The elbow joint is the joint where the arm meets the body. It is made up of three bones: the humerus, or upper arm bone, and the radius and ulna, the bones of the lower arm. The main purpose of the elbow joint is to allow the arm to move in a wide range of…
Introduction: Origin: Insertion: Nerve supply: Actions: Blood Supply: The blood flow to the extraocular muscles varies. Like all other extraocular muscles, the lateral rectus gets one or two branches of the inferior muscular artery as well as the lacrimal artery. The ocular artery, which is a branch of the internal carotid artery, gives rise to…
Superior Rectus Muscle Anatomy The superior rectus (SR) muscle is one of six extraocular muscles that control eye movement. It is also known as the elevator oculi muscle. This muscle is innervated by the superior division of the oculomotor nerve (CN III). The SR originates from the common tendinous ring (annulus of Zinn) and inserts…
Vertical Muscle Anatomy Gross anatomy: Origin Insertion Nerve supply Blood supply Actions Synonym: Vertical muscle of tongueRelated terms: Vertical muscle of tongue
Inferior Longitudinal Muscle Anatomy The Inferior Longitudinal Muscle of the tongue is one of the intrinsic muscles that contribute to the complex movements and functions of the tongue. As part of the intrinsic musculature, it is situated within the tongue itself and plays a crucial role in shaping and controlling the movements of this versatile…
Transverse Muscle of the Tongue Anatomy Transverse muscle is an intrinsic muscle of the tongue also called Transverse Lingual Muscle. The transverse Muscle of the Tongue has fibers that originate from the median fibrous septum and cross lateralward to be inserted into the submucous fibrous tissue at the sides of the tongue. The muscle fibers…
Superior longitudinal muscle of tongue Anatomy The superior longitudinal muscle is one of the intrinsic muscles of the tongue. It is responsible for various movements and changes in the shape of the tongue. The tongue is primarily composed of skeletal muscle, and the intrinsic muscles are responsible for its fine motor movements. origin : Insertion:…
Styloglossus Muscle Anatomy The styloglossus muscle is one of the intrinsic muscles of the tongue, playing a role in the movement and positioning of the tongue. It is part of a group of muscles responsible for the fine motor control of the tongue’s movements. The Styloglossus muscle is the shortest and smallest of the three…
Chondroglossus muscle: a muscle sometimes described as a part of the hyoglossus but is separated from it by fibers of the genioglossus, which pass to the side of the pharynx. Origin: lesser cornu and body of the hyoid bone. Insertion: intrinsic muscular fibers of the tongue. Nerve supply: hypoglossal nerve. Action: depresses the tongue (some…
The genioglossus muscle is a muscle of the tongue that plays a crucial role in various functions such as speech, swallowing, and breathing. The genioglossus is a bilateral tongue muscle that is in the part of the extrinsic muscles of the tongue. The palatoglossus, styloglossus, and hyoglossus (chondroglossus) are the additional extrinsic muscles of the…
