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26 09, 2018

Infraspinatus Muscle

By Dr. Joseph H Volker | 2018-09-27T11:31:23+00:00 September 26th, 2018|Anatomy, Muscles, Upper Limb|0 Comments

The infraspinatus is a thick triangular muscle, which occupies most of the infraspinous fossa. It is among the four Rotator Cuff muscles acting as the mechanical link between the posterosuperior and anterior parts of the rotator cuff. Origin of Infraspinatus Muscle Infraspinatus muscle originates from the medial two-thirds of the infraspinatous fossa by tendinous fibres from [...]

24 09, 2018

Pronator Teres

By Dr. Joseph H Volker | 2018-09-26T04:18:00+00:00 September 24th, 2018|Anatomy, Muscles, Upper Limb|0 Comments

The pronator teres muscle is found on the palmar side of the forearm, below the elbow. It is assisted by the pronator quadratus to perform its major role i.e, to rotate the forearm palm-down. This position is also referred to as pronation. Origin of Pronator Teres Muscle The pronator teres muscle originates from two heads: A superficial head [...]

21 09, 2018

Teres minor

By Dr. Joseph H Volker | 2018-09-26T04:19:51+00:00 September 21st, 2018|Anatomy, Muscles, Upper Limb|0 Comments

Teres minor is among the four muscles that contribute to the making of the Rotator Cuff. Its shape is long and narrow and sometimes it may blend into infraspinatus. The primary function of teres minor is to keep the humerus steady in the glenoid fossa in the shoulder movement. Origin The Teres minor [...]

8 08, 2018

Flexor Pollicis Longus

By Dr. Joseph H Volker | 2018-08-30T08:37:23+00:00 August 8th, 2018|Anatomy, Muscles, Upper Limb|0 Comments

The flexor pollicis longus muscle starts from the surrounding half of the anterior side of the interosseous membrane along with the anterior side of the radius. Through upper two-third of the anterior side of the radius under the anterior oblique line and attaching part of the interosseous membrane. Flexor Pollicis Longus [...]

8 08, 2018

Muscles of the Posterior or Back of Forearm

By Dr. Joseph H Volker | 2018-08-30T11:14:21+00:00 August 8th, 2018|Anatomy, Muscles, Upper Limb|0 Comments

The muscles of the posterior of the forearm are categorized into two classes: superficial deep The muscles that form the back of the forearm are commonly known as Extensor Muscles. These are provided by the radial nerve. Superficial Muscles of the back of Forearm The superficial muscles of the back of forearm are [...]

8 08, 2018

Abductor Pollicis Longus

By Dr. Joseph H Volker | 2018-09-28T16:43:06+00:00 August 8th, 2018|Anatomy, Muscles, Upper Limb|0 Comments

The abductor pollicis longus muscle emerges via the associated interosseous membrane and the proximal posterior sides of the radius as well as the ulna. Abductor pollicis longus arises in between the extensor digitorum along with extensor carpi radialis brevis muscles within the distal forearm, in order to create a tendon that enters the thumb and attaches [...]

8 08, 2018

Intrinsic Muscles of the Hand

By Dr. Joseph H Volker | 2018-08-30T11:15:22+00:00 August 8th, 2018|Anatomy, Muscles, Upper Limb|0 Comments

Intrinsic Muscles of the Hand are short muscles whose origin and insertion is enclosed within the area of the hand. These muscles make possible the skilled movements of the hand and also help the hand in adjusting for proper gripping. There are 20 intrinsic muscles in hand. These muscles comprises of small motor units which [...]

8 08, 2018

Flexor Digiti Minimi Brevis (Hand and Foot)

By Dr. Joseph H Volker | 2018-08-30T08:45:35+00:00 August 8th, 2018|Anatomy, Lower Limb, Muscles, Muscles, Upper Limb|0 Comments

Hand It emerges via the hook of the hamate bone as well as the surrounding flexor retinaculum and attaches along with the abductor digiti minimi muscle within the medial part of the base of the proximal phalanx of the little finger. The flexor digiti minimi brevis muscle is lateral towards the abductor digiti minimi. [...]

8 08, 2018

Deltoid Muscle

By Dr. Joseph H Volker | 2018-08-30T10:24:29+00:00 August 8th, 2018|Anatomy, Muscles, Upper Limb|0 Comments

The Deltoid is a three-in-one muscle. It’s thick, powerful, and curved triangular muscle covering the shoulder and creating its rounded contour. The deltoid is shaped like the inverted Greek letter Delta (D), for this reason its name deltoid. The deltoid muscle is split into 3 parts: Anterior unipennate part. Posterior unipennate part. Middle multipennate part. [...]

8 08, 2018

Triceps Brachii

By Dr. Joseph H Volker | 2018-08-30T09:20:33+00:00 August 8th, 2018|Anatomy, Muscles, Upper Limb|0 Comments

As the name suggests, it has three heads. Triceps brachii is a large muscle, which creates the majority of (nearly 70%) of the matter on the back of arm. Triceps Brachii Origin Lateral Head Starting simply under the head of the humerus and ending nearly midway down the bone, and the [...]