Strap muscles examples. Examples of fusiform muscles include the sartorius, biceps brachii, and sternohyoid muscles. They are normally long muscles which cause large movements, and are not very strong but have good endurance. 4 infrahyoid muscles are collectively called the strap muscles: sternohyoid sternothyroid thyrohyoid omohyoid All 4 are innervated by the ansa cervicalis. Convergent muscles are also sometimes known as triangular muscles. strap muscles Surgical anatomy A popular term for the infrahyoid group of intrinsic laryngeal muscles; SMs are small, flat muscles below the hyoid bone that connect with hyoid bone and thyroid cartilage; SMs are antagonistic to the elastic suspensory ligaments and laryngeal elevators. The infrahyoid muscles, or strap muscles, are a group of four pairs of muscles in the anterior (frontal) part of the neck. They can be divided into those in the superficial plane (sternohyoid and omohyoid), and those in the deep plane (sternothyroid and thyrohyoid). Learn how to identify fusiform muscles with detailed explanations and examples. The Deep Layer of Infrahyoid Muscles The deep layer of infrahyoid muscles includes two muscles: The thyrohyoid muscle and the sternothyroid muscle. Checking the security of your connection, please wait Strap muscles are shaped like a strap or belt and have fibres that run longitudinally to the contraction direction. Infrahyoid muscles are also known as “strap muscles” which connect the hyoid, sternum, clavicle and scapula. They are primarily located in the neck, where they act as thin, elongated stabilizers and movers for delicate structures. Each muscle has a distinct origin, insertion, and function. For example, during speech, the larynx must move up and down, and the strap muscles help to elevate and depress it, contributing to the vocal sounds we produce. Parallel Muscles Parallel muscles have fibres that, as the name suggests, run parallel to each other and are sometimes called strap muscles. They are composed of four paired m Jun 24, 2025 · The strap muscles are a group of four muscles: sternohyoid, sternothyroid, omohyoid, and thyrohyoid. Discover the unique characteristics and locations of these muscles in the human body. Nov 26, 2025 · Strap muscles are a distinct group of skeletal muscles characterized by their long, flat, and ribbon-like appearance. An example is Pectoralis Major. A fusiform muscle, also known as a strap muscle, refers to a type of muscle that has a parallel-fiber arrangement. May 7, 2025 · The strap muscles, also known as the infrahyoid muscles, are composed of four paired muscles: the sternohyoid, the sternothyroid, the omohyoid, and the thyrohyoid. A markedly hypoechoic lesion demonstrates even lower echogenicity than normal muscle tissue. By this definition, the sternocleidomastoid muscle does not fit the criteria of a strict strap muscle, as it is not uniformly thin and flat along its entire length, but instead has a rounder, more tapered shape. Note that, in the provided image, the lesion is more hypoechoic compared to the strap muscles (indicated by arrows). • The Thyrohyoid Muscle- The thyrohyoid muscle is a small muscle present above the thyroid gland. It arises from the thyroid cartilage and attaches to the hyoid bone. An example of a strap muscle is the sartorius, which is the longest muscle in the human body. Radiopaedia’s mission is to create the best radiology reference the world has ever seen and to make it available for free, for ever, for all. Nov 6, 2025 · There are four infrahyoid muscles, located underneath the hyoid bone in the neck. Jul 22, 2025 · Beyond the neck, the term “strap muscle” also applies to other muscles due to their characteristic shape. Decreased echogenicity relative to adjacent neck musculature (strap muscles). . They are located in the anterior part of the neck, below the hyoid bone. Fusiform muscles are wider and cylindrically shaped in the centre and taper off at the ends, like a spindle. Cf Laryngeal complex. [1] The four infrahyoid muscles are the sternohyoid, sternothyroid, thyrohyoid and omohyoid muscles. This means that the muscle fibers are arranged parallel to the longitudinal axis of the muscle. The sartorius muscle, located in the thigh, is a prime example and is notably the longest muscle in the human body. They are located below the hyoid bone on the anterolateral surface of the thyroid gland and are involved in movements of the hyoid bone and thyroid cartilage during vocalization, swallowing and mastication. Very hypoechoic nodules have low sensitivity but very high specificity for malignancy. Checking the security of your connection, please wait Examples of strap muscles include the rectus abdominis in the abdomen and the sartorius in the thigh. v8okxi, 2awy, yfpxkq, ns6z, 8lhy2, gr6i, r1xrr, n841v, pt1v, szjzr,