Cat Muscles - Hypaxial Muscles Flashcards
External Oblique
Origin: Lumbodorsal fascia and posterior ribs
Insertion: Linea alba
Action: compress/constrict abdomen
Internal Oblique
Origin: Lumbodorsal fascia and border of pelvic girdle
Insertion: Linea alba
Action: Compress or contract the abdomen
Transversus abdominis
Origin: Lumbodorsal fascia and border of pelvic girdle
Insertion: Linea alba
Action: Compress or constrict the abdomen
Rectus abdominis
Origin: Pubis
Insertion: Sternum and costal cartilages
Action: Compress or constrict the abdomen
Serratus Abdominis
Origin: Pubis
Insertion: Sternum and costal cartilages
Action: Compresses abdomen; retracts ribs and sternum
Serratus Dorsalis
Origin: Aponeurosis from medial dorsal line
Insertion: Last ribs
Action: Draws ribs forward
Scalenes
Origin: Ribs
Insertion: Transverse process of cervical
Action: Draws ribs forward and bends the neck
External Intercostals
Origin: Ribs
Insertion: Ribs
Action: Draws ribs forward
Internal Intercostals
Origin: Ribs
Insertion: Ribs
Action: Draws ribs back