2-20_UTA_Review_SLIDES_-_Skeletal_Muscles

Biceps Brachii

Main elbow flexor.

Deltoid

Covers shoulder joint, arm abductor.

Teres Major

Arm adductor, some internal rotation.

Masseter

Chewing muscle.

Obicularis Oris

Puckers lips.

Frontalis

Raises eyebrows.

Supraspinatus

Arm abduction.

Sphincter muscles

Control opening and diameter of windpipe and throat.

Gluteus Maximus

Hip extensor and abductor.

Iliacus

Hip flexor.

Sartorius

Flexes the knee, insertion at the medial surface of proximal tibia.

Extensor Digitorum Longus

Toe and foot extensor.

Flexor Pollicis

Flexes the thumb.

Posterior Muscles of the Neck

Aid in the movement of raising head backward.

Flexor Digitorum

Flexes digits 2-5.

Pectoral Girdle

Supports the limbs, associated with appendicular muscles.

Transverse Abdominis

Flattens abdomen.

Extensor Carpi Muscles

Extend wrist.

Pelvic Floor

Includes urethral sphincter and anal sphincter.

Diaphragm

Primary muscle of respiration.

Inferior Peroneal Retinaculum

Supports the extensor tendons of the foot.

Quadriceps

Extends the knee.

Semimembranous

Hip extensor and knee flexor, part of the hamstrings.