Skeletal muscle anatomy Flashcards
Epimysium
dense irregular connective tissue sheath
fibers merge with muscle facia—
between adjacent muscle and muscle and skin
Perimysium
loose connective tissue that divides muscles into bundles of muscle fibers called FASICLES
allows passage for blood vessels and nerves
Endomysium
loose connective tissue separating individual muscle fibers within each fascle
fasicles
bundles of muscle fibers grouped together
motor neurons
specialized nerve cells that are responsible for contracting skeletal muscle
each motor neuron controls several muscle fibers
skeletal muscle has rich supply of blood and nerves T/F
True
myoblasts
embryonic cells that fuse together to create skeletal muscle
skeletal muscle appearance
multinuclieated and striated
can get up to 1 foot long
the number of muscle fibers form birth will ________ but muscles will ______ in size
stay the same
hypertrophy (get bigger)