Compare and contrast Schwann cells and oligodendrocytes.
What will be an ideal response?
Both insulate axons by creating myelin. Schwann cells, found in the PNS, are associated with a single axon. One axon may have many Schwann cells wrapped around it leaving small gaps of unmyelinated areas called nodes of Ranvier. Oligodendrocytes are found in the CNS and form myelin around portions of several axons.
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Which of the following is correctly matched with its description?
A. Glia - the conducting cell of the nervous system B. Axons - conduct action potentials away from the cell body C. Dendrite - rapidly dividing cell D. Neurons - supportive cells of the nervous system E. Axon - carry action potentials toward the cell body
Phagocytes can destroy foreign microbes only after they have engulfed these invaders
Indicate whether the statement is true or false
Which muscle is considered one of the four rotator cuff muscles?
A) Pectoralis minor B) Coracobrachialis C) Biceps brachii D) Infraspinatus
Which of the following cranial nerves is associated with the sense of smell?
A) olfactory nerve (CN I) B) oculomotor nerve (CN III) C) vagus nerve (CN X) D) optic nerve (CN II)