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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 Gracilis Detail musculus gracilis detail Thigh The gracilis is the most medial and superficial of the adductors, running as a long thin… Muscle Hamstrings musculi ischiocruris Thigh The hamstrings are a group of three muscles, biceps femoris, semitendinosus, and semimembranosus, running along the… Muscle Hamstrings Group Detail musculi ischiocrurei (overview) Thigh The hamstrings (biceps femoris long head, semimembranosus, and semitendinosus) are the primary knee flexors and important… Muscle Hyoglossus musculus hyoglossus Head & Skull The hyoglossus is a flat, quadrilateral muscle connecting the hyoid bone to the lateral tongue, depressing… Muscle Hyoglossus Detail musculus hyoglossus Neck The hyoglossus is a flat quadrilateral extrinsic tongue muscle passing vertically from the hyoid body and… Muscle Hypothenar Eminence Group musculi eminentiae hypothenaris Hand & Wrist The hypothenar eminence is formed by ADM, FDM, and ODM. All three receive deep ulnar nerve… Muscle Iliacus musculus iliacus Pelvis & Hip The iliacus is the flat triangular muscle that fills the iliac fossa, joining the psoas major… Muscle Iliacus (Full) musculus iliacus Pelvis & Hip The iliacus originates from the entire iliac fossa and joins the psoas major to form the… Muscle Iliacus Detail musculus iliacus detail Abdomen Iliacus fills the iliac fossa and is the broader, fan-shaped component of the iliopsoas. Unlike psoas… Muscle Iliococcygeus musculus iliococcygeus Pelvis & Hip The iliococcygeus is the posterior and thinner portion of the levator ani muscle group, arising from… Muscle Iliococcygeus Detail musculus iliococcygeus detail Abdomen The iliococcygeus is the posterior and more horizontal part of the levator ani, forming a shelf… Muscle Iliocostalis musculus iliocostalis Lower Back The iliocostalis is the most lateral column of the erector spinae group, spanning the full length… Muscle Iliocostalis (Full) musculus iliocostalis (pars erectoris spinae) Lower Back The iliocostalis is the most lateral column of the erector spinae, running from the iliac crest… Muscle Iliocostalis Cervicis musculus iliocostalis cervicis Neck The cervical portion of the iliocostalis is the most superior part of the lateral erector spinae… Muscle Iliocostalis Cervicis Detail musculus iliocostalis cervicis detail Lower Back Iliocostalis cervicis is the highest component of the iliocostalis column, bridging the upper ribs to the… Muscle Iliocostalis Lumborum musculus iliocostalis lumborum Lower Back The iliocostalis lumborum is the lumbar portion of the iliocostalis, forming the most lateral column of… Muscle Iliocostalis Lumborum Detail musculus iliocostalis lumborum detail Lower Back Iliocostalis lumborum is the lateral column of the lumbar erector spinae, providing the primary lateral lumbar… Muscle Iliocostalis Thoracis musculus iliocostalis thoracis Chest The thoracic iliocostalis runs rib-to-rib in the thoracic region, extending and stabilising the thoracic spine while… Muscle Iliocostalis Thoracis Detail musculus iliocostalis thoracis detail Chest Iliocostalis thoracis is the thoracic segment of the lateral erector spinae column, bridging the lower six… Muscle Iliopsoas musculus iliopsoas Pelvis & Hip The iliopsoas is technically two muscles, the psoas major descending from the lumbar spine and the… Muscle Iliopsoas Detail musculus iliopsoas detail Pelvis & Hip The iliopsoas is the most powerful hip flexor and primary postural hip muscle. Its conjoined tendon… Muscle Incisivii Labii Inferioris musculus incisivii labii inferioris Head & Skull The incisivii labii inferioris (lower) is the mandibular counterpart to the superior version, connecting the lower… Muscle Incisivii Labii Muscles musculi incisivii labii superioris et inferioris Head & Skull The incisivii labii are small paired accessory muscles of facial expression arising from the alveolar processes… Muscle Incisivii Labii Superioris musculus incisivii labii superioris Head & Skull The incisivii labii superioris (upper) is one of the smaller perioral muscles contributing to lip shaping…

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