Items tagged “illustrations”

42 results found
Article

Brachialis muscle

The brachialis muscle (brachialis) is one of the three muscles of the anterior compartment of the arm. It is only involved in flexion at the elbow and therefore the strongest flexor at the elbow, compared with the biceps brachii which is also involved in supination because of its insertion on th...
Article

Triceps brachii muscle

The triceps brachii muscle, which often referred to simply as the triceps is a three-headed muscle in the posterior compartment of the arm. Summary origin long head: infraglenoid tubercle of the scapula medial head: posterior humerus, inferior to the radial groove, medial intermuscular septu...
Article

Anconeus muscle

The anconeus muscle is a small muscle in the posterior compartment of the arm at the lateral aspect of the elbow. It has little functional significance but should be differentiated from the variably present anconeus epitrochlearis at the medial aspect of the elbow. Summary origin: lateral epic...
Article

Articularis cubiti muscle

The articularis cubiti muscle lies in the posterior compartment of the arm: origin: posterior surface of the distal humerus insertion: posterior surface of the elbow joint capsule innervation: radial nerve action: tenses the posterior elbow joint capsule during elbow extension
Article

Pronator teres

Pronator teres is a two-headed flexor and pronator of the forearm, found superficially in the anterior compartment of the forearm. Summary origin humeral head: medial epicondyle of the humerus ulnar head: coronoid process of the ulna insertion: lateral surface of the middle-third radius ar...
Article

Flexor carpi radialis

Flexor carpi radialis (FCR) is a muscle found in the first layer of the anterior compartment of the forearm. It does not pass through the carpal tunnel, but rather by itself in a small separate tunnel between the superficial and deep layers of the flexor retinaculum along the scaphoid and trapez...
Article

Palmaris longus

Palmaris longus (PL) is a superficial, weak flexor of the wrist located in the anterior compartment of the forearm. It is one of the extrinsic muscles of the hand. Summary origin: medial epicondyle of the humerus insertion: palmar aponeurosis arterial supply: anterior ulnar recurrent artery ...
Article

Latissimus dorsi muscle

Latissimus dorsi muscle (colloquially often shortened to the lats) is one of the muscles that attaches the upper limb to the vertebral column. Summary origin ​spinous processes of T7-T12 vertebrae and thoracolumbar fascia posterior third of the iliac crest 9th-12th ribs inferior angle of t...
Article

Levator scapulae muscle

Levator scapulae muscle is a muscle of the upper limb that connects the pectoral girdle to the cervical spine. Summary origin: C1-C4 transverse processes insertion: superior angle of the scapula innervation: direct branches from the C3-4 spinal nerves, and the dorsal scapular nerve (C5) art...
Article

Pectoralis minor muscle

The pectoralis minor muscle is a muscle of the pectoral region lying deep to and completely covered by the pectoralis major muscle.  It is an important anatomical landmark in two senses: it arbitrarily divides the axillary artery into 3 parts it arbitrarily divides the axillary lymph nodes in...
Article

Serratus anterior muscle

Serratus anterior muscle arises from the anterolateral chest wall as eight interdigitations of muscle that run posteriorly around the chest wall, under the scapula to insert onto the medial scapula. It is considered one of the four muscles of the pectoral region, Summary origin: anterolateral ...
Article

Subclavius muscle

The subclavius muscle is a small triangular muscle of the pectoral region which depresses the shoulder. Summary origin: 1st costochondral joint insertion: subclavian groove on the inferior aspect of the clavicle innervation: nerve to subclavius arterial supply: clavicular branch of the thor...
Article

Flexor carpi ulnaris

Flexor carpi ulnaris (FCU) is a muscle of the first layer of the anterior compartment of the forearm. It is one of the extrinsic muscles of the hand. Summary origin humeral head: medial epicondyle of the humerus ulnar head: medial border of olecranon and posterior border of ulna insertion: ...
Article

Posterior compartment of the forearm

The forearm is divided into the posterior compartment and the anterior compartment by the deep fascia, lateral intermuscular septum and the interosseous membrane between the ulna and radius.  Muscles The posterior compartment of the forearm contains 11 muscles, divided into deep and superficia...
Article

Flexor retinaculum at the ankle

Flexor retinaculum at the ankle is formed by reinforcement of the deep fascia of the leg by transverse collagen bundles and functions to prevent 'bowstringing' of tendons as they pass the tibiotalar joint. It forms the roof of the tarsal tunnel 1-2. Attachments medial malleolus of the tibia m...
Article

McBurney point

McBurney point is defined as a point that lies one-third of the distance laterally on a line drawn from the umbilicus to the right anterior superior iliac spine. Classically, it corresponds to the location of the base of the appendix 1. Clinically, McBurney point is relevant for the elicitation...
Article

Femoral triangle

The femoral triangle is an anatomical space in the anterior upper thigh that contains several palpable structures. Gross anatomy Boundaries The major boundaries can be recalled with the mnemonic SAIL 1,2: lateral border: medial border of sartorius medial border: medial border of adductor lo...
Case

Iliotibial band (ITB) anatomy: diagrams

 Diagnosis not applicable
Dr Matt Skalski
Published 21 May 2015
22% complete
Diagram
Case

Hill-Sachs lesion - illustration

 Diagnosis not applicable
Dr Matt Skalski
Published 23 Jan 2019
41% complete
Diagram
Case

Menisci illustrations

 Diagnosis not applicable
Dr Matt Skalski
Published 11 May 2019
20% complete
Diagram

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