Exercise Physiology Exam: Practice Quiz
This is a practice quiz for the Exercise physiology exams. The human body undergoes different processes with the aim of sustaining life, and one of the most important systems within the body is the nervous system. This system helps to ensure there is a motor function, and a physiologist is expected to have a good understanding of the system and the types of exercise suitable for a patient. Do give it a shot and get to see how well you do!
- 1.Along with the nervous system, which other system controls the internal environment. (homeostasis)
- A.
Muscular
- B.
Lymphatic
- C.
Endocrine
- D.
Digestive
- 2.The peripheral nervous system consists of the brain and spinal cord.
- A.
True
- B.
False
- 3.Afferent fibers are fibers that transmit impulses from receptors to the CNS.
- A.
True
- B.
False
- 4.Skeletal muscles are innervated by neurons in the motor division.
- A.
True
- B.
False
- 5.Glands are innervated by the somatic motor system.
- A.
True
- B.
False
- 6.Which structure in the neuron generates the action potential?
- A.
Axon terminal
- B.
Axon hillock
- C.
Cell body
- D.
Node of Ranvier
- 7.In the peripheral nervous system, the myelin sheath is formed by oligodendrocytes.
- A.
True
- B.
False
- 8.Post-ganglionic fibers of the autonomic nervous system are non-myelinated.
- A.
True
- B.
False
- 9.Generally, what is the charge of neurons at rest?
- A.
-40 to -65 mv
- B.
-50 to -70 mv
- C.
-30 to -60 mv
- D.
-40 to 75 mv
- 10.Which is true about the sodium-potassium pump?
- A.
It pumps 2 K+ in and 3 Na+ out
- B.
It pumps 1 K+ in and 3 Na+ out
- C.
It pumps 3 K+ in and 2 Na+ out
- D.
It pumps 4 K+ in and 2 Na+ out
- E.
It pumps 3 Na+ in and 2 K+ out
- 11.What happens during an action potential?
- A.
Inside the axon becomes more positive due to an influx of pottasium
- B.
Inside the axon becomes more negative due to an influx of pottasium
- C.
Inside the axon becomes more positive due to an influx of sodium
- D.
Inside the axon becomes more negative due to an influx of sodium
- E.
None of the above
- 12.What happens during repolarization?
- A.
Sodium leaves the cell rapidly
- B.
Pottasium leaves the cell rapidly
- C.
Sodium channels close
- D.
None of the above
- 13.Which neurological disease destroys the myelin sheath of axons?
- A.
Multiple Sclerosis
- B.
Parkinson's disease
- C.
Huntington's disease
- D.
Epilepsy
- E.
None of the above
- 14.The "All or none" the law states that once a nerve impulse is initiated, it will travel the length of the neuron.
- A.
True
- B.
False
- 15.______ and _____ causes depolarization of the postsynaptic membrane. (neurotransmitter and ion)
- A.
Potassium (K+)
- B.
Sodium (Na+)
- C.
Gaba
- D.
Acetylcholine
- E.
Norepinephrine
- 16.The synapse of a neuron is where synaptic vesicles are stored.
- A.
True
- B.
False
- 17.The dendrites are the receptive regions of the neuron.
- A.
True
- B.
False
- 18.Temporal summation is the summing from several different pre-synaptic neurons.
- A.
True
- B.
False
- 19.Which type of post-synaptic potential causes hyperpolarization?
- A.
Excitatory post-synaptic potential
- B.
Inhibitory post-synaptic potential
- C.
Action potential
- D.
Both can cause hyperpolarization
- 20.The gaps between Schwann cells are called nodes of Ranvier.
- A.
True
- B.
False
- 21.Which type of proprioceptors are found in ligaments and around joints?
- A.
Free nerve endings
- B.
Muscle spindles
- C.
Pacinian corpuscles
- D.
Golgi-type receptors
- 22.Which proprioceptor detects the rate of joint rotation?
- A.
Golgi-type receptors
- B.
Golgi-tendon organ
- C.
Muscle spindles
- D.
Pecinian corpuscle
- 23.The muscle spindle is also known as the "length detector".
- A.
True
- B.
False
- 24.As a result of stimulation to the Golgi tendon organ, excitatory neurons send ESPS to muscle fibers.
- A.
True
- B.
False
- 25.Which proprioceptor is sensitive to touch and pressure?
- A.
Muscle spindle
- B.
Free nerve endings
- C.
Golgi tendon organ
- D.
Pacinian corpuscles
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