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Details

OCCC A&P I Muscle Lab
Muscles with actions
30
Anatomy
Undergraduate 2
12/04/2009

Additional Anatomy Flashcards

 


 

Cards

Term
Platysma
Definition

Action:

Depresses mandible, pulls down lower lip, tenses neck skin

Term
Orbicularis oculli
Definition

Action:

Contracts individually around the eye

(blinking, winking, squinting)

Term
Temporalis
Definition

Action:

Closes jaws by elevating mandible

Term
Buccinator
Definition

Action:

Retraction of the mandible

Term
Digastric
Definition

Action:

Open mouth, depress mandible, elevate hyoid bone

Term
Mylohyoid
Definition

Action:

Elevates hyoid bone & floor of mouth, enabling tongue to exert upper & backward pressure

Term
Trapezius
Definition

Action:

Elevate, depress and rotate scapula

Term
Serratus Anterior
Definition

Action:

Prime mover to protract scapula, abduction & raising of arm (punching)

Term
Supraspinatus
Definition

Action:

Abduction of arm, stabilizes shoulder

Term
Infraspinatus
Definition

Action:

Rotates humerus laterally, stabilizes shoulder

Term
External Intercostals
Definition

Action:

Elevates rib cage during inhalation

Term
Internal Intercostals
Definition

Action:

Depress rib cage during exhaltion

Term
External Oblique
Definition

Action:

Aids in flexion of the vertebral column, trunk rotation

Term
Internal Oblique
Definition

Action:

Aids in flexion of the vertebral column, trunk rotation

Term
Transverse Abdominus
Definition

Action:

Compresses abdomen

Term
Diaphragm
Definition

Action:

Agonist of inspiration, flattens to increase thoracic volume

Term
Flexor digitorum superficialis
Definition

Action:

Flexor of wrist and middle phalanges

Term
Flexor carpi radialis
Definition

Action:

Wrist flexion, abduction of hand

Term
Brachioradialis
Definition

Action:

Synergist in forearm flexion

Term
Pronator teres
Definition

Action:

Pronates forearm

Term
Supinator
Definition

Action:

Supinates forearm

Term
Extensor carpi radialis longus
Definition

Action:

Extends & abducts wrist

Term
Extensor digitorum
Definition

Action:

Agonist of finger extension, abducts fingers, extends wrist

Term
Vastus Lateralis
Definition

Action:

Extends and stabilizes knee

Term
Vastus medialis
Definition

Action:

Extends knee, stabilizes the patella

Term
Adductor magnus
Definition

Action:

Synergist of hamstrings in extension;

adducts, medially rotates and flexes thigh

Term
Adductor longus
Definition

Action:

Adducts, flexes and medially rotates the thigh

Term
Semimembranosus
Definition

Action:

Thigh extension, knee flexion, medial leg rotation

Term
Semitendinosus
Definition

Action:

Extends thigh, flexes knee, medial rotation of leg

Term
Soleus
Definition

Action:

Plantar flexion

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