Front | Back |
What is CONTRACTILITY?
|
The property of skeletal muscle that allows us to produce movement
|
What are muscles role in MOVEMENT?
|
Mobility, respiration, and digestion
|
What are muscles role in STABILITY?
|
Maintain posture, and hold bones in place
|
What are the muscles role in COMMUNICATION?
|
Speech, facial expressions, writing
|
What are muscles role in CONTROL OF BODY OPENINGS AND PASSAGES?
|
Sphincter muscles around eyelids, pupils, and mouth control admission of light, food, and drink
|
What are the muscles role in HEAT PRODUCTION?
|
Produce 85% of our bodies heat
|
What are muscle fibers?
|
The basic structural unit of a muscle, amount determines size of muscle.
|
What are Fasciculi?
|
Bundles of muscle fibers
|
What do groups of fasciculi form?
|
The muscle
|
What holds the muscle fibers and fasciculi together?
|
Connective Tissue
|
What is the functions of connective tissue in muscles?
|
Connect muscles to other structures, Provide route for nerves and blood vessels to reach muscle fibers, provide framework for contraction to be transfered to bone.
|
What is the endomysium?
|
Thin sheath INSIDE MUSCLE surround each muscle fiber and binds to adjacent fibers.
|
What is the Perimysium?
|
A dense layer AROUND each fasciculi that divides muscle into compartments.
|
What is the Epimysium?
|
Dense irregular connective tissue ON THE MUSCLE that separates from surrounding tissues and will continue as the tendon.
|
What is the anatomy of a muscle fiber?
|
Extremely long and multinucleated, contains several myofibrils, each fiber contains specialized membrane called a sarcolemma.
|