The buccinator muscle is in the
A) buttocks. B) chest. C) cheek. D) bladder.
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Question 2) In an ECG pattern, the PQ interval indicates how long it takes for the cardiac impulse to
travel from the
A) SA node through the AV node. B) SA node to the atrial muscle fibers.
C) SA node to the Purkinje fibers. D) AV node to the atrial muscle fibers.
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Question 3) Which is the correct sequence for differentiation of a red blood cell?
A) Hematopoietic stem cell, erythrocyte, hematoblast, erythroblast
B) Hematopoietic stem cell, erythroblast, erythrocyte, reticulocyte
C) Hematopoietic stem cell, erythroblast, reticulocyte, erythrocyte
D) Hematopoietic stem cell, hemocytoblast, erythrocyte, erythroblast
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Question 4) The medullary cavity of a long bone is lined with a thin cellular layer called
______.
Fill in the blank(s) with correct word
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Question 5) During the absolute refractory period, a stimulus of high intensity may trigger a nerve
impulse.
Indicate whether the statement is true or false
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Question 6) Growth hormone signals the release of IGF-1 from the
A) liver. B) spleen.
C) pancreas. D) pituitary gland.
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Question 7) Cells in a lymph node that engulf and destroy damaged cells, foreign substances, and
cellular debris are
A) lymphocytes. B) cytokines.
C) macrophages. D) mast cells.
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Question 8) Which of the following terms and definitions is correct?
A) Cerebral cortex-a thin layer of gray matter forming the outermost part of the
cerebrum
B) Cerebral cortex-a thick layer of white matter forming the innermost part of the
cerebrum
C) Limbic system-interconnected brain structures that activate skeletal muscle
D) Hemisphere dominance-the largest cerebral hemisphere with the thickest cerebral
cortex
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Question 9) The space between neurons is called the neuronal space.
Indicate whether the statement is true or false
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Question 10) Platelets are best described as
A) immature leukocytes. B) cytoplasmic fragments of cells.
C) lymphoid cells. D) giant, multinucleated cells.
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