A complete lesion of the abducens nerve will cause the eye to look inward. Why?
A. Paralysis of the lateral rectus muscle leaves the pull of the medial rectus muscle unopposed.
B. Paralysis of the medial rectus muscle leaves the pull of the lateral rectus muscle unopposed.
C. Paralysis of the lateral rectus muscle opposes the pull of the medial rectus muscle.
D. The lateral rectus muscle pulls the medial rectus muscle.
ANS: A
Rationale: A complete lesion of the abducens nerve will cause the eye to look inward because the paralysis of the lateral rectus muscle leaves the pull of the medial rectus muscle unopposed. A person with this lesion will be unable to voluntarily abduct the eye and will have double vision.
You might also like to view...
The standard error of estimate (SEE) for _____ is ±3.5 percent.
A. hydrostatic weighing B. air displacement C. skinfold thickness analysis D. girth measurements E. dual energy x-ray absorptiometry
The basic definition of health literacy refers to one’s ability to
A. navigate the health care system successfully. B. obtain and successfully use health information. C. describe symptoms to a doctor. D. achieve maximum wellness.
Which type of diabetes occurs during pregnancy?
A. type 1 B. gestational C. hypoglycemia D. type 2
List at least four factors that affect body weight and a person's tendency to become overweight or obese
What will be an ideal response?