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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Synovial-Joint-classification

Synovial Joint:Classification, Definition & Examples

Synovial Joint: A synovial joint, sometimes called diarthrosis, joins bones with a fibrous joint capsule that is continuous with the periosteum of the joined bones, constitutes the outer boundary of a synovial cavity, and surrounds[...]

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abdominal-muscles

Transversus Abdominis: Origin, Insertion, Action & Nerve Supply

Transversus Abdominis Muscle: The transversus abdominis is the deepest of all the abdominal muscles, resting internally to the internal abdominal obliques muscle. It is a thin sheet of muscle whose fibers run horizontally anteriorly. It[...]

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cardiac_conduction_system

Cardiac Conduction System 

The musculature of the atria and ventricles is capable of contracting spontaneously. The cardiac conduction system initiates and coordinates contraction. The conduction system consists of nodes and networks of specialized myocardial cells organized into four[...]

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Medulla Oblongata

Medulla – Definition,Anatomy, Location & Function

Medulla: The English word ‘Medulla’ derives from Latin word ‘medius’ meaning ‘middle’ or ‘core’ or ‘marrow’. Medulla often implies a deep region within a structure, such as the renal medulla or the medulla of the[...]

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abdominal-muscles

Rectus Abdominis: Origin, Insertion, Action & Nerve Supply

Rectus Abdominis Muscle: The rectus abdominis muscle is a long strap muscle that continues the entire length of the anterior abdominal wall. It is broader above and lies close to the midline, being separated from[...]

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upper limb muscles

Upper Extremity Muscle:Origin, Insertion, Action & Nerve Supply

Abductor Pollicis Longus Abductor Digiti Minimi Abductor Pollicis Brevis Adductor Pollicis Anconeus Biceps Brachii Brachioradialis Brachialis Coracobrachialis Deltoid Extensor Carpi Radialis Longus Extensor Carpi Radialis Brevis Extensor Carpi Ulnaris Extensor Digitorum Extensor Digiti Minimi Extensor[...]

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abdominal-muscles

Internal Abdominal Oblique: Origin, Insertion, Action & Nerve Supply

Internal Abdominal Oblique Muscle: The internal abdominal oblique is also a broad thin muscular sheet that lies deep to the external oblique. It arises from the thoraco-lumbar fascia, the lateral two-thirds of the inguinal ligament[...]

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lumbar plexus

Lumbar Plexus: Overview,Branches,Anatomy & Function

The lumbar plexus is a nerve network in the lumbar region of the body.It is formed by the first four lumbar nerves (L1-L4) and contributions of the subcostal nerve (T12).The nerves of the lumbar plexus[...]

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