Extensor Indicis Proprius

Extensor Indicis: Origin, Insertion, Nerve Supply & Action

Extensor Indicis  The extensor indicis muscle allows the index finger to be independent of the other fingers during extension. Origin: Originates from the posterior surface of the ulna and interosseous membrane, distal to the extensor[...]

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Abductor Pollicis Longus

Abductor Pollicis Longus: Origin, Insertion, Nerve Supply & Action

Abductor Pollicis Longus The abductor pollicis longus muscle is situated immediately distal to the supinator muscle. In the hand, its tendon contributes to the lateral border of the anatomical snuffbox. Origin: Originates from the interosseous membrane and[...]

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Extensor Carpi Radialis Longus and Brevis

Extensor Carpi Radialis Longus and Brevis: Origin, Insertion, Nerve Supply & Action

Extensor Carpi Radialis Longus and Brevis The extensor carpi radialis muscles are situated on the lateral aspect of the posterior forearm. Due to their position, they are able to produce abduction as well as the extension[...]

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Anconeus

Anconeus: Origin, Insertion, Nerve Supply & Action

Anconeus The anconeus muscle is situated medially and superiorly in the extensor compartment of the forearm. It is blended with the fibers of the triceps brachii, and the two muscles can be indistinguishable. Origin: Originates from[...]

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Supinator

Supinator: Origin, Insertion, Nerve Supply & Action

Supinator The supinator muscle lies on the floor of the cubital fossa. It has two heads, which the deep branch of the radial nerve passes between. Origin: It has two heads of origin. One originates from[...]

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Brachioradialis

Brachioradialis: Origin, Insertion, Nerve Supply & Action

Brachioradialis The brachioradialis is a paradoxical muscle. Its origin and innervation are characteristic of an extensor muscle, but it is actually a flexor at the elbow joint. The brachioradialis muscle is most visible when the[...]

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Flexor Carpi Radialis

Forearm Muscles: Origin, Insertion, Nerve Supply & Action

Forearm muscles are divided into two compartment- Anterior compartment Posterior compartmet

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pectoral muscles

Shoulder Girdle Muscle: Origin, Insertion, Nerve Supply & Action

The shoulder girdle is also known as the pectoral girdle.The pectoral girdle connects the upper limb to the axial skeleton on the right and side left of the body. There is an anatomical connection between[...]

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serratus_anterior_muscle

Serratus Anterior: Origin, Insertion, Nerve Supply & Action

Serratus Anterior: The Serratus Anterior muscle is utilized in activities which draw the scapula forwards. It is utilized vigorously in push-ups and bench presses. Winged scapula is a designator of having a weak Serratus Anterior[...]

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Sternocleidomastoid

Sternocleidomastoid : Origin,Insertion,Nerve Supply & Action

The sternocleidomastoid muscle is also known as sternomastoid and commonly abbreviated as SCM, is a paired muscle in the superficial layers of the side of the neck. It is one of the most sizably voluminous[...]

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