This human anatomy ClipArt gallery offers 242 illustrations the human muscular system. This includes both human skeletal muscle and human smooth and cardiac muscle. Human skeletal muscles (also known as striped, striated, or voluntary muscle) are those muscles that attach to bones and are involved in voluntary movements. Smooth muscles (also known as non-striated or involuntary muscle) are found lining the surface of internal organs such as the stomach, and cardiac muscles are those muscles specific to the heart. Both smooth and cardiac muscles are involuntarily controlled by the autonomic nervous system.

Fragment of a fiber of cross-striped muscular tissue showing fibrils separated at one end by teasing.

Cross-Striped Muscular Tissue

Fragment of a fiber of cross-striped muscular tissue showing fibrils separated at one end by teasing.

Striped muscle tissue, also known as voluntary muscle. Labels: 1, Longitudinal cleavage; 2, 3, 4, transverse cleavage.

Striped Muscular Tissue

Striped muscle tissue, also known as voluntary muscle. Labels: 1, Longitudinal cleavage; 2, 3, 4, transverse…

Shown is the mylohyoid muscle. The mylohyoid muscle is a flat, triangular muscle situated beneath the interior belly of the Digastric, forming the muscular floor for the cavity of the mouth.

Mylohyoid Muscle

Shown is the mylohyoid muscle. The mylohyoid muscle is a flat, triangular muscle situated beneath the…

Muscles of the orbital region around the eye.

Muscles of the Nasal Region

Muscles of the orbital region around the eye.

"One of the Deep Layers of Muscles of the Neck and the Back." — Blaisedell, 1904

Muscles of the neck and back

"One of the Deep Layers of Muscles of the Neck and the Back." — Blaisedell, 1904

Muscles of the head, face, and neck.

Neck Muscles

Muscles of the head, face, and neck.

The triangles of the neck (muscles).

Neck Muscles

The triangles of the neck (muscles).

Muscles of the neck.

Neck Muscles

Muscles of the neck.

Anterior view of the muscles of the neck.

Anterior View of the Neck Muscles

Anterior view of the muscles of the neck.

Muscles of the neck.

Muscles of the Neck Region

Muscles of the neck.

"Principal Muscles on the Left Side of the Neck." — Blaisedell, 1904

Muscles of the neck

"Principal Muscles on the Left Side of the Neck." — Blaisedell, 1904

The prevertebral muscles of the neck are comprised of three series of muscles: 1 vertebro costal (scaleni, anticus, medius, and posticus); 2 vertebro cranial (recti capitis antici, major and minor, and lateralis);3 vertebral (longus colli).

Prevertebral Muscles of the Neck

The prevertebral muscles of the neck are comprised of three series of muscles: 1 vertebro costal (scaleni,…

The triangles of the neck.

Triangles of the Neck

The triangles of the neck.

Transition of the tendon of the right internal oblique into the sheath of the rectus.

Transition of the Oblique Muscle into the Rectus

Transition of the tendon of the right internal oblique into the sheath of the rectus.

The external oblique muscles

External Oblique Muscles

The external oblique muscles

The internal oblique muscles

Internal Oblique Muscles

The internal oblique muscles

Muscles of the orbital region around the eye.

Muscles of the Orbital Region

Muscles of the orbital region around the eye.

Muscles of the soft palate, the pharynx being laid open from behind and mucous membrane removed.

Muscles of the Soft Palate

Muscles of the soft palate, the pharynx being laid open from behind and mucous membrane removed.

Muscles of the pelvic outlet in a male, including the genital and anal regions.

Muscles of the Pelvic Outlet

Muscles of the pelvic outlet in a male, including the genital and anal regions.

Muscles of the true pelvis on the right side, viewed from without and below. The quadratus having been removed, the gemelli are also not shown.

Muscles of Pelvis

Muscles of the true pelvis on the right side, viewed from without and below. The quadratus having been…

External view of the muscles of the pharynx.

Muscles of the Pharynx

External view of the muscles of the pharynx.

The Pterygoid muscles, the zygomatic arch, and a portion of the ramus of the mandible have been removed.

Pterygoid Muscles

The Pterygoid muscles, the zygomatic arch, and a portion of the ramus of the mandible have been removed.

Muscles of the pterygoid region of the head.

Muscles of the Pterygoid Region

Muscles of the pterygoid region of the head.

The muscles of the rear thigh. 1, fifth lumbar vertebra; 2, ilio-lumbar ligament; 3, crest of ilium; 4, anterior superior spinous process; 5, origin of fascia femoris; 6, gluteus medino; 7, its lower and anterior portion; 8, pyriformis; 9, gemini; 10, trochanter major; 11, insertion gluteus medius; 12, quadratus femoris; 13, adductor magnus; 14, insertion gluteus maximus; 15, vastus extensus; 16, long head biceps; 17, semimembranous; 18, semitendinosus; 19, tuber ischii; 20, obturator internus; 21, point of coccyx; 22, posterior coccygeal ligament; 23, 24, great sacro-sciatic ligament; 25, posterior superior spinous process; 26, posterior sacro-iliiac ligaments.

Rear Thigh Muscles

The muscles of the rear thigh. 1, fifth lumbar vertebra; 2, ilio-lumbar ligament; 3, crest of ilium;…

Separated bundles of muscle sarcostyles. Labels: d, single sarcostyle.

Bundles of Sarcostyles

Separated bundles of muscle sarcostyles. Labels: d, single sarcostyle.

Scaleni muscles.

Scaleni Muscles

Scaleni muscles.

