abdominal-muscles

Abdominal Muscles: Origin, Insertion, Action & Nerve Supply

The abdominal muscles of the external abdominal obliques, internal abdominal obliques, rectus abdominis and the transversus abdominis form the anterior and lateral abdominal wall. Working together these muscles form a firm wall that protects the[...]

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flexor poloicis longus

Adductor Pollicis:Origin, Insertion, Action & Nerve Supply

The adductor pollicis is a muscle in the hand that has two heads: transverse and oblique & functions to adduct the thumb.  

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flexor poloicis longus

Lumbricals Muscles:Origin, Insertion, Action & Nerve Supply

The lumbricals are intrinsic muscles of the hand that flexes the metacarpophalangeal joints and extends the interphalangeal joints.  

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PAD & DAB

Dorsal Interossei  Muscles:Origin, Insertion, Action & Nerve Supply

The dorsal interossei are four muscles in the back of the hand that performs to abduct the index, middle, and ring fingers and assists in flexion at the metacarpophalangeal joints and extension at the interphalangeal[...]

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PAD & DAB

Palmar Interosseous Muscles:Origin, Insertion, Action & Nerve Supply

The palmar interossei are three small muscles in the hand that lies between the metacarpal bones and are attached to the ring,  index, and little fingers.  

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flexor poloicis longus

Opponens Pollicis:Origin, Insertion, Action & Nerve Supply

The opponens pollicis is a small, triangular muscle in the hand, which functions to oppose the thumb. It is one of the three thenar muscles, lying deep to the abductor pollicis brevis and lateral to[...]

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flexor poloicis longus

Abductor Digiti Minimi:Origin, Insertion, Action & Nerve Supply

The abductor digiti minimi muscle situated on the ulnar border of the palm of the hand. It forms the ulnar border of the palm and defines the hypothenar eminence of the palm together with the[...]

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flexor poloicis longus

Flexor Digiti Minimi Brevis:Origin, Insertion, Action & Nerve Supply

The flexor digiti minimi brevis is a hypothenar muscle in the hand, it lies lateral to the abductor digiti minimi.  

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flexor poloicis longus

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

The abductor pollicis brevis muscle is a flat & thin muscle located just under the skin. It is a thenar muscle and consequently contributes to the bulk of the palm’s thenar eminence.  

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ulnar claw

Claw Hand & Ulnar Paradox

Ulnar Claw: The ulnar claw is a deformity that is seen in long standing ulnar nerve damage at the wrist. It affects the little and ring fingers of the hand. These fingers are hyperextended at[...]

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