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The Human Muscular Sys
Muscle Action, Origin, Insertion
16
Anatomy
11th Grade
03/08/2009

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Cards

Term
Frontalis
Definition
Action: Raise eyebrows
Origin: Cranium or Frontal Bone
Insertion Skin of eyebrows
Term
Temporalis
Definition
Action: Closes jaw
Origin: Temporal Bone
Insertion: Mandible
Term
Masseter
Definition
Action: Closes jaw
Origin: Temporal Bone
Insertion: Mandible
Term
Pectoralis major
Definition
Action: Flexes and Adducts humerus
Origin: Sternum, clavicle, first 6 ribs
Insertion: Humerus (Proximal)
Term
Tapezius
Definition
Action: Extends neck and adducts scapula
Origin: Occipital bone and all thoracic and cervical vertebrae
Insertion: Scapula and clavicle
Term
Rectus Abdominus
Definition
Action: flexes vertebral column
Origin: pubis
Insertion: sternum and 5th-7th ribs
Term
External olique
Definition
Action: flex and rotate vertebral column
Origin: lower 8 ribs
Insertion: Illiac crest
Term
Biceps
Definition
Action: Flex elbow and supinate forearm
Origin: scapula
Insertion: radius (proximal)
Term
Deltoid
Definition
Action: abducts humerus
Origin: Scapula, clavicle
Insertion: humerus
Term
Sartorius
Definition
Action: Flexes thigh on hip
Origin: Illium
Insertion: Tibia (Proximal)
Term
Quads group
Definition
Action: Extend knee, flex hip on thigh
Origin: Femur
Insertion: Tibia
Term
Latissimus Dorsi
Definition
Action: extend and adduct humerus
Origin: lower spine and Iliac crest
Insertion: humerus (proximal)
Term
Triceps
Definition
Action: extend elbow
Origin: shoulder and humerus (proximal)
Insertion: ulna
Term
Gluteus maximus
Definition
Action: extend hip
Origin: sacrum and ilium
Insertion: femur (proximal)
Term
Hamstring Group
Definition
Action: flex knee, extend hip
Origin: Ischium
Insertion: Tibia (proximal)
Term
Gastrocnemius
Definition
Action: plantar flex foot, flex knee
Origin: femur (distal)
Insertion: calcaneus
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