Muscle Physiology
Muscle Physiology Quiz
Test your knowledge on muscle physiology and the intricacies of the neuromuscular system with this engaging quiz! Whether you are a student, educator, or just a curious learner, this quiz will challenge your understanding of motor and sensory neurons, action potentials, and other fundamental concepts.
Key Features:
- Multiple choice questions
- Immediate feedback
- Suitable for all levels
Motor neurons are also called what?
Afferent
Efferent
Sensory Neurons are also called what?
Afferent
Efferent
A motor neuron's cell body is where?
At end of axon (inside spinal cord)
Along axon (outside spinal cord)
Each neuron contains what
Nucleus, axon, dendrites and terminal branches
Nucleus
Overview of neural circuitry?
Spindle - interneuron - muscle
Spindle - sensory neuron - interneuron - lower motor neuron - muscle
What initiates nervous command?
Cerebral cortex
Motor cortex
Does a reflex require any thought input?
Yes
No
Ions move...?
Up the concentration gradient
Down the concentration gradient
What is the resting voltage of neurons?
-70v
-90v
What is the resting voltage of skeletal muscle?
-70v
-90v
What is an action potential?
A wave of depolarisation that travels along an axon to stimulate another neuron or muscle fibre
A sea of membrane depolarisation that does not travel along the axon and stimulate another neuron
What is the function of the myelin sheath?
Speed up propogation
Slow down propogation
Electrophysiologic ecording?
1) resting membrane potential 2) depolarisation 3) overshoot 4) repolarisation 5) afterhyperpolarisation 6) return to resting potential
1) resting membrane potential 2) repolarisation 3) overshoot 4) depolarisation 5) afterdehypolarisation 6) return to resting membrane potential
What is the absolute refractory period?
During depolarisation, neuron unable to respond to another stimulus, Na+ channels already open, cant open more
During repolarisation, neuron responds only to very strong stimulus, K+ channels open (Na+ closed, could open again)
What is the relative refractory period?
During depolarisation, neuron unable to respond to another stimulus, Na+ channels already open, cant open more
During repolarisation, neuron responds only to very strong stimulus, K+ channels open (Na+ closed, could open again)
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