RIU 332 Lecture Notes - Lecture 66: Erector Spinae Muscles, Spinal Canal, Cauda Equina

• School: GVSU
• Department: Radiation and Imaging - Ultrasound
• Course: RIU 332
• Professor: Taytana Beaves

Document Summary

Cervical vertebrae, c1 to c7: smallest, lightest vertebrae, c3 to c7 share the following features, oval body ii. iii. iv. Transverse foramen in each transverse process c. d: c1 (atlas) and c2 (axis) have unique features, atlas (c1, no body or spinous process ii. Consists of anterior and posterior arches, two lateral masses. They also hold the vertebral column erect: an intermediate group of muscles, the erector spinae, runs from the pelvis to the skull, extending from the vertebrae to the ribs i. ii. Consists of three subgroups on each side of the vertebrae: iliocostalis, longissimus, and spinalis. Cervical and lumbosacral enlargements give rise to the spinal nerves of the limbs: nerves from the end of the spinal cord from the cauda equina, shorter than the vertebral column, three meningeal layers surround the spinal cord. From superficial to deep they are: dura mater, arachnoid mater iii.