Questions for PPT MUSCLE CONTRACTION
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26 Terms
What is skeletal muscle attached to?
Bones of skeleton
What is the function of a skeletal muscle??
Pull bone or skin to cause movement
Is skeletal muscle Multinucleate or uninucleate?
Multinucleate
Where is cardiac muscle found?
In the walls of the heart
Is cardiac muscle Multinucleate or uninucleate
Uninucleate
What is contractility?
It is muscles forcibly shortening when stimulated
What is excitability?
The ability of muscle to respond to a stimulus
What is extensibility ?
The ability of muscle to stretch beyond its resting length
What is elasticity?
The muscles ability to recoil after being stretched
Name all the muscle tissues
Skeletal muscle
Cardiac muscle
Smooth muscle
Name all the muscle characteristics?
Contractility
Exciteability
Extensibility
Elasticity
Muscle has 4 functions name them ?
Produce movement
Maintain posture
Stabilize joints
Generate heat
How does muscle produce movement ?
Locomotion and manipulation
By moving blood through the circulatory system
Moving food through the digestive system
How does muscle maintain posture ?
By counteracting the pull of gravity
Is the origin of muscle more or less moveable ?
The origin Less moveable
Is the insertion if a muscle more or less moveable?
The insertion is more moveable
When muscle shorten where does the insertion move?
Towards the origin
Can our muscles push?
No muscle always pull they never push
Name the order of the muscle tisuues ?
Epimysium
Perimysium
Fascicle
Endomysium
Muscle fiber
Sarcolemma
Sarcoplasm
What is the epimysium ?
It's the dense irregular connective tissue surrounding the muscle
What is the perimysium?
It's the connective tissue surrounding each fascicle
What is a fascicle?
The bundle of muscle fibers within the epimysium
What is the endomysium?
The connective tissue sheath around each muscle cell
What is muscle fiber?
Each individual muscle cell
What is the sarcolemma
The plasma
What is the sarcoplasm ?
Cytoplasm of muscle cell