Levator labii superioris alaeque nasi muscle Anatomy The levator labii superioris alaeque nasi muscle, often referred to as the levator labii superioris muscle, is a facial muscle located in the upper lip region. It plays a crucial role in facial expression and is part of the complex network of muscles responsible for controlling movements around…
Inferior oblique muscle is a thin, narrow muscle placed near the anterior margin of the floor of the orbit. It is one of six extraocular muscles that help to do eye movements. Extraocular muscles are important for eye movement. The four rectus muscles, superior oblique, and inferior oblique muscles work together to move the eyes…
Superior Oblique Muscle Anatomy Origin Insertion Nerve supply Blood Supply Actions Relations: Assessment Clinical evaluation of all the extraocular muscles is often performed by having the patient track the clinician’s finger in the air in the shape of an “H.” The superior oblique muscle can be isolatedly tested by having the patient glance inward and…
Inferior rectus muscle Anatomy Origin Insertion Nerve supply Blood supply: Venous Drainage Venous drainage discharges into the superior and inferior orbital veins, functioning similarly to the artery system. The superior and inferior rectus muscles’ lateral and medial sides are home to the four vortex veins that are typically present. The orbital venous system receives the…
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…
