In the embryonic differentiation of a normal male:
A. undifferentiated gonads develop into testes during the fifth week of embryonic life.
B. the Wolffian ducts regress.
C. Mullerian inhibiting substance is absent.
D. testosterone directly stimulates development of the epididymis, vas deferens, and seminal vesicles.
E. testosterone directly stimulates development of the penis and scrotum.
D
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Inflammation due to a urinary tract infection will cause which of the following abnormalities in the urine?
A) pyuria B) urobilinogenuria C) ketonuria D) renal tubular acidosis
A stem cell divides to give rise to two differentiated cells.
Answer the following statement true (T) or false (F)
Ions are ________.
A. electrically neutral B. formed by the gain or loss of protons from the nucleus C. electrically charged D. nonpolar atoms E. not soluble in water
In the emergency room you examine a patient experiencing angina pectoris. Which of the following is least likely to be associated with your patient?
A) severe, crushing pain deep to the sternum B) ischemia to a part of his myocardium C) a partial or complete blockage of a coronary artery D) decreased oxygen exchange in the lungs E) pain relief with rest