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QUESTION 1 – Multiple Choice (30 marks)
1.1 The peripheral nervous system is comprised of
a) Brain
b) Nerves
c) Spinal cord
d) Basal ganglia
1.2 Which of the following is not a function of neuroglia
a) Phagocytosis
b) Support
c) Myelination
d) Cushioning
1.3 A dendrite function in
a) Conducting impulses towards the cell body
b) Conducting impulses away from the cell body
c) Conducting impulses towards and away from the cell body
d) Conducting impulses away from the cell body and release neurotransmitter
1.4 Ion concentration of a cell back to resting state is restored by
a) Sodium ion pump
b) Potassium ion pump
c) Sodium-potassium pump
d) None of the above
1.5 The reflex arc is composed of ___ components
a) 2
b) 3
c) 4
d) 5
1.6 Which of the following systems is required to produce a reflex
a) Only the CNS
b) Only the PNS
c) Both the CNS and PNS
d) Neither the CNS nor PNS
, 1.7 There are ____ pairs of cranial nerves
a) 12
b) 15
c) 18
d) 21
1.8 Which of the following is not a function of the parasympathetic division
a) Increased heart rate
b) Eliminates faeces and urine
c) Increased blood pressure
d) Withdraws blood from digestive organs
1.9 Which nerve is not sensory in function
a) Optic
b) Olfactory
c) Vestibulocochlear
d) Oculomotor
1.10 Fascicles are bound together by a tough fibrous sheath called,
a) Endoneurium
b) Epicardium
c) Epineurium
d) Endocardium
1.11 Smooth muscles are found in the walls of
a) Stomach
b) Bladder
c) Respiratory passages
d) All of the above
1.12 Which of the following is not a function of muscle fibers
a) Energy conservation
b) Irritability
c) Contractility
d) Extensibility
1.13 Fast glycolytic fibers have
a) High myoglobulin content
b) High glycogen stores
c) First recruitment order
d) Intermediate rate of fatigue
1.14 Slow oxidative fibers are