HUMAN ANAT+CNCT+POLLEV LBCC >IC<
14th Edition
ISBN: 9781259349461
Author: McKinley
Publisher: MCG CUSTOM
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Chapter 11, Problem 3CR
Discuss why the eye moves slightly medially during the contraction of either the superior or inferior rectus muscle.
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Identify the eye muscles shown below:
A
D
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https://images.app.goo.gl/UCGP9NUBSktZbeB38
Lateral surface, right eye
Strabismus (stra-biz′mu˘ s) is a condition in which one or both eyes deviatein a medial or lateral direction. In some cases, strabismus is caused by aweakness in either the medial or the lateral rectus muscle. If the lateralrectus of the right eye is weak, in which direction does the eye deviate?
Strabismus, a misalignment of the eyeball caused by an imbalance in the extrinsic eye muscles, is also called lazy eye or wandering eye. Identify the extrinsic eye muscle that would cause lateral strabismus of the right eye.
Chapter 11 Solutions
HUMAN ANAT+CNCT+POLLEV LBCC >IC<
Ch. 11 - What are the bony attachments for all the muscles...Ch. 11 - Prob. 2WYLCh. 11 - Prob. 3WYLCh. 11 - Prob. 4WYLCh. 11 - Which muscle protracts the tongue?Ch. 11 - Prob. 6WYLCh. 11 - The unilateral contraction of which muscle causes...Ch. 11 - Describe the erector spinae, and briefly discuss...Ch. 11 - Prob. 9WYLCh. 11 - Prob. 10WYL
Ch. 11 - Prob. 11WYLCh. 11 - Prob. 1MCh. 11 - The geniohyoid muscle a. depresses the hyoid bone...Ch. 11 - Prob. 2MCCh. 11 - When this large muscle contracts, the vertical...Ch. 11 - Prob. 4MCCh. 11 - The muscle that does not cause some lateral...Ch. 11 - Prob. 6MCCh. 11 - Prob. 7MCCh. 11 - Prob. 8MCCh. 11 - Prob. 9MCCh. 11 - Prob. 10MCCh. 11 - Prob. 1CRCh. 11 - Compare and contrast the functions of the...Ch. 11 - Discuss why the eye moves slightly medially during...Ch. 11 - Prob. 4CRCh. 11 - Distinguish between suprahyoid and infrahyoid...Ch. 11 - Describe the difference in action between...Ch. 11 - Prob. 7CRCh. 11 - Prob. 8CRCh. 11 - Prob. 9CRCh. 11 - Prob. 10CRCh. 11 - Prob. 1DCRCh. 11 - Prob. 2DCR
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- Which extrinsic eye muscles abduct the eye (move the eye laterally)?arrow_forwardIf a patient has a damaged lateral rectus muscle, which eye movement would be impaired?arrow_forwardMatch the Eye Muscle with its action. Lateral rectus Moves eyeball superiorly Medial rectus [Choose ] [Choose Preserve medial stability of the eyeball Moves eyeball inferiorly Preserve lateral stability of the eyeball Preserve rotational stability of the eyeball Moves eyeball medially Moves eyeball laterally Moves eyeball superiorly Superior rectus Inferior rectus Inferior oblique & Superior oblique (Choose]arrow_forward
- Name the muscles responsible for movement of the eyeball and describe each movement.arrow_forwardThe globe of the eye has been made transparent. Click on the origin of the inferior oblique muscle. aarrow_forwardSelect the best answer or answers from the choices given: Which of the following are intrinsic eye muscles? (a) superior rectus, (b) orbicularis oculi, (c) smooth muscles of the iris and ciliary body, (d) levator palpebrae superioris.arrow_forward
- Extrinsic Eye Muscles Origin Insertion Action Superior Rectus Inferior Rectus Medial Rectus Lateral Rectus Superior Oblique Inferior Oblique Superior oblique muscle Trochlea Trochlea Superior rectus Superior oblique -Superior oblique tendon Superior rectus muscle Medial rectus Lateral - rectus Lateral rectus muscle Inferior -Inferior rectus oblique Common Inferior rectus muscle Inferior oblique muscle tendinous ring (a) Lateral view of the right eye (b) Anterior view of the right eyearrow_forwardWhich of the following extrinsic eye muscles listed does not originate from the common tendinous ring? (a) superior oblique, (b) inferior oblique, (c) superior rectus, (d) inferior rectus.arrow_forwardSKLELETAL MUSCLES OF THE CAT Define or provide purpose of the ff: (2-3 sentences) 1. splenius 2. subscapularis 3. epitrochlearis 4. quadriceps femoris 5. agonist 6. synergist 7. levatorarrow_forward
- Name the muscle responsible for bringing change in the focal length of the eye lens?arrow_forwardWhen a patient is asked to look to the left, her right eye moves to the left, but her left eye does not. Which extrinsic eye muscle is not functioning properly?arrow_forwardDefine optic stalkarrow_forward
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