Muscle Movements Definitions Flashcards

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Questions and Answers

What is the definition of Flexion?

Movement toward the midline

Rotation of the palm and forearm from facing down to facing up

Increase in angle of a joint

Decrease in angle of a joint (correct)

What is the opposite of Flexion?

Extension

What does Lateral Flexion involve?

Bending the trunk or spine laterally away from the midline

What is the definition of Extension?

Increases the angle of a joint Signup and view all the answers

What is Hyperextension?

Continue the extension past anatomical position Signup and view all the answers

What is the definition of Adduction?

Movement toward the midline Signup and view all the answers

What is the opposite of Adduction?

Abduction Signup and view all the answers

What does Pronation refer to?

Rotation of the palm and forearm from facing up to facing down Signup and view all the answers

What does Supination involve?

Rotation of the palm and forearm from facing down to facing up Signup and view all the answers

What is Dorsiflexion?

Bending the foot backwards or up toward the body Signup and view all the answers

What does Inversion mean?

Twisting movement of the foot that turns the sole inward Signup and view all the answers

What is Eversion?

Twisting movement of the foot that turns the sole outward Signup and view all the answers

What does Plantar Flexion involve?

Bending the foot or hand forward or away from the body Signup and view all the answers

What does Rotation refer to in muscle movements?

A bone or whole limb rotates around an axis or joint Signup and view all the answers

What is Circumduction?

Movement of a limb or extremity to the dorsal end makes a circle while the proximal end stays in place Signup and view all the answers

What does Protraction involve?

Moving a body part forward Signup and view all the answers

What is the opposite of Protraction?

Retraction Signup and view all the answers

What does Elevation mean?

Upward movement of a body part Signup and view all the answers

What is the opposite of Elevation?

Depression Signup and view all the answers

Study Notes

Muscle Movements Overview

Flexion: Decreases the angle of a joint; opposite is extension. Example: bending the elbow to bring hand toward the body.
Extension: Increases the angle of a joint; opposite is flexion. Example: straightening a bent arm at the elbow.
Hyperextension: Extending a joint past its anatomical position, often limited by ligaments or soft tissues. Example: looking up at the ceiling to hyperextend the neck.

Lateral Movements

Lateral Flexion: Bending the trunk or spine sideways away from the midline. Example: tilting the head to the side while standing straight.
Adduction: Movement of a body part toward the midline; opposite is abduction. Example: raising the arm perpendicular to the side of the body.
Abduction: Movement of a body part away from the midline; opposite is adduction. Example: returning the arm to the side position.

Rotational Movements

Pronation: Rotation of the palm and forearm from facing upwards to downwards; opposite is supination.
Supination: Rotation of the palm and forearm from facing downwards to upwards; opposite is pronation.
Rotation: A bone or limb turns around an axis or joint. Example: rotating the head from left to right.

Foot Movements

Dorsiflexion: Bending the foot upwards toward the body, decreasing space between toes and shin.
Inversion: Twisting the foot to turn the sole inward; opposite is eversion.
Eversion: Twisting the foot to turn the sole outward; opposite is inversion.
Plantar Flexion: Bending the foot or hand forward away from the body, increasing space between toes and shin.

Circular and Linear Movements

Circumduction: A limb moves in a circle while the proximal end stays fixed. Example: making large circles with an outstretched arm while the shoulder remains stationary.

Movement of Body Parts

Protraction: Moving a body part forward; opposite is retraction. Example: pushing the jaw forward as if under-biting.
Retraction: Moving a body part backward; opposite is protraction. Example: pulling the jaw backward as if over-biting.
Elevation: Upward movement of a body part; opposite is depression. Example: closing the jaw or lifting the shoulders.
Depression: Downward movement of a body part; opposite is elevation. Example: opening the jaw wide or shrugging the shoulders.

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Description

Explore key terms related to muscle movements through this set of flashcards. Each card provides a definition and example for important concepts such as flexion, lateral flexion, and extension. Perfect for students studying anatomy or physical education!