Exhausted from studying all night, you briefly close your eyes and your mind sta
ID: 82604 • Letter: E
Question
Exhausted from studying all night, you briefly close your eyes and your mind starts to wander. Which brain waves would be most predominant in an EEG? A. Alpha B. Beta C. Delta D. Theta Which one of the following best describes the order of a visceral reflex? A. Sensory receptor rightarrow interneuron rightarrow afferent nerve fiber rightarrow efferent nerve fiber rightarrow gland B. Sensory receptor rightarrow efferent nerve fiber rightarrow interneuron rightarrow afferent nerve fiber rightarrow gland C. Sensory receptor rightarrow afferent nerve fiber rightarrow interneuron efferent nerve fiber rightarrow gland D. Sensory receptor rightarrow efferent nerve fiber rightarrow afferent nerve fiber rightarrow interneuron rightarrow gland E. Sensory receptor rightarrow interneuron rightarrow efferent nerve fiber rightarrow afferent nerve fiber rightarrow glandExplanation / Answer
43) Ans: A
The gross brain wave activity of a brain is measured by an electroencephalogram (EEG)
During periods of relaxation, while we are still awake, our brain waves become slower, increase in amplitude and become more synchronous (mind starts to wander. These types of waves produced during that time are called alpha waves.
44)Ans:C
Sensory receptors----afferent nervous---interneurons----efferent nerve fibers-----glands
From a receptor, sensory neuron (afferent neuron) collects the information and it converts the stimulus into action potential or gradient potential (sensory transduction) sends the information to the central nervous system. An interneuron is a neuron which enables communication between afferent or efferent neurons and central nervous system. The efferent nerve fibers or peripheral nervous carries away impulse from the central nervous system to the glands or muscles.
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