Which of the following is an example of a specialized sensory receptor cell that is known as a "separate cell" ?
a) Corpuscle of touch (Meissner corpuscle)
b) photoreceptor cell in retina
c) lamellataed (Pacinian) corpuscle
d) hair root plexus
e) astrocyte
b
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Growth hormone exerts its effects on growth
a. by stimulating production of somatomedins. b. by directly invoking gene activity. c. by elevating blood glucose levels. d. by increasing fat metabolism. e. by increasing thyroid hormone levels.
Descending tracts of the central nervous system that conduct impulses down the spinal cord are concerned with ____ functions
a. sensory b. motor c. afferent d. interneuron
What unique feature is present only on the thoracic vertebrae?
A) transverse foramina B) dens (odontoid process) C) superior and inferior costal facets D) vertebral foramina
The spinal cord begins at the ________ and ends at the ________.
A. foramen magnum; first lumbar vertebrae B. fifth cervical vertebrae; coccyx C. foramen magnum; sacrum D. second cervical vertebrae; first lumbar vertebrae