MUSCULAR SYSTEM Flashcards
3 types of muscle
Skeletal
Smooth
Cardiac
large, cigar-shaped, multinucleate cells
that cover our bone and cartilage
framework
Skeletal Muscle
Bundle of muscle fibers
Fascicles
delicate connective
tissue which indirectly attaches the muscle to bone, cartilage, or another
connective tissue covering, and
allows the body to be strong and stable
Aponeurosis
tough connective tissue that connects muscle to bone, and allows the body to move and be flexible
Tendon
coarser fibrous membrane that wraps several
sheathed muscle fibers
Perimysium
delicate connective tissue sheath that encloses each muscle fiber
endomysium
connective tissue which
covers the entire muscle
epimysium
skeletal, striated, and voluntary
Skeletal Muscle
●visceral, non-striated, and involuntary
●spindle-shaped, uninucleate, and surrounded by scant endomysium
smooth muscle
✓ Smooth muscle
●are arranged in layers, one running
circularly and the other longitudinally
●As the two layers alternately
contract and relax, they change the
size and shape of the organ
●Smooth muscle contraction is slow
and sustained
what are the two layers of smooth muscle?
Circular layer
Longitudinal layer
What is the factor of the smooth muscle’s alternate contraction?
They change the size and shape of the organ
striated and involuntary. cushioned by small amounts of endomysium and are arranged in spiral or figure 8–shaped bundles
Cardiac muscle
Cardiac muscles are branching cells joined by special gap junctions called?
Intercalated discs
