Anatomical Terms Of Movement Flashcards
Flexion and Extension
Flexion and extension are movements that occur in the sagittal plane. They refer to increasing and decreasing the angle between two body parts.
Flexion refers to a movement that decreases the angle between two body parts.
Extension refers to a movement that increases the angle between two body parts.
Abduction and Adduction
Abduction and adduction are two terms that are used to describe movements towards or away from the midline of the body.
Abduction is a movement away from the midline.
Adduction is a movement towards the midline.
In fingers and toes, the midline used is not the midline of the body, but of the hand and foot respectively. Therefore, abducting the fingers spreads them out.
Medial and Lateral Rotation
Medial and lateral rotation describe movement of the limbs around their long axis.
Medial rotation is a rotational movement towards the midline. It is sometimes referred to as internal rotation.
Lateral rotation is a rotating movement away from the midline.
When the knee flexes, the ankle moves closer to the buttock, and the angle between the femur and tibia gets smaller.
Flexion
___________ of the knee straightens the lower limb.
Extension
____________ of the shoulder raises the arms out to the sides of the body.
Abduction
______ of the hip squeezes the legs together.
Adduction
With a straight leg, rotate it to point the toes inward.
Medial rotation
Rotating your leg so that your toes face forward, instead of inward.
Lateral rotation
Elevation and Depression
Elevation refers to movement in a superior direction (e.g. shoulder shrug), depression refers to movement in an inferior direction.
Pronation and Supination
This is easily confused with medial and lateral rotation, but the difference is subtle. With your hand resting on a table in front of you, and keeping your shoulder and elbow still, turn your hand onto its back, palm up. This is the supine position, and so this movement is supination.
Again, keeping the elbow and shoulder still, flip your hand onto its front, palm down. This is the prone position, and so this movement is named pronation.
These terms also apply to the whole body – when lying flat on the back, the body is supine. When lying flat on the front, the body is prone.
Dorsiflexion and Plantarflexion
Dorsiflexion and plantarflexion are terms used to describe movements at the ankle. They refer to the two surfaces of the foot; the dorsum (superior surface) and the plantar surface (the sole).
Dorsiflexion refers to flexion at the ankle, so that the foot points more superiorly.
Plantarflexion refers extension at the ankle, so that the foot points inferiorly.
Your foot pointing superiorly.
Dorsiflexion
Your foot pointing inferiorly
Plantar Flexion
Inversion and Eversion
Inversion and eversion are movements which occur at the ankle joint, referring to the rotation of the foot around its long axis.
Inversion involves the movement of the sole towards the median plane
Eversion involves the movement of the sole away from the median plane