What muscle turns the palm of the hand up?

What muscle turns the palm of the hand up?

supinator
The biceps brachii flex the forearm and work with the supinator of the forearm to rotate it so the palm faces upward.

What is the medical term for turning the palm of the hand upward?

Supination: Movement that turns the palm of the hand upward.

What movement is pronation?

Pronation describes a rotational movement of the forearm that results in the palm facing posteriorly (when in the anatomic position). Supination describes the motion of turning the palm anteriorly (Fig. 1.14).

Where are the trap muscles?

The trapezius is a muscle that starts at the base of your neck, goes across your shoulders and extends to the middle of your back. The trapezius (traps muscle) helps you move your head, neck, arms, shoulders and torso. It also stabilizes your spine and helps with posture.

What is turning the palm downward?

Supination describes the motion of turning the palm anteriorly (Fig. Most often these motions occur with the hands in front of the body to accommodate grasping and holding types of activities, so supination is considered turning the palm of the hand upward, and pronation is considered turning the palm downward.

Which motion turns the palm of the hand downward or backward?

Pronation and supination are a pair of unique movements possible only in the forearms and hands, allowing the human body to flip the palm either face up or face down. The muscles, bones, and joints of the human forearm are specifically arranged to permit these unique and important rotations of the hands.

What is elevation movement?

Elevation is movement in a superior direction. For example, shrugging is an example of elevation of the scapula. Depression is movement in an inferior direction, the opposite of elevation.

What movement is plantar flexion?

Plantar flexion is the movement that allows you to press the gas pedal of your car. It also allows ballet dancers to stand on their toes. The term plantar flexion refers to the movement of the foot in a downward motion away from the body.

Where is the infraspinatus muscle?

Your infraspinatus muscle is a thick triangular muscle located at the back of your shoulder. It’s attached to the top of your upper arm bone (humerus) and your shoulder blade (scapula). The other rotator cuff muscles are the supraspinatus, subscapularis, and the teres minor.

What do traps do?

The trapezius, commonly referred to as the traps, are responsible for pulling your shoulders up, as in shrugging, and pulling your shoulders back during scapular retraction.

What is inversion movement?

Inversion and eversion refer to movements that tilt the sole of the foot away from (eversion) or towards (inversion) the midline of the body. Inversion is the movement of the sole towards the median plane. For example, inversion describes the motion when an ankle is twisted.

Is turning or facing upward?

Pronation is turning or facing downward. Supination is turning or facing upward.