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embryology

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5 Posts

usmlebuzz
Forum Elite

Topics: 93
Posts: 263

08/20/03 - 06:20 PM

A 25-year-old male and his wife come to the clinic complaining of difficulty conceiving. The couple has been trying to get pregnant for one year without success. A physical exam of the patient is negative for abnormalities. The physician sends a same of his ejaculate for analysis. Which of the following statements is true regarding the male reproductive system?

A. Dihydrotestosterone is responsible for the absence of female internal structures.

B. Emission is under parasympathetic control.

C. Erection is under sympathetic control.

D. Mullerian inhibiting factor is responsible for development of external genitalia.

E. Testosterone is responsible for the development of Wolffian ducts

rajeev
Forum Junior

Topics: 5
Posts: 62

08/21/03 - 08:32 AM

hmmmm ..... e ?

usmlebuzz
Forum Elite

Topics: 93
Posts: 263

08/21/03 - 02:35 PM

absolutely correct grin

Study.Turtle
Forum Newbie

Topics: 2
Posts: 13

05/14/05 - 08:24 AM

I thought...

The development of the wolffian (Paramesonephric) ducts is influenced by the MIF.

Testosterone is important in determining the development of the external genitalia, not internal.

ssrpk
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Topics: 154
Posts: 2,819

06/09/05 - 10:18 PM

testosterone is responsible indeed for internal genitalia , it is dihydrotestosterone which is responsible for ext. genitalia [5-alpha reductase def.- ambiguous ext. genitalia]

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