EXSS 380: EXAM 1 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

EXSS 380: EXAM 1 UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS

Question:
1. How the neuromuscular system initiates and coordinates muscle activity to produce movement refers to:
Answer:
muscle control

Question:
2. Movement of muscles can be modulated by sensory information provided by what system?
Answer:
peripheral nervous system

Question:
3. The acquisition of motor skills refers to:
Answer:
motor learning

Question:
4. An activity that requires voluntary movement to achieve a goal refers to:
Answer:
motor skill

Question:
5. What are the three functions of the nervous system?
Answer:
sensory integrative motor

Question:
6. The ______is superior to the foramen magnum, while the _____is inferior to the foramen magnum
Answer:
brain spinal cord

Question:
7. What are the two divisions of the peripheral nervous system?
Answer:
autonomic nervous system somatic nervous system

Question:
8. In what division of the PNS, can motor stimuli be either excitatory or inhibitory?
Answer:
autonomic nervous system

Question:
9. In what division of the PNC, can motor stimuli only be excitatory in nature?

,Answer:
somatic nervous system

Question:
10. What division of the peripheral nervous system contains the sympathetic nervous system and the
parasympathetic nervous system?
Answer:
autonomic nervous system

Question:
11. What part of the nervous system is responsible for voluntary and reflexive muscle activity and only
provide output to skeletal muscles?
Answer:
somatic nervous system

Question:
12. At what region does the axon join the soma?
Answer:
axon hillock

Question:
13. What is responsible for transmitting nerve impulses away from the cell body to other neurons, muscle
fibers, or glands?
Answer:
axon

Question:
14. Effectors refer to _____________ or __________
Answer:
muscle gland

Question:
15. The junction between neurons and other neurons or effectors is known as the:
Answer:
synapse

Question:
16. What part of the neuron contains the synaptic vesicle and neurotransmitters?
Answer:
synaptic end bulb

Question:
17. What are the three major categories of neurotransmitters?
Answer:
amino acids biogenic amines neuropeptides

, Question:
18. What neurotransmitter typically produces hyper polarization?
Answer:
GABA

Question:
19. An example of a neuropeptide neurotransmitter is:
Answer:
endorphins

Question:
20. What is the key neurotransmitter involved in skeletal muscle contractions?
Answer:
acetylcholine

Question:
21. What is responsible for increasing nerve conduction velocity in the axon and helps make signal
transmissions much quicker?
Answer:
myelin sheath

Question:
22. What is the smallest controllable neural component in terms of regulating force?
Answer:
the motor unit

Question:
23. What is one condition in which the sarcolemmal action potential is NOT obligatory?
Answer:
fatigue

Question:
24. What are the two main characteristics of 'twitch'?
Answer:
contraction time peak force

Question:
25. What are the two neural mechanisms used to increase contraction force?
Answer:
rate coding motor unit recruitment

Question:
26. contractile force is proportional to ______________and ___________
Answer:
firing frequency number of active motor units