Small, oddly shaped bones that fill gaps between bones of the skull are called ________ bones
A) irregular
B) sesamoid
C) sutural
D) sagittal
E) tendon
Answer: C
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EPSPs (excitatory postsynaptic potentials) occur when
A) more potassium ions than usual leak out of a cell. B) more calcium ions than usual leak out of a cell. C) chloride ions enter a cell. D) extra sodium ions enter a cell. E) hyperpolarizations occur.
The main function of serous fluid is to
A. facilitate the diffusion of oxygen across the respiratory membrane. B. improve adhesion of the lungs to the thoracic wall. C. lubricate and reduce friction between pleural membranes around the lung.
The ________ layer of the serous membrane is attached to the surfaces of organs in the body cavities.
Fill in the blank(s) with the appropriate word(s).
Which of the following is true regarding lactose intolerance?
A) The stomach produces inadequate amounts of lactase. B) Lactose-intolerant infants cannot digest dairy fat and are at risk of starvation. C) The person cannot digest any type of monosaccharide. D) The intestinal crypts are not producing the enzyme lactase. E) The enzyme maltase begins to digest lactose.