MUSCULAR SYSTEM Flashcards
(42 cards)
bend a body part
Flexors
straighten a body part
Extensors
move the body part away from the body’s midline
Abductors
pull a body part toward the midline
Adductors
- lowers a body part
Depressors
raise a body part
Levators
rotates a part
Rotators
near tympanum; closes the jaw during feeding or biting
Temporalis
posterior to temporalis; lowers jaw to open the mouth
Depressor mandibulae
shoulder region; abducts the arm away from the body
Dorsalis scapula
posterior to scapula; moves forelimb upward/backward
Latissimus dorsi
mid-dorsal trunk; extends back and elevates the head
Longissimus dorsi
lateral trunk; helps bends the back laterally
Ilio-lumbaris
posterior trunk; assists in moving the back and the urostyle.
Coccygeo-sacralis
– between ilia; aids in extending and stabilizing the back
Coccygeo-iliacus
floor of mouth; raises it during respiration/swallowing
Mylohyoid
under mylohyoid; draws hyoid forward/upward.
Geniohyoid
tip of jaw; closes nares and lifts the lower jaw
Submentalis
shoulder; adducts (toward) or protracts arm forward
Deltoid
upper arm; extends forearm for pushing or jumping
Triceps brachii
chest; flexes (bends) forearm at the elbow joint.
Sternoradialis
chest; rotates or adducts arms toward the body.
Pectoralis
chest; moves the overlying skin and may assist in ventilation.
Cutaneous pectoris
abdomen; supports the abdominal organs and constricts abdomen.
Rectus abdominis