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Muscular Antonio Lara …
Muscular Antonio Lara Per.2
Major functions of the muscular system
Muscles allow a person to move, speak and chew
3 types of muscles & their functions
Cardiac
The cardiac muscle contracts the heart to pump blood.
Smooth
The smooth muscle tissue that forms organs like the stomach and bladder changes to facilitate bodily functions.
Skeletal
The skeletal muscle moves bones and other structures.
Sarcomere
A structural unit of a myofibril in striated muscle, consisting of a dark band and the nearer half of each adjacent pale band
Neuromuscular junction
Is a synaptic connection between the terminal end of a motor nerve and muscle
Sliding filament theory of muscle contraction
Action potential in a muscle fiber
The muscle action potential trigger a sequence of actions that ultimately results in the contraction and relaxation of the muscle fiber
Muscle coverings
The outermost connective tissue sheath surrounding the entire muscle is known as epimysium.
Disorders associated with the Muscular system
Myasthenia gravis
Myopathy
Muscular dystophy
Multiple sclerosis
Myelitis, including poliomyelitis and dermatologists
Charcot-Marie-Tooth disease
Peripheral nephropathy
Amyotophic lateral sclerosis