splenius-muscles

Splenius Muscles: Origin, Insertion, Nerve Supply & Action

The superficial muscles in this group are-splenius Splenius capitis  Splenius cervicis Both are associated with movements of the head and neck.  

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iliocostalis longisimus

Intermediate Back Muscles : Origin, Insertion, Nerve Supply & Action

There are three intermediate intrinsic back muscles – Iliocostalis Longissimus Spinalis. Together these muscles form a column, known as the erector spinae.  

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Semispinalis muscle

Deep Intrinsic Muscles: Origin, Insertion, Nerve Supply & Action

Deep intrinsic muscles are located under the erector spinae. They are a group of short muscles, associated with transverse and spinous processes of the vertebral column. Three major muscles in this group are- Semispinalis Multifidus[...]

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pectoralis-minor

Pectoralis Minor: Origin, Insertion, Nerve Supply & Action

The pectoralis minor muscle is a thin, triangular muscle, situated at the upper part of the chest and beneath the pectoralis major in the human body.The Pectoralis Minor is the smallest muscle of the two[...]

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Extensor Pollicis Longus

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

Extensor Pollicis Longus The extensor pollicis longus muscle has a larger muscle belly than the EPB. Its tendon travels medially to the dorsal tubercle at the wrist, using the tubercle as a ‘pulley’ to increase the[...]

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Flexor Pollicis Longus

Pronator Quadratus: Origin, Insertion, Nerve Supply & Action

Pronator Quadratus: A square shaped muscle found deep to the tendons of the FDP and FPL. Origin: Originates from the anterior surface of the ulna. Insertion: Attaches to the anterior surface of the radius. Function:[...]

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Flexor Pollicis Longus

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

Flexor Pollicis Longus This muscle lies laterally to the FDP. Origin: Originates from the anterior surface of the radius, and surrounding interosseous membrane. Insertion: Attaches to the base of the distal phalanx of the thumb.[...]

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Flexor Digitorum Profundus

Flexor Digitorum Profundus: Origin, Insertion, Nerve Supply & Action

Flexor Digitorum Profundus Origin: Originates from the ulna and associated interosseous membrane. At the wrist, it splits into four tendons, that pass through the carpal tunnel. Insertion: Attach to the distal phalanges of the four[...]

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Sensory Supply of the Median Nerve

Median Nerve:Course,Motor,Sensory & Common Injuries

Median Nerve: The median nerve originates from lateral and medial cords of the brachial plexus Lateral root arises from the anterior divisions of superior and middle trunks, has contributions from ventral roots of C5-C7 Medial[...]

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Radial Nerve Common Injuries

Radial Nerve:Course,Motor,Sensory & Common Injuries

Radial Nerve: The radial nerve is a major peripheral nerve of the upper limb.It originates from the brachial plexus, carrying fibers from the ventral roots of spinal nerves C5, C6, C7, C8 & T1.

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