Card Set Information
40-50% of of total body mass
long, unbranched fiber
fast rates of contraction
it can be controlled bu us
found only in heart
it has intercalated disks
short, branching fibers
slower rates of contraction
involuntary muscle type
where is smooth muscle found?
within the walls of many hollow organs specially in the digestive system
stomach, esophagus, and large/small intestines
short, cigar-shaped cells
very slow rate of contraction
where are most flexors located?
on the anterior of the body
where are most extensors located?
where are most adductors located?
where are most abductors located?
the angle of a joint and lesses the distance between bones that lie on either side of the join
the angle at a joint and increases the distance between bones that lie on either side of the joint.
if an angle of extension is over 180 degrees is called what?
movement of a limb
the midline (generally along a frontal plane) Splaying or fanning out the toes or fingers is also an abduction
movement of a bone around it longitudial axis
a combination of flexion, extension, abduction, and adduction that produces a circular motion of a body limb, usually around a ball and socket joint
movement of the palm of the hand from anterior to posterior (PALM DOWN)
movement of the sole of the foot medial
movement of the sole of the foot lateral
bending of the ankle joint dorsally (standing on one's heels)
flexing foot downward (standing on one's toes)
cords of dense (fibrous) irregular connective tissue that connect muscles to bones
muscle cells (fibers) are clustered in this region
2 point of attachment in muscles
origin and insertion
least movement point of attachment of a muscle
most moveable point of attachment of a muscle
insertion point will always what?
have a tendancy to move towards the origin
a connective tissue sheath that covers muscle cells
groups of muscles
connective tissue that surround fascicles
connective tissue sheath that surrounds