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Muscles III
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Serratus ventralis
- Origin
- Insertion
- Action
Origin
: ribs
Insertion
: Scapula
Action
: draws scapula ventrally & cranially
External intercostal
- Origin
- Insertion
- Action
Origin
: rib #n
Insertion
: rib #(n+1)
Action
: lift ribs; draws ribs out
Internal intercostals
- Origin
- Insertion
- Action
Origin
: rib #n
Insertion
: rib #(n-1)
Action
: draw ribs together; lower ribs during respiration
Supraspinatus
- Origin
- Insertion
- Action
Origin
: scapula
Insertion
: humerus
Action
: extend humerus
Infraspinatus
- Origin
- Insertion
- Action
Origin
: scapula
Insertion
: humerus
Action
: rotates humerus laterally
Teres major
- Origin
- Insertion
- Action
Origin
: scapula
Insertion
: humerus
Action
: flex and rotate humerus
Splenius
- Origin
- Insertion
- Action
Origin
: spines of thoracic vertebrae
Insertion
: occipital bone
Action
: turn and raise the head
Rhomboideus group
- Origin
- Insertion
- Action
Origin
: cervical & thoracic vertebrae
Insertion
: scapula
Action
: draw scapula anteriorly & dorsally
Biceps brachii
- Origin
- Insertion
- Action
Origin
: scapula
Insertion
: radius
Action
: flexes elbow/forelimb
Epitrochlearis
- Origin
- Insertion
- Action
Origin
: fascia of latissimus dorsi
Insertion
: ulna
Action
: extends elbow/forelimb
Triceps brachii - Long head
- Origin
- Insertion
- Action
Origin
: scapula
Insertion
: ulna
Action
: extend elbow/forelimb
Palmaris Longus
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: digits
Action
: flexes digits
Flexor carpi radialis
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: 2nd & 3rd metacarpals
Action
: flex wrist
Flexor carpi ulnaris
- Origin
- Insertion
- Action
Origin
: humerus & ulna
Insertion
: carpals
Action
: flex wrist
Pronator teres
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: radius
Action
: rotates radius, pronates palm
Brachialis
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: ulna
Action
: flexes elbow/forelimb
Triceps brachii - Lateral head
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: ulna
Action
: extend elbow/forelimb
Brachioradialis
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: radius
Action
: supinates front paw
Triceps brachii - Medial head
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: ulna
Action
: extend elbow
Extensor carpi radialis longus/brevis
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: 2nd & 3rd metacarpals
Action
: extend wrist
Extensor carpi ulnaris
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: 5th metacarpal
Action
: extend wrist
Extensor digitorum communis & lateralis
- Origin
- Insertion
- Action
Origin
: humerus
Insertion
: digits/proximal phalanges
Action
: extend digits
Author
tinibr11
ID
225290
Card Set
Muscles III
Description
EEOB 2510: Muscles III - origins, insertions, and actions
Updated
2013-06-28T16:36:25Z
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