In the prostate, testosterone is converted primarily to dihydrotestosterone (DHT) through the activity of:
A. type 3 17? dehydrogenase
B. CYP 19 (aromatase)
C. 5? reductase
D. 1? hydroxylase
E. 11? dehydrogenase
ANS: C
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The conversion of fibrinogen to fibrin is catalyzed by the enzyme
A) fibrinogen-converting enzyme. B) plasmin. C) factor VIII. D) thrombin. E) prothrombinase.
The signals that control your handwriting travel down the spinal cord in which tracts?
A. Vestibulospinal B. Spinocerebellar C. Tectospinal D. Tract E. Corticospinal
The liver contains endocrine cells
Indicate whether this statement is true or false.
Answer the following statements true (T) or false (F)
1. The straight, full extended position of a joint is regarded as 0°. 2. When solving problems related to linear/angular conversion, the units for angular displacement must be in revolutions. 3. If flexion of a joint is positive in direction when viewed from one side, the same motion will be negative in direction when viewed from the opposite side. 4. The most common unit of time is second. 5. Once a thrown ball is released, the tangential and radial acceleration become zero.