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WorksheetsNerve Fibers and Smooth Muscle Quiz
Total questions: 20
Worksheet time: 10mins
Which fibers conduct fastest?
Type A alpha
Type B
Type C
Type A gamma
Which fibers are unmyelinated?
Type A alpha
Type B
Type C
Type A beta
Which fibers are responsible for pain and temperature?
Type A delta
Type A alpha
Type B
Type C
Which fibers are responsible for autonomic preganglionic transmission?
Type A alpha
Type B
Type C
Type D
Type C fibers are involved in?
Touch
Proprioception
Slow pain
Fast pain
What is the function of Type A alpha fibers?
Motor to skeletal muscle
Sensory touch
Pain
Temperature
Which of the following is NOT a function of nerve fibers?
Conduction of impulses
Nutrition
Reflexes
Sensation
Smooth muscle contraction is regulated by?
Troponin
Ca-Calmodulin complex
ATP only
Actin only
Smooth muscle lacks which protein?
Actin
Myosin
Calmodulin
Troponin
Smooth muscle contraction is primarily dependent on?
Extracellular calcium
Intracellular calcium
Sodium
Potassium
Latch bridge mechanism is characteristic of?
Cardiac muscle
Skeletal muscle
Smooth muscle
All muscles
In smooth muscle, calcium binds to?
Actin
Myosin
Calmodulin
Troponin
What enzyme is activated in smooth muscle contraction?
Myosin light chain kinase (MLCK)
Adenyl cyclase
Guanylyl cyclase
Protein kinase A
What is the primary neurotransmitter for smooth muscle contraction?
Acetylcholine
GABA
Dopamine
Glutamate
Which ion plays a major role in nerve conduction?
Calcium
Sodium
Potassium
Chloride
Which muscle type shows multi-unit arrangement?
Skeletal muscle
Smooth muscle
Cardiac muscle
Multi-unit smooth muscle
Wallerian degeneration occurs in?
CNS
PNS
Both CNS and PNS
None
Saltatory conduction occurs in?
Myelinated fibers
Unmyelinated fibers
Both
Cardiac fibers
Refractory period is longer in?
Cardiac muscle
Smooth muscle
Skeletal muscle
All same
Which is true about slow muscle fibers?
Fatigue quickly
Rich in mitochondria
Low myoglobin
White fibers
