PTA Learning Vocab

What is an Isometric contraction?

A muscle action where the muscle generates force without any change in length, or any nearby joint movement.

What is an example of an Isometric Contraction?

Holding a plank, Wall sit.

What is an Eccentric Contraction?

Muscle activley generate force while getting longer.

What is an example of Eccentric Contraction?

Lowering a dumbell, walking downhill.

What is the meaning of Superficial in Anatomy?

Closer to the surface of the body.

Give an example of the term superficial.

The skin is superficial to the musclea.

What is a concentric contraction?

Muscle activation where the muscle shortens while it generates enough force to overcome the an external load.

What is an example of a concentric contraction?

Bicep curl, elbow working in upward motion to curl a dumbell.

What is extension, and give example.

A movement where that increases angle between body parts, or bones at a joint.

ex-Straightening the arm from a bent position.

What does the definition deep mean and give example?

A structure or body part furthest away from the surface of the body.

Ex- bones are deep to the skin.

What is the meaning of Abduction?

Movement of a body part away from the midline of the body (Usually limbs or digits.)

Give an example of abduction.

Spreading fingers away from each other.

What is the definition of flexion?

When the muscle contracts bringing two bones closer together.

Give an example of flexion.

Tucking your chin down to your chest.

What is the meaning of adduction?

The movement of a body parts towards the middle line of the body. Or toward the body.

What is an example of Adduction.

Lowering your raised arms straight down to the torso.

What is the meaning of elevation.

The upward movement of the body parts.

What is an example of elevation?

Lifting the lower jaw to close.

What is the meaning of depression?

The downward movement of body parts.

What is an example of depression?

Opening the lower part of jaw.

What is the meaning of retraction?

Moving a body part towards the back of the body

What is an example Retraction on the body.

Pulling shoulders blades back towards the middle of the spine.

What is the meaning of protraction

The movement of the body part sliding forward away from the middle of the body.

Give an example of Protraction.

Shoulder blades sliding forward from the middle of the spine.

What is the meaning of inversion?

Movement that tilts the sole of the feet towards the middle of the body.

What is the meaning of eversion?

The movement of the sole of the foot moving outward from the middle of the body.

What is the meaning of Plantarflexion?

the movement of the ankle that points your toes and foot downward, away from your shin.

What is the meaning of Dorsiflexion?

he upward bending movement at the ankle joint that brings the top of your foot (the dorsum) closer to your shin.