List and describe the functions of the three cranial nerves that serve the muscles of the eye.
What will be an ideal response?
The three cranial nerves are: oculomotor, trochlear, and abducens. The oculomotor is mostly motor, with branches to the inferior oblique and superior, inferior, and medial rectus muscles, as well as to the muscles of the iris and lens. The trochlear supplies mostly motor fibers to the superior oblique muscles of the eye. The abducens supplies mostly motor fibers to the lateral rectus muscles of the eye. Like most motor nerves, they also carry some sensory information for proprioception.
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Which of the following occurs when the articular cartilage is damaged?
A) The matrix begins to break down. B) The exposed surface appears rough. C) Friction in the joint increases. D) Normal synovial joint function is unable to continue. E) All of the answers are correct.
Therapeutic surgical removal of the thyroid gland was documented more than 1000 years ago. In the 19th century, a surgeon performing that procedure had only about 50% patient survival, and patient death was often unrelated to nonspecific complications such as infection or bleeding. What condition of the thyroid is so easily diagnosed that ancient surgeons would think to remove it? What hormonal
problem unrelated to thyroid hormones may account for the 50% mortality of thyroidectomy patients in the 19th century (and probably throughout history)? Why didn't the surgeons anticipate this problem? Why wasn't the mortality closer to 100%? What will be an ideal response?
A woman who is type B+ blood and is carrying an A- fetus. Choose the correct statement(s):
a. Neither Betty nor the fetus would not likely experience any antigen-antibody reactions for blood type. b. Betty would produce Rh antibodies that would pass through the placenta and cause the A- blood to agglutinate. c. Betty would experience minor agglutination if some the A- blood leaks into her blood. d. Betty would not have anti-A antibodies in her plasma. e. Both b and c are correct..
Which of the following organelles functions in protein synthesis?
A. Ribosomes B. Smooth ER C. Golgi apparatus D. All apply.