Muscle Tissue Properties + Origin & Insertion

Automaticity

the ability of a muscle to contrast without the involvement of a nerve supply

Contractility

the ability of the skeletal muscle to contract (shorten)

The bicep muscle contracts when the arm is flexed is an example of…

Contractility

Elasticity

the ability of the skeletal muscle fibers to resume their resting length when a stretching force is removed

When a spring is stretched and then released, it returns to its original length is an example of…

Elasticity

Excitability

the ability of the skeletal muscle to be stretched

An example of __________, is in the hamstrings and calf muscles during a toe touch

Extensibility

True or False

Skeletal muscles play a vital role in directional movement of the skeleton

True — at both ends of the muscle, a bone is attached to it through tendons

Origin

attachment site that does not move when the muscle contracts

Insertion

attachment site that does move during contractions

the ________ is typically closer to the midline than the ________

origin, insertion

The _________ is important for being an anchor during movement

origin

A and B are and example of…

Origin points

C is an example of…

Insertion point

Tendons

attaches muscle to bone

Ligaments

attaches bone to bone

_________ are stretchy, less stable

tendons

_________ are joint stabilizers, stable

ligaments

tendon/muscles are capable of being…

strained

ligaments are capable of being…

sprained