StateMaster - Encyclopedia: Infrahyoid

The term infrahyoid refers to the region below (inferior) to the hyoid bone in the neck. Image File history File links Gray386. ... Image File history File links Gray386. ... The hyoid bone (Os Hyoideum; Lingual Bone) is a bone in the human neck, not articulated to any other bone; it is supported by the muscles of the neck and in turn supports the root of the tongue. ... Muscles of the neck. ... The Sternohyoid muscle is a muscle of the human body. ... The omohyoid muscle is a muscle at the front of the neck that consists of two bellies separated by an intermediate tendon. ... The Thyrohyoid muscle is a muscle of the human body. ... The cartilages of the larynx. ... The Sternothyroid muscle is a muscle of the human body. ... The hyoid bone (Os Hyoideum; Lingual Bone) is a bone in the human neck, not articulated to any other bone; it is supported by the muscles of the neck and in turn supports the root of the tongue. ... A human neck. ...

The infrahyoid muscles are a group of four pairs of muscles in the anterior part of the neck, namely the sternothyroid, sternohyoid, thyrohyoid and omohyoid muscles. Collectively, they are referred to as the strap muscles, because the muscles are long and flat much like a strap. All of the infrahyoid muscles are innervated by the ansa cervicalis from the cervical plexus(C1-3) EXCEPT for the thyrohyoid muscle, which is innervated by only C1. The actions of these muscles are to fix or depress the hyoid bone. It has been suggested that this article or section be merged into Muscular system. ... A human neck. ... The Sternothyroid muscle is a muscle of the human body. ... The Sternohyoid muscle is a muscle of the human body. ... The Thyrohyoid muscle is a muscle of the human body. ... The omohyoid muscle is a muscle at the front of the neck that consists of two bellies separated by an intermediate tendon. ... A strap is a strip, usually of fabric or leather. ... The ansa cervicalis (or ansa hypoglossi in older literature) is a loop of nerves that are part of the cervical plexus. ...

The stylopharyngeus muscle is considered by many to be one of the strap muscles but it is innervated by CN9 rather than the ansa cervicalis. The Stylopharyngeus muscle is a muscle of the human body. ...

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Muscles of head and neck: the neck

CERVICAL: platysma - sternocleidomastoid It has been suggested that this article or section be merged into Muscular system. ... Head and neck anatomy is a specialized study of the human body quite frequently studied in depth by surgeons, dentist, and dental technicians. ... A human neck. ... The platysma is a superficial muscle that stretches from the clavicle to the mandible overlapping the sternocleidomastoid. ... In human anatomy, the sternocleidomastoid (pronounced ) muscles are muscles in the neck that act to flex and rotate the head. ...

SUPRAHYOID: digastric - stylohyoid - mylohyoid - geniohyoid The term suprahyoid refers to the region above (superior) to the hyoid bone in the neck. ... The digastric muscle (named digastric as it has two bellies) is a small muscle located under the jaw. ... The Stylohyoid muscle is a slender muscle, lying in front of, and above the posterior belly of the digastric muscle. ... The Mylohyoid muscle, flat and triangular, is situated immediately above the anterior belly of the digastric muscle, and forms, with its fellow of the opposite side, a muscular floor for the cavity of the mouth. ... The Geniohyoideus (Geniohyoid muscle) is a narrow muscle, situated above the medial border of the Mylohyoideus. ...

INFRAHYOID/STRAP: sternohyoid - sternothyroid - thyrohyoid - omohyoid The Sternohyoid muscle is a muscle of the human body. ... The Sternothyroid muscle is a muscle of the human body. ... The Thyrohyoid muscle is a muscle of the human body. ... The omohyoid muscle is a muscle at the front of the neck that consists of two bellies separated by an intermediate tendon. ...

VERTEBRAL — ANTERIOR: longus colli - longus capitis - rectus capitis anterior - rectus capitis lateralis The Longus colli muscle is a muscle of the human body. ... The Longus capitis muscle is a muscle of the human body. ... Wikipedia does not have an article with this exact name. ... The Rectus capitis lateralis muscle is a muscle of the human body. ...

LATERAL: scalene (anterior - medius - posterior) The scalene muscles are a group of three pairs of muscles in the lateral neck, namely the anterior scalene, middle scalene, and posterior scalene. ... The Scalenus anterior (Scalenus anticus) lies deeply at the side of the neck, behind the Sternocleidomastoideus. ... The Scalenus medius, the largest and longest of the three Scaleni, arises from the posterior tubercles of the transverse processes of the lower six cervical vertebrÃ¦, and descending along the side of the vertebral column, is inserted by a broad attachment into the upper surface of the first rib, between... The Scalenus posterior (Scalenus posticus), the smallest and most deeply seated of the three Scaleni, arises, by two or three separate tendons, from the posterior tubercles of the transverse processes of the lower two or three cervical vertebrÃ¦, and is inserted by a thin tendon into the outer surface of...