chest/abdomen muscles Flashcards
latissimus dorsi
O: spinous process of thoracic and lumbar vertebrae
I: medial humerus
A: pulls forelimb posteriorly and dorsally
pectoantebrachialis
O: manubrium
I: superficial fascia of antebrachium (near elbow)
A: adducts forelimb
pectoralis major
O: sternum
I: proximal 2/3 of humerus
A: adducts forelimb
pectoralis minor
O: sternum
I: proximal 1/2 of humerus
A: adducts forelimb
xiphihumeralis
O: sternum
I: proximal humerus
A: adducts forelimb
external oblique
O: lumbodorsal fascia and posterior ribs
I: linea alba
A: compress abdomen and flexes trunk
internal oblique
O: lumbodorsal fascia and iliac crest
I: linea alba
A: compresses abdomen and flexes trunk
rectus abdominis
O: pubic symphysis
I: sternum and costal cartilages
A: compresses abdomen and flexes trunk
transverse abdominis
O: ribs, lumbar vertebrae, ilium
I: linea alba
A: compresses abdomen and flexes trunk
