#muscle notes

-- there are three kinds of muscles      -- cardiac      -- smooth / visceral      -- skeletal

Cardiac Muscle -- found only in the heart -- forms the wall of the heart -- contracts to circulate blood -- involuntary muscle

Smooth / Visceral Muscle -- can be called either name -- found in internal organs -- contracts to cause movement in these systems -- involuntary muscle

-- make up the muscular system

-- an organ

-- made of hundreds to thousands of muscle cells

-- muscle cells are called fibers

-- covered by epimysium

-- epimysium is a connective tissue

-- epimysium binds muscles into functional groups

-- muscles contain blood vessels

-- muscles contain nerve fibers

-- a fascicle is a bundle of muscle cells