A. form a protective coating over nerve axons
B. affect the speed nerve impulses
C. block the reception of acetylcholine
D. aid a nerve’s receptivity to neurotransmitters by increasing the number of receptor sites available
Related Mcqs:
- The myelin sheath serves to ____________?
A. break down epinephrine
B. bypass the nodes of Ranvier
C. decrease the speed of natural transmission
D. increase the speed of natural transmission - Which is most likely to occur in a patient diagnosed with demyelinating disease in which myelin degenerates from around the bodies of axons?
A. rerouting of nerve impulses
B. slower never conduction times
C. cortical brain lesions
D. faster never conduction times - One of the followings plays a vital role in nutrition of neurons and their protection by myelin sheath:
A. Axons
B. Dendrites
C. Neuroglia
D. Nissl’s granules - The main function of the vestibular organs is to __________________?
A. provide a sense of balance
B. provide the ability to taste
C. provide a sense of touch
D. provide an ability to feel an emotion - Which of the following scans provides information on both the structure and function of the brain?
A. EEG
B. CAT
C. MRI
D. PET - What is the function of the medulla?
A. Coordination of movement
B. Temperature regulation
C. Vital functions
D. Higher thought processes - Parkinson’s disease appears to be a function of:
A. damage to glia cells
B. degeneration of neurons that use dopamine as a neurotransmitter
C. overgeneration of dopamine of a neurotransmitter
D. agonistic chemical action on the receptor sites of the cerebrum - One function of glial cells is to:
A. mimic the effects of neurotransmitters
B. stimulate the production or hormones
C. control heartbeat and breathing
D. provide nutrients to interneurons - Who defined “Psychology as the science of immediate experience with consci- ousness being the main subject matter”?
A. E.B. Titchener
B. William James
C. Sigmund Freud
D. Wilhelm Wundt
E. Both A. & D. - While selecting a psychological test for personnel selection, main concern regarding the test is _____________?
A. Objectively
B. Ease of administration
C. Validity
D. Cost
E. None of these
