A sensory receptor characterized peripherally as a free nerve ending which centrally uses glutamate and/or substance P as neurotransmitters would most likely be a
A) chemoreceptor.
B) mechanoreceptor.
C) thermoreceptor.
D) nociceptor.
E) free receptor.
D
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In compact bone, ________ connect adjacent lacunae, thereby providing pathways for nutrients and other materials to pass between osteocytes.
A. canaliculi B. osteonic canals C. perforating canals D. blood vessels E. lamellae
Blood flows from the subclavian vein into the
A. axillary vein. B. brachiocephalic vein. C. external carotid vein. D. inferior vena cava. E. superior vena cava.
Which of the following is not accomplished by a chemical released from activated phagocytes?
a. Decreasing plasma iron so that it is unavailable for bacterial multiplication b. Stimulating histamine release from mast cells c. Stimulating the synthesis of viral-blocking enzymes d. Inducing the development of fever e. Stimulating proliferation of white blood cells
Which joints are responsible for flexion and extension at the elbow?
A. Glenohumeral and humeroulnar B. Humeroradial and radioulnar C. Humeroradial, radioulnar, and radiocarpal D. Humeroulnar, humeroradial, and radioulnar E. Humeroulnar and humeroradial