Muscle OIA's - Exam 2 Flashcards
Serratus Ventralis
O - First 8-9 Ribs
I - Scapula
A - Pulls scapula forward and rotates it upward
Scalenus Posterior
O - Cervical Vertebrae
I - Rib 2
A - Acting together, elevates rib during deep inhalation; acting singly, laterally flexes vertebral column
Scalenus Medius
O - Cervical Vertebrae
I - Rib 1
A - Acting together, elevates rib during deep inhalation; acting singly, laterally flexes vertebral column
Scalenus Anterior
O - Cervical Vertebrae
I - Rib 1
A - Acting together, elevates rib during deep inhalation; acting singly, laterally flexes vertebral column
Subscapularis
O - Scapula
I - Humerus
A - Medially rotates humerus; stabilizes shoulder
External Intercostal
O - Inferior border of rib above
I - Superior border of rib below
A - Raise rib at inhalation and thereby increase size of thoracic cavity
Internal Intercostal
O - Superior border of rib below
I - Inferior border of rib below
A - Draw adjacent ribs together and lower ribs at exhalation
Triceps Brachii Long Head
O - Scapula
I - Ulna
A - Extends Forearm
Triceps Brachii Lateral Head
O - Humerus
I - Ulna
A - Extends Forarm
Triceps Brachii Medial Head
O - Humerus
I - Ulna
A - Extends Forearm
Brachaillis
O - Humerus
I - Ulna
A - Flexes Forearm
Anconeus
O - Humerus
I - Ulna
A - Extends Forearm
Brachioradialis
O - Humerus
I - Radius
A - Flexes Forearm
Extensor Carpi Radialis
O - Humerus
I - Second Metacarpal
A -Extends Hand
Extensor Digitorum Communis
O - Humerus
I - Four Digits (fingers)
A - Extends Digits
Extensor Carpi Ulnaris
O - Humerus & Ulna
I - 5th Metacarpal
A - Extends and adducts wrist
Biceps Brachii
O - Scapula
I - Radius
A - Flexes and supinates forearm
Pronator Teres
O - Humerus & Ulna
I - Radius
A - Pronates Forearm
Flexor Carpi Ulnaris
O - Humerus & Ulna
I - Pisiform, hamate, and 5th metacarpal
A -Flexes and adducts wrist
Palmaris Longus
O - Humerus
I - Radius
A - Flexes and supinates forearm
Flexor Carpi Radialis
O - Humerus
I - 2nd & 3rd Metacarpals
A - Flexes and abducts wrist
Flexor Digitorum Profundus
O - Ulna
I - Distal Phalanges
A - Flexes all distal phalanges
Sartorius
O - Ilium
I - Tibia
A - Flexes knee; flexes thigh and rotates it laterally
Gracilis
O - Pubis
I - Tibia
A - Flexes knee; adducts thigh