Contracting the gastrocnemius muscles to elevate the body on the toes involves a ________ lever
A) first-class
B) second-class
C) third-class
D) fourth-class
E) fifth-class
B
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The MOST common cause of Addisonian crisis is:
A) overwhelming stress. B) a severe acute infectious process. C) abrupt termination of corticosteroid use. D) acute failure of one or both of the adrenal glands.
Individuals with ________ have only one sex chromosome, and it is an X chromosome.
A) Trisomy 21 B) Down's syndrome C) Turner's syndrome D) Fragile-X syndrome E) Klinefelter's syndrome
Appositional growth deposits a new layer of bone
A. in the epiphyseal plate of long bones. B. in the secondary ossification center of the epiphyses. C. on the surface of the bone. D. on cancellous, but not compact bone. E. in interstitial areas.
Endocrine glands
A. secrete hormones directly into the bloodstream. B. help maintain homeostasis. C. are ductless glands. D. are the organs of the endocrine system. E. All of the choices are correct.