By: Caitlyn Hughes Muscle Movement

What is the main movement of the platysma? Tenses the skin of neck

What is the main movement of the serratus anterior? Rotates the scapula so that the interior angle moves laterally and upward

What is the main movement of the orbicularis oris? Closes lips

What is the major movement of the pectoralis minor? Draws the scapula forward and downward

What is the main movement of the temporalis? Closes jaw

What is the major movement of the sternohyoid? Depresses larynx and hyoid bone if the mandible is fixed

What is the major movement of the orbicularis oculus? Closes eye

What is the major movement of the sternocleidomastoid? Flexes and laterally rotates head

What is the major movement of the pectoralis major? Major flexor of the arm, performs medial arm rotation, adducts arm

What is the major movement of the intercostal muscles? Internal: Draws ribs together and depresses rib cage (expiration) External: Pulls ribs towards one another and elevates rib cage (inspiration)

What is the major movement of the latissimus dorsi? Arm extensor, arm adductor, medial rotation at shoulder

What is the major movement of the rectus abdominus? Flex and rotate lumbar region of spine

What are the major movements of the internal and external obliques? Flex spine and compress abdominal wall

What is the major movement of the triceps brachii? Forearm extension

I don’t feel like typing the whole question anymore so I hope you guys get the point

Vastus lateralis Extends and stabilizes knee

Brachioradialis Synergist in forearm flexion

Semimembranosus Extends thigh, flexes knee

Biceps brachii Flexes elbow joint and supinates forearm

Soleus Plantar flexion

Deltoid Arm abduction

Teres major Extends, medially rotates, and adducts humerus

Gluteus maximus Major thigh extensor

Trapezius Stabilizes, raises, retracts, and rotates scapula

Tibialis anterior Dorsiflexion

Sartorius Flexes, abducts, and laterally rotates thigh; flexes knee

Brachialis Forearm flexion

Fibularis longus Planter flexion, foot eversion

Supraspinatus Initiates abduction

Biceps femoris Extends thigh, flexes knee

Flexor carpi radialis Wrist flexor, abducts hand

Infraspinatus Rotates humerus laterally

Adductor longus Adducts, flexes, and medially rotates thigh

Gracilis Flexes and medially rotates leg; adducts thigh

Vastus medialis Extends knee

Semitendinosus Extends thigh, flexes knee

Gluteus medius Abducts and medially rotates thigh

Extensor digitorum longus Toe extension

Diaphragm Breathing

Gastrocnemius Plantar flexion