Which of the following statements about Marfan's syndrome is false?
A) It results in short, stubby fingers.
B) It results from a mutation.
C) It affects connective tissue structures.
D) It affects epiphyseal cartilages.
E) It may also cause cardiovascular problems.
A
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Which of the following is true regarding red blood cells?
A) They are anucleate. B) They survive for approximately one year. C) They have a biconvex shape. D) They are produced in the spleen. E) They primarily carry carbon dioxide.
The blood testis barrier is to newly formed sperm cells as the blood thymus barrier is to ________
A) plasma cells B) white pulp C) T lymphocyte precursors D) mast cells
Osteoporosis is characterized by
a. reduced bone mass as a result of diminished deposition of the organic matrix of bone b. abnormal bone calcification c. hypocalcemia d. both a and b e. none of the above
Tina falls and fractures her pisiform bone. What part of her body was injured?
A) foot B) forearm C) wrist D) hand E) ankle