Nodes of Ranvier are
A) interruptions in the myelin sheath along the course of a myelinated axon.
B) collections of immune cells in the CNS.
C) satellite cells that support neuron cell bodies in ganglia.
D) gaps between choroids plexuses where cerebral spinal fluid emerges
Answer: A) interruptions in the myelin sheath along the course of a myelinated axon.
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Semen
A. includes prostaglandins and nutrients. B. is produced by only one organ. C. consists of sperm and accessory organ secretions and not testicular products. D. is acidic.
Aldosterone increases the number of potassium channels where?
A) proximal tubule apical membrane B) proximal tubule basolateral membrane C) principal cells apical membrane D) intercalated cells basolateral membrane E) principal cells basolateral membrane
The skin receives approximately ____ of all the blood circulating through the body
a. one-fifth b. one-third c. one-fourth d. one-half
The youngest keratinocytes are found in the stratum basale.
Answer the following statement true (T) or false (F)