Dendrites ________.
A. are usually highly branched
B. carry impulses away from the cell body
C. are usually surrounded by myelin
D. perform metabolic processes for the cell
Answer: A
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Match the following:
A) Suspensions B) Colloids C) Solutions 1) Heterogeneous, will not settle. 2) Heterogeneous, will settle. 3) Homogeneous, will not settle. 4) Will not scatter light.
Which of the following normally functions as the main pacemaker of the heart?
a. the atrioventricular node b. the sinoatrial node c. the Purkinje fibers d. the node of Ranvier e. the bundle fibers
An increased secretion of watery saliva will result when the
A. basal nuclei of the cerebrum activate somatic pathways to salivary glands. B. glossopharyngeal nuclei of the pons activate somatic and sympathetic pathways to the salivary glands. C. salivary nuclei of the cerebrum activate sympathetic pathways to salivary glands. D. basal nuclei of the brainstem activate sympathetic pathways to salivary glands. E. salivary nuclei of the brainstem activate parasympathetic pathways to salivary glands.
Interleukins are chemical signals by which immune cells communicate with each other.
Answer the following statement true (T) or false (F)