VAN 121: Veterinary Gross Anatomy-II (2+2)

SECOND LAYER

• This muscle extends from ninth to tenth dorsal vertebra to about the level of the middle of the funicular part of the ligamentum nuchae. It is under the cover of trapezius and consists of cervical (rhomboideus cervicis) and dorsal (rhomboideus thoracis) parts
• Origin: Ligamentum nuchae, and the spines of dorsal vertebrae from the first to about seventh or eighth
• Insertion: The medial surface of the cartilage of the scapula

• Action: To draw the shoulder upwards and forwards

• Blood supply: Superior cervical and dorsal arteries
• Nerve supply: Fifth, sixth, seventh, eighth cervical spinal nerves