Hormones
Nervous System
Skeletal Muscle
100
This endocrine gland releases the catecholamines epinephrine and norepinephrine.
What is the adrenal medulla?
100
Post-ganglionic neurons of this division of the autonomic nervous system release the neurotransmitter norepinephrine.
What is the sympathetic nervous system?
100
This muscle action results in force being produced as the muscle shortens.
What is a concentric muscle action?
200
Insulin binding to its tyrosine kinase receptor is an example of this mechanism of hormone action.
What is altering membrane transport?
200
These extensions of the neuron cell body serve to receive input from sensory organs or adjacent neurons.
What are dendrites?
200
This neurotransmitter released at the neuromuscular junction stimulates the muscle fiber to depolarize.
What is acetylcholine?
300
Alpha cells of the pancreas synthesize and release this hormone.
What is glucagon?
300
These muscle proprioceptors function as a length detector in muscle.
What are muscle spindles?
300
This structure consists of a motor neuron and all the muscle fibers it innervates.
What is a motor unit?
400
Muscle glycogenolysis is initiated by either the cyclic AMP mechanism or calcium ions binding to this protein.
What is calmodulin?
400
This principle describes the progressive recruitment of motor units as a function of motor neuron size.
What is the size principle?
400
The breakdown of ATP in skeletal muscle is accomplished via this enzyme.
What is (myosin) ATPase?
500
Epinephrine and norepinephrine bind to these receptors on target tissues.
What are adrenergic receptors?
500
This division of the peripheral nervous system is responsible for carrying neural messages from the spinal cord to skeletal muscle fibers.
What is the somatic (voluntary) nervous system?
500
These undifferentiated cells play a key role in muscle growth and repair.
What are satellite cells?
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