Muscles of the Head, Neck, and Trunk

The common tendon of the gastrocnemius and soleus muscles.

Muscles that oppose the actions of the iliopsoas and pectineus muscles.

A specific muscle in the lower limb commonly used for injections.

A type of muscle tissue responsible for voluntary movement.

A type of muscle tissue found in internal organs and responsible for involuntary movement.

A type of muscle tissue specific to the heart and responsible for its contractions.

A muscle in the upper arm that bends the elbow.

Muscle that assists in bending the elbow.

Muscle that extends the elbow.

Muscle that abducts (moves away from the body) the arm at the shoulder.

Muscle that extends and rotates the arm.

Muscle that stabilizes the shoulder and rotates the arm.

Muscle that flexes the forearm at the elbow.

Muscle that pronates (turns the palm downwards) the forearm.

Muscle that flexes and abducts the wrist

Muscle that flexes the wrist and adducts the hand.

Muscle extending the wrist and adducting the hand.

Muscle extending the fingers at the joints

Muscle extending the wrist and abducting the hand.

Muscle that flexes and abducts (moves away from the body) the wrist.

These are muscles located on the surface of the head and neck, including the face, scalp, and neck.

Muscle for raising eyebrows and forehead skin

Muscle involved in jaw closing

Muscle for chewing (mastication)

Muscle for closing eyelids

Muscle for closing mouth and lips

Muscle for head movement

Muscle used in chewing and facial expression.

Muscle for neck and lower face expression.

Neck muscle that moves the head and neck.

Muscle for rib cage movement (breathing).

Muscle for breathing by expanding and contracting thoracic cavity.

Muscle for scapula and rib movement

Large back muscle for arm extension.

Muscle for shoulder and neck support

Muscles for posture and back extension

Muscle for scapula movement, retraction

Straight abdominal muscle; important for flexion of spine.

Muscle for twisting the trunk

Muscle for twisting the trunk and supporting the abdomen.

Large chest muscle for arm flexion; adduction

Chest muscle contributing to scapula movement under pectoralis major.

Muscles for producing facial expressions. They are located superficially in the face, near the skin.

Muscles involved in chewing (mastication).

Muscles that act on the shoulder joint and contribute to movements of the arm.

Specific movements or functions that muscles perform.

Latin term meaning "straight"

The outermost layer of connective tissue surrounding a muscle.

Connective tissue that surrounds individual muscle fibers.

Connective tissue surrounding a fascicle (bundle) of muscle fibers.

The cell membrane of a muscle fiber.

Long, thin structures within muscle fibers that contain contractile proteins.

Cellular organelles that produce energy for muscle contraction.

The functional unit of muscle contraction.

Region in a sarcomere containing thick filaments.

Region in a sarcomere containing thin filaments.

Region in a sarcomere where thick and thin filaments do not overlap

Boundary separating adjacent sarcomeres.

Control center of the cell.

A muscle located on the medial side of the thigh, involved in hip adduction.

A hip flexor muscle, composed of two parts (iliacus and psoas major), crucial for hip flexion.

The longest muscle in the human body, running diagonally across the thigh, assisting in hip flexion, abduction, and external rotation.

A part of the quadriceps femoris, involved in knee extension and hip flexion.

A muscle of the quadriceps femoris that extends the knee joint.

A muscle of the quadriceps femoris, extending the knee.

A muscle of the medial thigh, acting to adduct and flex the thigh at the hip and flex the leg at the knee.

A hamstring muscle, flexing the knee and extending the hip.

A hamstring muscle, involved in knee flexion and hip extension.

A hamstring muscle, extending the hip and flexing the knee.

The largest gluteal muscle, responsible for hip extension.

A gluteal muscle, crucial for hip abduction and stabilization.

A thigh muscle, primarily involved in adduction of the hip.

A muscle involved in hip flexion, abduction, and medial rotation .

A superficial calf muscle involved in plantarflexion of the foot and knee flexion.

A deep calf muscle that plantarflexes the foot.

A lateral leg muscle responsible for eversion and plantarflexion of the foot.

A lateral leg muscle, assisting in eversion and plantarflexion of the foot.

An anterior leg muscle, crucial for dorsiflexion and inversion of the foot.

A posterior leg muscle, essential for plantarflexion and inversion of the foot.

Group of three muscles (biceps femoris, semitendinosus, semimembranosus) at the back of the thigh that flex the knee and extend the hip.

A group of four muscles (rectus femoris, vastus lateralis, vastus medialis, vastus intermedius) on the anterior thigh responsible for knee extension.