Spinal nerves extending distal to the conus medullaris are collectively referred to as the
A) filum terminale.
B) cauda equina.
C) spinal meninges.
D) motor neurons.
E) denticulate ligaments.
B) cauda equina.
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How many molecules of oxygen can each molecule of hemoglobin carry?
A. 1 B. 2 C. 4 D. Approximately 100 E. Approximately 280 million
Vitamin D (calcitriol)
A) synthesis is stimulated by high calcium levels. B) is formed by sunlight and bound to plasma protein for transport. C) is formed by sunlight and synthesis is stimulated by high calcium levels. D) is bound to plasma protein for transport only. E) is formed by sunlight only.
Which of the following structures is NOT involved in the regulation of plasma calcium?
A) skeletal muscle B) kidneys C) gastrointestinal tract D) skin E) bone
The stratum _____ is the reproductive layer where nourishment is received from the capillaries.
Fill in the blank(s) with the appropriate word(s).