What are the 7 functions of muscle
Body Movement
Maintain Posture
Respiration
Produce body heat
Communication
Construction of organs and vessels
Heart Beat
What are the 4 properties of muscles
Contractility, Excitability, Extensibility and Elasticity
What is contractility?
ability to shorten when an adequate stimulus is received
What is excitability?
ability to receive and respond to a stimulus
what is extensibility?
ability to lengthen when an adequate stimulus is received
what is elasticity?
ability to return to standard shape
What are the 3 muscle types?
Skeletal Muscles, Cardiac muscles and Smooth muscles
Skeletal Muscles location, function, nuclei type and appearance
Attached to bone
Body movement
Voluntary Control
Striated
Multinucleate
Cardiac Muscle’s location, function, nuclei type, and appearance
Found in Heart
Involuntary Contraction
Single Nuclei
Intercalated disks
Circulate blood
Smooth Muscle’s location, function, nuclei type, and appearance
Found in blood vessels, glands, etc
Spindle Shaped
Single Nuclei
Involuntary contraction
No striations
What are the 4 muscle components?
Muscle, Fascicle, Muscle Fiber and Myofibril
what is a Muscle?
Groups of fascicle bundles
what is a Fascicle?
Groups of muscle fibers surrounded by connective tissue
what is a Muscle Fiber?
Single Muscle cell comprised of myofibrils
what is a Myofibril?
Contractile unit within muscle cell
____ muscle causes digestion of your food
smooth muscle
___ causes muscles to shorten
contractility
___ feature allows cardiac muscle cells to work in sync with one another
intercalated discs
___ muscle type has the longest cells and many nuclei?
Skeletal muscle
write the correct order from largest to smallest
muscle, fascicle, muscle fiber, myofibril, myofilament
___ is another name for single muscle cell
True