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Body Atlas, Muscle Reference

Muscles

Complete muscle reference, origins, insertions, nerve supply, actions, clinical notes, and common injuries.

676 muscles

676 muscles

Muscle Deep Transverse Perineal musculus transversus perinei profundus Pelvis & Hip The deep transverse perineal muscle forms the muscular floor of the deep perineal pouch (urogenital diaphragm).… Muscle Deep Transverse Perineal Detail musculus transversus perinei profundus detail Pelvis & Hip The deep transverse perineal muscle forms the muscular base of the urogenital diaphragm in the deep… Muscle Deltoid musculus deltoideus Shoulder The deltoid is the large, triangular muscle that gives the shoulder its rounded contour, wrapping from… Muscle Deltoid (Anterior Head) musculus deltoideus pars clavicularis Shoulder The anterior deltoid is the clavicular head of the deltoid muscle, providing the primary force for… Muscle Deltoid (Posterior Head) musculus deltoideus pars spinalis Shoulder The posterior deltoid is the spinal head of the deltoid, performing the opposite movements of the… Muscle Deltoid Anterior Head Detail pars clavicularis m. deltoidei detail Shoulder The anterior head of the deltoid is the flexion and internal rotation component. It works antagonistically… Muscle Deltoid Deep Fascia Layer fascia profunda m. deltoidei Shoulder The deep deltoid fascia forms intramuscular septa giving the deltoid its multipennate architecture and allowing semi-independent… Muscle Deltoid Middle Head musculus deltoideus (pars acromialis) Shoulder The middle (acromial) head of the deltoid is the largest and most powerful of the three… Muscle Deltoid Posterior Head Detail pars spinalis m. deltoidei detail Shoulder The posterior deltoid head is the extension and external rotation component. It works with the infraspinatus… Muscle Depressor Alae Nasi musculus depressor alae nasi Head & Skull The depressor alae nasi (depressor septi nasi variant) pulls the nasal tip inferiorly during smile animation,… Muscle Depressor Anguli Oris musculus depressor anguli oris Head & Skull The depressor anguli oris is a triangular muscle pulling the corner of the mouth downward, the… Muscle Depressor Labii Inferioris musculus depressor labii inferioris Head & Skull The depressor labii inferioris depresses and everts the lower lip, exposing the lower teeth and inner… Muscle Depressor Labii Inferioris Detail musculus depressor labii inferioris detail Head & Skull The depressor labii inferioris is innervated by the marginal mandibular branch of the facial nerve, making… Muscle Depressor Septi Nasi musculus depressor septi nasi Head & Skull The depressor septi nasi pulls the nasal base and septum downward during animation, producing the tip… Muscle Depressor Supercilii musculus depressor supercilii Head & Skull The depressor supercilii is a small facial muscle considered by some anatomists to be a separate… Muscle Detrusor Muscle musculus detrusor vesicae Abdomen The detrusor is the smooth muscle of the bladder wall responsible for both bladder storage (by… Muscle Detrusor Muscle Detail musculus detrusor vesicae detail Pelvis & Hip The detrusor is the primary smooth muscle of the bladder wall, responsible for voiding contraction. It… Muscle Detrusor Vesicae musculus detrusor vesicae Pelvis & Hip The detrusor vesicae is the smooth muscle coat of the urinary bladder, responsible for bladder storage… Muscle Diaphragm diaphragma Chest The diaphragm is the primary muscle of breathing, a domed musculotendinous partition separating the thorax from… Muscle Digastric musculus digastricus Neck The digastric is a suprahyoid muscle with two bellies and an intermediate tendon that has dual… Muscle Digastric (Full) musculus digastricus Head & Skull The digastric is a two-bellied suprahyoid muscle with different embryological origins and nerve supplies for each… Muscle Digastric Anterior Belly venter anterior m. digastrici Head & Skull The anterior belly of the digastric is innervated by the trigeminal nerve (unlike the posterior belly… Muscle Digastric Posterior Belly venter posterior m. digastrici Head & Skull The posterior belly of the digastric is innervated by the facial nerve, reflecting its second branchial… Muscle Dilator Naris pars alaris m. nasalis (dilator naris) Head & Skull Dilator naris is the alar part of nasalis, flaring the nostril during inspiration to reduce nasal…

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