An elderly neighbor was diagnosed with an astrocytoma tumor in the brain. This cancer affects what types of cell?
a. ependymal cells
b. microglia
c. astrocytes
d. satellite cells
c. astrocytes
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How is the heart involved as an endocrine gland?
What will be an ideal response?
To be reabsorbed by the tubules, how many distinct barriers must a substance cross?
a. two b. three c. four d. five e. six
Which statement is incorrect?
a. The myenteric plexus is located in the submucosa. b. The intrinsic plexuses innervate smooth muscle and exocrine and endocrine glands. c. The plexuses are influenced by extrinsic nerves. d. The plexuses coordinate local digestive tract activity. e. There are two major networks of nerve fibers forming the plexuses of the gut.
The Golgi tendon reflex
A. helps to gain balance through a complex series of muscular contractions. B. helps to overcome pain. C. prevents muscles from contracting. D. prevents skeletal muscles from tensing excessively. E. aids in sending sensory information to the muscles.