Question

List the deep muscles of supplied by posterior inferior

Answer 1

The serratus posterior inferior muscle is thin but becomes more muscular at its lowest points. It is supplied with blood by the lowest posterior intercostal artery, the subcostal artery, and the first two lumbar arteries.

The serratus posterior inferior originates on the supraspinal ligament, and the spinousprocesses of the upper two to three lumbar vertebrae (L01–L03) and the lower two thoracic vertebrae (T11–T12). It inserts on the lower borders of ribs 9–12, and is innervated by intercostal nerves 9–12.

Answer 2

The hypopharynx extends from the hyoid bone superiorly to the cricoid cartilage inferiorly. It is the most inferior of the anatomic subdivisions of the pharynx, beginning at the inferior border of the oropharynx and eventually connecting with the cervical esophagus at the cricopharyngeal muscle