Human Anatomy

The ribs are a set of 12 pairs bones which form the protective ‘cage’ of the thorax. The first seven sets of ribs, known as "true ribs" also known as vertebrosternal ribs, are directly articulate with the vertebral column posteriorly and...

Femoral Artery is the large artery in the thigh of the lower limb and the main arterial supply to the leg. The femoral artery is the extension of the external iliac artery and It enters the thigh from behind the...

The suboccipital triangle is placed at the back of the junction between head and neck, bounded by the three muscles of the suboccipital muscles: Obliquus capitis superior - above and laterallyRectus capitis posterior major - above and mediallyObliquus capitis inferior...

Middle Scalene:The middle scalene is the largest and longest in the Scalene group of the lateral neck muscles. It has several long, arising from the cervical spine, which converge into one large belly that inserts into the first rib. Origin:...

Posterior Scalene: The posterior scalene is the smallest and deepest of the scalene muscles. It is deeply placed, lying behind Sternocleidomastoid. Unlike the anterior and middle scalene muscles, it inserts into the second rib. Origin: Originates from the posterior tubercles...

Anterior Scalene:The anterior scalene muscle is one of the lateral muscles of the neck, deep to the prominent sternocleidomastoid muscle. Origin: Anterior Scalene originates from the anterior tubercles of the transverse processes of C3-C6. Insertion: Anterior Scalene inserts into the...

Thyrohyoid:The thyrohyoid is a short band of muscle, thought to be a continuation of the sternothyroid muscle, which depresses the hyoid and elevates the larynx. Origin: oblique line of the thyroid cartilage Insertion: lower border of the hyoid bone Actions:...

Sternothyroid:The sternothyroid is a muscle in the neck.The sternothyroid muscle is wider and deeper than the sternohyoid. It is located within the deep plane. Origin: Posterior surface of the manubrium below the origin of the sternohyoid m. Insertion: Arises from...

Sternohyoid: The sternohyoid muscle is located within the superficial plane. Origin: Posterior surface of manubrium and an adjoining part of the clavicle, and posterior sternoclavicular ligament. Insertion: lower border of the hyoid bone, medial to the omohyoid m. insertion. Actions: Depresses...

Omohyoid: The omohyoid is comprised of two muscle bellies, which are connected by a muscular tendon. Origin: Inferior belly: upper border of the scapula medial to the scapular notch. Superior belly: intermediate tendon. It runs superomedially underneath the sternocleidomastoid muscle....