Muscles on the dorsum of the scapula and triceps.

Muscles of the Scapula and Triceps

Muscles on the dorsum of the scapula and triceps.

The serratus magnus muscle is a large curved quadrilateral muscle occupying the side of the chest and inner wall of the axilla.

Serratus Magnus Muscle

The serratus magnus muscle is a large curved quadrilateral muscle occupying the side of the chest and…

Muscles of the shoulder and arm.

Muscles of the Shoulder and Arm

Muscles of the shoulder and arm.

Shown are the muscles of the deltoid region and back of the arm

Back View of Shoulder Muscles

Shown are the muscles of the deltoid region and back of the arm

Shown are the muscles of the posterior wall of the axilla and the front of the arm (the biceps being divided).

Front View of Shoulder Muscles

Shown are the muscles of the posterior wall of the axilla and the front of the arm (the biceps being…

This diagram shows the action of the muscles to keep the body erect.

Standing Muscles

This diagram shows the action of the muscles to keep the body erect.

"1, longitudinal section; 2, 3, 4, cross section; 5, detached disk; 7, 8, fibrillae." — Richardson, 1906

Striped Muscle

"1, longitudinal section; 2, 3, 4, cross section; 5, detached disk; 7, 8, fibrillae." — Richardson,…

"A Portion of a Striped Muscular Fiber. Highly magnified. A, fiber separating into disks; B, fibrillae; C, cross-section of a disk." — Blaisedell, 1904

Striped Muscular Fiber

"A Portion of a Striped Muscular Fiber. Highly magnified. A, fiber separating into disks; B, fibrillae;…

"A Portion of Striped Muscular Fiber, showing Stripes and Nuclei. Highly magnified." — Blaisedell, 1904

Striped Muscular Fiber

"A Portion of Striped Muscular Fiber, showing Stripes and Nuclei. Highly magnified." — Blaisedell,…

The temporal muscle is a broad muscle situated at the side of the head and occupying the entire extent of the temporal fossa. Shown is the temporal muscle, the zygoma and Masseter removed.

Temporal Muscle

The temporal muscle is a broad muscle situated at the side of the head and occupying the entire extent…

The rectus muscle of the thigh; to show the constituent parts of a muscle. Labels: R, the fleshy belly; to, Tendon of origin; ti, Tendon of insertion; n, Nerve of supply; a, Artery of supply; v, Vein; l, Lymphatic vessel; P, the patella.

Thigh Muscle

The rectus muscle of the thigh; to show the constituent parts of a muscle. Labels: R, the fleshy belly;…

The muscles on the back of the thigh.

Muscles on the Back of the Thigh

The muscles on the back of the thigh.

The posterior surface of the thigh with superficial muscles removed.

Thigh Muscles

The posterior surface of the thigh with superficial muscles removed.

"Some of the Larger Muscles on the back of the Thigh. Powerful tendons at the hip and on the back of the knee are well shown." — Blaisedell, 1904

Thigh Muscles

"Some of the Larger Muscles on the back of the Thigh. Powerful tendons at the hip and on the back of…

The muscles of the back of the thigh.

Back Thigh Muscles

The muscles of the back of the thigh.

Superficial muscles of the right thigh, anterior view.

Anterior View of the Superficial Muscles of the Thigh

Superficial muscles of the right thigh, anterior view.

Superficial muscles of the right thigh, lateral view.

Lateral View of the Superficial Muscles of the Thigh

Superficial muscles of the right thigh, lateral view.

Muscles of the thigh.

Muscles of the Thigh

Muscles of the thigh.

Muscles of the thigh.

Muscles of the Thigh

Muscles of the thigh.

Muscles of the thigh.

Muscles of the Thigh

Muscles of the thigh.

Superficial muscles of the right thigh, posterior view.

Posterior View of the Superficial Muscles of the Thigh

Superficial muscles of the right thigh, posterior view.

Muscles of the thoracic region (chest area).

Muscles of the Thoracic Region

Muscles of the thoracic region (chest area).

The muscles of the thoracic wall.

Muscles of the Thoracic Wall

The muscles of the thoracic wall.

Muscles of the thorax.

Muscles of the Thorax

Muscles of the thorax.

Muscles of the thumb.

Muscles of the Thumb

Muscles of the thumb.

Muscles of the tongue. The chief muscles connecting the tongue and tongue bone to the lower jaw are the genio-glossus and stylo-glossus.

Muscles of the Human Tongue

Muscles of the tongue. The chief muscles connecting the tongue and tongue bone to the lower jaw are…

View of the muscles of the tongue - lower surface.

Muscles of the Tongue

View of the muscles of the tongue - lower surface.

View of the under surface of the tongue with its muscles.

Muscles of the Tongue

View of the under surface of the tongue with its muscles.

Muscles of the tongue.

Muscles of the Tongue

Muscles of the tongue.

Muscles on the dorsum of the tongue.

Muscles of the Tongue

Muscles on the dorsum of the tongue.

Left - back view of the muscles of the trunk. Right - front view of the muscles of the trunk.

Trunk Muscles

Left - back view of the muscles of the trunk. Right - front view of the muscles of the trunk.

The anterior muscles of the trunk.

Trunk Muscles

The anterior muscles of the trunk.

Front view of the body, showing deep muscles.

Deep Muscles of the Trunk of the Body

Front view of the body, showing deep muscles.

Back view of the trunk of body, showing spinal deep muscles.

Deep Muscles of the Trunk of the Body

Back view of the trunk of body, showing spinal deep muscles.