The cells that give rise to red blood cells, platelets, and most white blood cells are called
A. megakaryoblasts.
B. lymphatic stem cells.
C. myeloid stem cells.
D. erythroblasts.
Answer: C
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The neurons of the primary motor cortex are ________ cells
A) neuroglial B) dendritic C) pyramidal D) cortical E) astrocyte
The condition when excessive fluid loss from sweating disrupts thermoregulatory mechanisms is known as
A) thermoneogenesis. B) heat exhaustion. C) hydrosis. D) heat stroke. E) hypothermia.
The respiratory quotient is
a. the rate at which gases diffuse across the alveolar capillary membrane b. respiratory rate times tidal volume c. the ratio of O2 consumed to CO2 produced d. the ratio of CO2 produced to O2 consumed e. equal to 1.0 on a typical American diet
Which nerve arises from the brachial plexus?
A) Vagus B) Obturator C) Phrenic D) Musculocutaneous