What is Palmaris longus? The Palmaris longus is a long muscle of the foremost lower arm. It can be absent in 10% of people, but it runs from the distal humerus to the hand’s root. Along with the pronator teres, flexor carpi ulnaris, flexor carpi radialis, and flexor digitorum superficialis muscles, the Palmaris longus has…
What is the Pronator Quadratus muscle? The quadrangular, short, flat, and thin muscle known as the pronator quadratus is located in the forearm’s anterior compartment. Along with the flexor digitorum profundus and the flexor pollicis longus, it is a member of the deep group of forearm flexors. The forearm flexors’ superficial group covers these three…
What is Flexor carpi ulnaris? The fusiform muscle known as the flexor carpi ulnaris can be found in the forearm’s anterior compartment. Along with the pronator teres, palmaris longus, flexor digitorum superficialis, and flexor carpi radialis, it is a member of the forearm’s superficial flexors. The superficial flexor located most medially is the flexor carpi…
What is Anconeus? The anconeus is a tiny, triangular arm muscle. It runs from the distal humerus to the proximal ulna and is found on the back of the elbow. The anconeus muscle, along with the brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, and extensor carpi ulnaris muscles,…
The pronator teres muscle is a forearm muscle that originates from two separate heads. The first head arises from the medial epicondyle of the humerus, while the second head originates from the coronoid process of the ulna. The two heads join together to form a single muscle belly, which inserts onto the lateral aspect of…
Introduction Obliquus capitis superior, or superior oblique muscle, is a small paired muscle found deep in the upper cervical region, at the base of the occipital bone. It is one of four muscles that incorporate the suboccipital muscles group along with rectus capitis posterior major, rectus capitis posterior minor and obliquus capitis inferior muscles. Obliquus…
What is the Brachialis muscle? The Teichmann muscle is also known as the brachialis (brachialis antics). At the elbow joint, the brachialis muscle is a primary flexor of the elbow. It has a fusiform structure and is situated proximal to the biceps brachii in the anterior (flexor) compartment of the arm. The brachialis is a…
What is Coracobrachialis? The coracobrachialis is a long and thin muscle in the arm’s anterior compartment. It runs from the coracoid process of the scapula to the shaft of the humerus, as the term implies. The coracobrachialis muscle’s main function is to generate arm flexion and adduction at the shoulder joint. The musculocutaneous nerve innervates…
Introduction Rectus capitis anterior muscle is one of the deep neck muscles whose role is to flex the head on the neck at the atlantooccipital joint. The rectus capitis anterior muscle is a flat, small muscle that is nestled behind the upper portion of the longus capitis muscle. This short strap muscles belong to the…
Introduction Rectus capitis lateralis muscle is a small, paired muscle that is seen within the neck, deep to the prevertebral portion of the deep cervical fascia. It is a portion of the prevertebral muscle group along with also splenius capitis, levator scapulae, and middle and posterior scalene muscles. The rectus capitis lateralis consists of paired…
