What is flexion and extension?

To flex is to decrease the angel between parts. Flexing your muscles usually results in bringing the bones attached closer together. For example, the spine is in flexion when we bend forwards. Extension is simply the opposite, increasing the angel between parts, e.g. bending backwards.

What is the definition of flexion and extension?

Flexion of the shoulder or hip is movement of the arm or leg forward. Extension is the opposite of flexion, describing a straightening movement that increases the angle between body parts. For example, when standing up, the knees are extended.

What is the difference between flexion and extension muscles?

In the limbs, flexion decreases the angle between the bones (bending of the joint), while extension increases the angle and straightens the joint.

What is an example of flexion?

Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes when performing a biceps curl. The knee flexes in preparation for kicking a ball.

What is extension movement?

An extension is a physical position that increases the angle between the bones of the limb at a joint. It occurs when muscles contract and bones move the joint from a bent position to a straight position. It is a posterior movement for joints that move backward or forward, such as the neck.

Flexion and Extension Anatomy: Shoulder, Hip, Forearm, Neck, Leg, Thumb, Wrist, Spine, Finger

What is a flexion movement?

Flexion refers to a movement that decreases the angle between two body parts. Flexion at the elbow is decreasing the angle between the ulna and the humerus. When the knee flexes, the ankle moves closer to the buttock, and the angle between the femur and tibia gets smaller.

What is muscle flexion?

Flexion: decreasing the angle between two bones (bending). Extension: increasing the angle between two bones (straightening a bend). The triceps brachii and anconeus are muscles that extend the elbow. The biceps brachii, brachialis, and brachioradialis flex the elbow.

What is extension of the arm?

An extension is when you move your arms and stick them out behind you. The muscles involved in the flexion movement include the anterior deltoid, pectoralis major and coracobrachialis. For a shoulder extension, your body uses the latissimus dorsi, teres major and minor and posterior deltoid muscles.

What is extension of the foot?

Dorsiflexion is the backward bending and contracting of your hand or foot. This is the extension of your foot at the ankle and your hand at the wrist. You can also dorsiflex your fingers and toes, though usually the term is referring to your wrist or ankle.

How do I remember my flexion and extension?

Just remember: flexion = forward. This action occurs at many joints and always brings the bones that make up a joint closer together, or closes the joint. Extension is the opposite of flexion, which means it lessens the angle between the two bones or opens the joint.

What does extension mean in PE?

Extension – straightening a joint. This occurs when the angle of a joint increases, for example, at the elbow when putting a shot.

What is the Definition of extension in anatomy?

Extension: Movement that increases the angle between two bones or two parts of the body.

What is foot flexion?

Plantar flexion is a movement in which the top of your foot points away from your leg. You use plantar flexion whenever you stand on the tip of your toes or point your toes. Every person's natural range of movement in this position is different. Several muscles control plantar flexion.

What is flexion of the ankle?

Plantar flexion describes the extension of the ankle so that the foot points down and away from the leg. When in a standing position, this would mean pointing the foot towards the floor. Plantar flexion has a normal range of motion from about 20 to 50 degrees from the resting position.

What is toe flexion?

Toe flexion is produced by contraction of the extrinsic and intrinsic toe flexor muscles. The major extrinsic flexors of the toes are the flexor hallucis longus and the flexor digitorum longus, which flex the great toe and the lesser toes, respectively.

What is flexion of arm?

Arm flexion represents rotation in the anatomic plane such that the distal humerus moves ventrally. It represents raising the arm and isolated flexion can achieve approximately 150-170° of movement. The opposite movement is arm extension and contributes to the combined movement of shoulder circumduction.

What is flexion of forearm?

Forearm flexion is rotation in the anatomic plane such that the radius and ulna move anteriorly. It occurs primarily in the articulation between the humerus and ulna and can achieve approximately 150° of movement. It is the opposite of forearm extension. brachialis (primary)

Is a shoulder press shoulder flexion?

Dumbbell strict shoulder press is a great shoulder flexion exercise.

What are the extensors?

extensor muscle, any of the muscles that increase the angle between members of a limb, as by straightening the elbow or knee or bending the wrist or spine backward. The movement is usually directed backward, with the notable exception of the knee joint.

What is the definition of extensors?

Definition of extensor

: a muscle serving to extend a bodily part (such as a limb)

What are flexors and extensors?

The key difference between flexor and extensor muscles is that flexor muscles facilitate the process of flexion in the body, while extensor muscles facilitate the process of extension in the body. Flexion is a bending movement where the angle between two body parts decreases.

What is extension of the shoulder?

Extension of the shoulder relates to the free movement of the upper arm lowering from a raised position in front of the body allowing the entire extremity to return to a normal resting posture at the waist and continuing behind the body permitting limited movement of the arm behind the back.

What is flexion of knee?

Bending of the knee is known as flexion. The opposite movement is extension. Flexion and extension are controlled by opposing muscle groups.

What is flexion and extension of the ankle?

Flexion and extension at the ankle are referred to as dorsiflexion and plantarflexion, respectively (Figure 2). “Dorsi” refers to the top of the foot, while “plantar” refers to the bottom of the foot. The term “flexion” is incorporated to indicate movement upwards (dorsiflex) or downwards (plantarflex).

What muscles move your toes?

Extensor digitorum longus: This is one of three muscles that pull the foot upward. It also extends the toes, lifts the toes, and turns the foot outward. Flexor digitorum longus: This muscle in the calf and foot flexes the second through fifth toes and points the toes downward.