Items tagged “upper limb”

18 results found
Article

Brachial plexus root subdivisions (mnemonic)

Mnemonics for brachial plexus root subdivisions include: Rad Techs Drink Cold Beer Robbie T Drinks Cold Beer Rugby Teams Drink Cold Beers Reach To Drink Cold Beer Read That Damn Cadaver Book Really Tired, Don't Care Now (nerve instead of branch) Red Toucans Don't Come Back  Mnemonic Whe...
Article

Rotator cuff

The rotator cuff is a group of four muscles and their tendons, important in stabilizing the glenohumeral joint: supraspinatus: abduction infraspinatus: external rotation teres minor: external rotation subscapularis: internal rotation Other structures that stabilize the glenohumeral joint in...
Article

Quadrangular space

The quadrangular space (or quadrilateral space) is one of three spaces located in the posterior compartment of the arm, along with the lateral triangular space and medial triangular space that allow communication between the axilla and posterior compartment of the arm. Gross anatomy Boundaries...
Article

Ossification centers of the wrist

Ossification of the wrist can be divided into two components: carpal bone ossification centers distal radial and ulna ossification centers Ossification of the carpal bones Ossification of the carpal bones occurs in a predictable sequence, starting with the capitate and ending with the pisifo...
Article

Anconeus epitrochlearis muscle

The anconeus epitrochlearis muscle is an accessory muscle of the upper limb at the medial aspect of the elbow. It is also known as the accessory anconeus muscle or epitrochleoanconeus muscle and should not be confused with the anconeus muscle which is present at the lateral aspect of the elbow. ...
Article

Upper extremity dislocations

Upper extremity dislocations are relatively common on account of the great range of motion the upper limb is capable of (a general principle is that the greater the range of motion of a joint, the more prone it is to dislocation). In many instances dislocations are associated with fractures eith...
Article

Anterior humeral line

The anterior humeral line is key to demonstrating normal elbow alignment and should be used whenever reading a pediatric elbow radiograph to exclude a subtle supracondylar fracture. Measurement A line drawn down the anterior surface of the humerus should intersect the middle third of the capit...
Article

Rotator cuff (mnemonic)

Mnemonics to recall the muscles of the rotator cuff are: SITS TISS Mnemonic S: supraspinatus I: infraspinatus T: teres minor S: subscapularis With 'SITS', recalling this order also helps remember the insertions of these muscles, with the order being superior, middle, and inferior facets ...
Article

Brachial artery

The brachial artery is the main supply of arterial blood to the arm, forearm, and hand.  Summary origin: continuation of axillary artery distal to teres major location: medial upper arm supply: muscles of the arm, forearm, and hand main branches: profunda brachii terminal branches: radial ...
Article

Lateral triangular space

The lateral triangular space, also called the triangular interval or lower triangular space 1 or triceps hiatus, is a space connecting the axilla to the posterior compartment of the arm. It should not be confused with the similarly named medial (upper) triangular space. Gross anatomy It is a d...
Article

Abductor pollicis longus muscle

The abductor pollicis longus (APL) muscle is found in the deep layer of the posterior compartment of the forearm. As it descends, it becomes superficial and passes under the extensor retinaculum and through the 1st extensor compartment of the wrist before attaching distally. It is one of the ext...
Article

Scapula

The scapula (plural: scapulae) is a roughly triangular shaped bone of the pectoral girdle with several articulations connecting to the humerus and clavicle.  Gross anatomy Osteology The main part of the scapula, the body, consists of a somewhat triangular-shaped flat blade, with an inferiorly...
Article

Carpal tunnel

The carpal tunnel is a fibro-osseous canal in the anterior (volar) wrist that acts as a passageway for structures between the anterior forearm and the hand. Gross anatomy Boundaries superficial border (roof): flexor retinaculum deep border (floor): carpal groove (formed by palmar aspect of c...
Article

Abductor pollicis brevis muscle

The abductor pollicis brevis muscle is a thin subcutaneous muscle located laterally in the thenar eminence of the hand, and is one of the intrinsic muscles of the hand. Summary origin: mainly from the flexor retinaculum few fibers originate from the tubercles of scaphoid and trapezium and ten...
Article

Opponens pollicis muscle

The opponens pollicis muscle is one of the muscles of the thenar eminence, deep to abductor pollicis brevis, and is one of the intrinsic muscles of the hand. The three muscles that constitute the thenar eminence muscle group are abductor pollicis brevis, flexor pollicis brevis and opponens polli...
Article

Guyon's canal

Guyon’s canal (also known as ulnar tunnel or canal) is a fibro-osseous tunnel at the anterior aspect of the wrist. It is superficial and slightly proximal to the flexor retinaculum. It is approximately 4 cm in length, spanning from the proximal aspect of the pisiform to the hook of hamate. Gros...
Article

Posterior humeral circumflex artery

The posterior humeral circumflex artery is a vessel arising from the axillary artery at the proximal part of the arm. Summary origin: branch of the axillary artery at the proximal part of the arm 1 location: proximal arm supply: glenohumeral joint, teres major and minor, and deltoid 1 main ...
Case

Palmar nerves (Gray's illustrations)

  Diagnosis not applicable
Craig Hacking
Published 27 Jan 2022
35% complete
Diagram

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