KINESIOL 1a03 muscles movements

Sternocleidomastoid

Sternocleidomastoid

Neck flexion when sternal & clavicular head contracts, neck rotation when clavicular head contracts

Trapezius

Neck extension lateral flexion & scapula elevation, depression, retraction & rotation

Erector spinae

Posture, trunk extension & lateral flexion, rotation of vertebral column

Scalene muscles

Elevate first two ribs during inspiration

External intercostals

Elevate ribs ( hands in pockets)

Internal intercostals

Depress ribs

Transversus thoracis

Depress ribs (from sternum to costal cartilage)

Diaphragm

Increases volume of thoracic cavity by flattening it's dome shape

Abdominal wall

Flex & rotate vertebral column

Rectus abdominis

Flexion of vertebral column, compression

External abdominal oblique

Flex & rotate vertebral column (hands in pockets)

Internal abdominal oblique

Flex & rotate vertebral column (opposite to hands in pockets)

Transversus abdominis

Compression of vertebral cavity

levator scapulae

Elevate & rotate scapula

Rhomboids

Bring scapula towards vertebrae

Serratus anterior

Hold scapula to thoracic cage & helps hold arm up, scapula protraction, rotation

Pectoralis minor

Depress scapula

Pectoralis major

Arm flexion and extension, addiction, medial rotation

Latissimus dorsi

Arm extension, adduction

deltoid

arm abduction, medial and lateral rotation, flexion and extension

infraspinatus

lateral rotation (pulls humerus BACK)

Subscapularis

Medial rotation (humerus forward)

supraspinatus

Abduction of arm

Teres minor

Arm adduction, lateral rotation

Triceps brachii

Elbow extension

Anconeus

Elbow extension

Biceps brachii

Flexion and supination

Brachioradialis

Elbow Flexion

Supinator

Supination

Pronator quadratus & pronator teres

Pronation

Anterior forearm muscles

Wrist, hand & finger flexion. Abduction and addiction of wrist

Posterior forearm muscles

Extension of wrist hand, & fingers. Abduction of wrist

Thenar muscles

Abduction & addiction of fingers. Digits on thumb side. Opposition

Hypothenar muscles

Abduction and adduction of fingers on pinky side

Iliopsoas

Flex hip

Tensor fasciae latae

Leg abduction & flexion

Gluteals

Hip extension, abduction of leg,Maximus can lateral rotate

sartorius

flex hip, lateral rotation and flex knee

Hamstrings

Flexion of knee, extension of hip

quadriceps femoris group

extend knee. rectus femoris flexes hip as well

anterior compartment of lower leg

dorsiflexion, inversion and eversion

posterior compartment of lower leg

plantar flexion, inversion

intrinsic muscles of foot

flexion, abduction, adduction of toes