiva, extraocular muscles, eyelids) ["", "", "", "", "", ""] . These structures have (eyelashes, eyebrows, lacrimal gland, conjunctiva, extraocular muscles, eyelids) ["", "", "", "", "", ""] projecting from their edges, which protect against dust and airborne particles, and their internal surface is lined by the (eyelashes, eyebrows, lacrimal gland, conjunctiva, extraocular muscles,…arrow_forwardCite importance of performing light reflexes of the eye.arrow_forwardDescribe the function of each of the followingstructures in the eye: sclera, cornea, lens, choroid,and ciliary process.arrow_forward
- Protects and shapes the eyeball; provides a sturdy anchoring site for extrinsic eye muscles. Blood vessels that supply nutrition to most of the eyes' structures (excluding the lens and cornea). Contains only cones; provides detailed color vision. Lacks photoreceptors; where optic nerve exits the eye. Consists of a pigmented layer and a neural layer. [Choose ] [Choose ] [Choose ] [Choose] [Choose]arrow_forwardUsing a line diagram, show how parallel rays of light are brought to a focus on the retina. Explain how this focus is maintained as the distance from the object to the eye is increasedor decreased (that is, explain accommodation).arrow_forwardDescribe how the ciliary muscle controls the shape of the lens.arrow_forward
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