Muscle Overview
Skeletal Muscle
Events at the Neuromuscular Junction
Smooth and Cardiac
Miscellaneous
100
The special characteristics of muscle tissue are:
Excitability, Extensibility, Contractility and Elasticity
100
Name the three parts of connective tissue sheaths found in skeletal muscle.
Epimysium, Perimysium, Endomysium
100
The stimulus for a nerve impulse.
action potential
100
Type of muscle found primarily in internal organs.
smooth
100
What is ATP and why is it necessary?
Adenosine Triphosphate; it is the cell's source of energy
200
Name the types of muscle tissue.
skeletal, cardiac and smooth
200
These fibers are known as thick filaments and are partly responsible for contraction.
Myosin
200
Channels open that allow this element to enter the axon terminal.
Calcium
200
Appears unorganized due to the branched fibers
cardiac
200
Process that yields 2 ATP per 1 molecule of glucose
anaerobic respiration
300
Name at least 4 muscle functions.
produce movement, maintain posture, generate heat, stabilize joints, protection of organs, peristalsis, constriction/dilation
300
A bundle of muscle cells is called this.
fascicle
300
Calcium causes these to rupture and release their contents via exocytosis.
synaptic vesicles
300
Does not contain striations
smooth
300
A muscle cell is performing this type of respiration when at rest...
aerobic
400
This is also known as a muscle's insertion point.
The movable bone
400
This filament is called thin due to its slender appearance.
Actin
400
This neurotransmitter causes sodium and potassium to shift around resulting in depolarization.
Acetylcholine (Ach)
400
Is striated in appearance
cardiac and skeletal
400
What has to occur for myosin heads to bind to actin filaments?
Calcium has to bind to troponin, which in turn moves tropomyosin out of the way. ATP then allows the myosin head to be released.
500
This is also known as the muscle's origin.
The immovable or less movable bone
500
List the organizational levels of skeletal muscle.
Muscle to fascicle to muscle fiber to myofibril to sarcomere to myofilament
500
Explain which enters the muscle cell more - sodium or potassium.
More sodium rushes in the muscle fiber than leaves. Less potassium leaves the fiber.
500
The term used to describe the movement of food through the digestive tract.
peristalsis
500
Describe the Sliding Filament Theory.
Answers will vary.
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