Muscles and Their Functions

These are flashcards of the 40 most important muscles we have to know for anatomy and physiology with their action and insertion plus a picture to go along with it

30 cards   |   Total Attempts: 238
  

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Cards In This Set

Front Back
Question 1
Orbicularis oculi/ ~Orign ~Insertion ~Action
O-Maxilla, frontal bone i-Continues around orbit and returns to origin a-blinking (closure)
Question 2
Orbicularis oris/ ~Orign ~Insertion ~Action
Omaxilla, mandible Ilips A-closes lips, protrudes lips
Question 3
Maseter/ ~Orign ~Insertion ~Action
O-zygomatic, maxilla I-mandible A-elevates mandible (closes lower jaw, clenches teeth
Question 4
Sternocleidomastoid/ ~Orign ~Insertion ~Action
O-sternum, clavicle I-temporal, occipital (mastoid process) A-flexes neck, elevates chin, rotates head, elevates sternum
Question 5
Platysma/ ~Orign ~Insertion ~Action
Fascia of chest lower mandible draws mouth downward
Question 6
Pectoralis major/ ~Orign ~Insertion ~Action
O-clavicle, sternum, carilage of ribs I-humerus A-flexes, adducts, roates humerus
Question 7
Pectoralis minor/ ~Orign ~Insertion ~Action
O-sternal ends of upper ribs I-scapula A-pulls scapula forward and downward, raises ribs
Question 8
Rectus abdominus/ ~Orign ~Insertion ~Action
O-pubic symphysis I-sternum(xiphoid process), ribs A-flexes vertebral column, compresses abdomen
Question 9
External oblique/ ~Orign ~Insertion ~Action
Lower ribs pelvic bones (iliac crest, linea alba) compress abdomen, flex and rotate vertebral column (depreses ribs)
Question 10
Bicpes brachii/ ~Orign ~Insertion ~Action
Scapula radius flexes forearm and shoulder; roates (supinates) hand
Question 11
Trapezius/ ~Orign ~Insertion ~Action
Occipital bone; spines of cervial and thoracic vert. clavicle, scapula elevates, retracts, depresses, or rotaes scapula
Question 12
Latissimus dorsi/ ~Orign ~Insertion ~Action
Spinous processes of S,L,T ver.; ilium humerus extends, adducts arm; rotates humerus inward
Question 13
Deltoid/ ~Orign ~Insertion ~Action
O-scapula, clavicle I-humerus A-abducts upper arm; extends, flexes, and rotates humerus
Question 14
Triceps brachii/ ~Orign ~Insertion ~Action
O-humerus, scapula I-ulna A-extends forearm, (aids in adduction)
Question 15
Glueteus maximus/ ~Orign ~Insertion ~Action
O-sacrum, coccyx, ilium I-femur; fascia A-extends, abducts leg, laterally rotates thigh