Absence of postural muscle tone is descriptive of or occurs during
A. slow-wave sleep.
B. paradoxical sleep.
C. both slow-wave sleep and paradoxical sleep.
D. neither slow-wave sleep nor paradoxical sleep.
B
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The iron of the heme unit of hemoglobin is transported in the blood by the protein ________ after the aged erythrocytes are phagocytized.
Fill in the blank(s) with the appropriate word(s).
The leading cause of death for children under 1 year of age is
A) motor vehicle accidents. B) falls. C) cardiac congenital malformations. D) sudden infant death syndrome. E) asthma.
Muscle cells have positively charged ____ ions in greater concentration outside the muscle cell than inside the cell
a. sodium b. potassium c. chloride d. calcium
The acetabular ________ is a lip of connective tissue that deepens the socket of the hip and helps stabilize the joint.
Fill in the blank(s) with the appropriate word(s).