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PDF Download FREE AND STUDY GAMES ABOUT EXAM 3 A&P 1 REVIEW Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -98 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: ependymal cells
Answer:
line the central cavities of the brain and spinal column
Question 2: axon hillock
Answer:
connects to axon
Question 3: acetylcholine
Answer:
functions as a neurotransmitter
Question 4: cardiac
Answer:
only in heart, striated, involuntary
Question 5: sympathetic
Answer:
1) pathways exit at middle spinal cord, deals with immediate threats to the internal environment, "flight-or-fight" response
Question 6: leakage channel
Answer:
controls movement of ions across neuronal membrane
Question 7: list the chemical classes of neurotransmitters?
Answer:
acetylcholene, GABA, adrenergic, neuropeptides
Question 8: what is the role of acetylcholinesterase?
Answer:
enzyme catalyzing breakdown of acetylcholine that functions as neurotransmitters
Question 9: norepinephrine
Answer:
what gets your blood pumping and heart pounding
Question 10: the central nervous system includes?
Answer:
brain and spinal cord,and nerves Question 11: an impulse from one nerve cell is communicated to another nerve cell by the.....
Answer:
synapse
Question 12: autonomic nervous system neurons
Answer:
regulates smooth muscle, cardiac muscle and glands, involuntary
Question 13: 2 divisions of the autonomic nervous system are?
Answer:
parasympathetic, sympathetic
Question 14: Myofibrils
Answer:
where muscle contractions occur, contain sarcomeres, exhibit striations
Question 15: Destruction of Acetylcholine
Answer:
breaks down ACh, prevents continued muscle contraction
Question 16: oligodendrocytes
Answer:
form myelin sheaths in the brain CNS
Question 17: symptoms
Answer:
frequent falls, fatigue, motor skills difficulty
Question 18: Sliding filament model of contraction
Answer:
during contraction, thin filaments slide past thick filaments, actin and myosin overlap more
Question 19: white matter
Answer:
component of central nervous system, in the brain and superficial spinal cord
Question 20: the arbor vitae is?
Answer:
cerebellar white mater
Question 21: neuroglia
Answer:
small cells surround and wrap delicate neurons
Question 22: Neuromuscular Junction (NMJ)
Answer:
primary neurotransmitter that produces muscle contraction on skeletal muscle, involuntary on auto pilot
Question 23: describe the nervous system integrative function?
Answer:
adds to memory, produces thought, makes decision
Question 24: Striations
Answer:
series of ridges, furrows or linear marks
Question 25: 3 types of muscle tissue
Answer:
skeletal, cardiac, smooth
Question 26: myelin sheath
Answer:
surrounds the core of a nerve fiber or axon
Question 27: Broca's area...
Answer:
linked to speech production
Question 28: functions of the oligondendrites include?
Answer:
provide support and insulation to axons
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