Class Notes (838,348)
Canada (510,861)
ANAT 215 (176)
Lecture 13

Lecture 13-VErtebral Column, Thoracic and Abdominal Walls.doc

9 Pages
82 Views
Unlock Document

Department
Anatomy and Cell Biology
Course
ANAT 215
Professor
Leslie W Mac Kenzie
Semester
Fall

Description
ANATOMY 215 VERTEBRAL COLUMN, THORACIC and ABDOMINAL WALLS (Reading Materials: Chapter 6: pages 164-176; Chapter 8: pages 220-222; Chapter 10: pages 281-284; Chapter 22: pages 587, 593, 595) • Vertebral column (spine): • general characteristics: • 26 bones: • vertebrae (24) • sacrum (1) • coccyx (1) • approximately 70 cm long in average adult • consists of five regions: • cervical (7 vertebrae) • thoracic (12 vertebrae) • lumbar (5 vertebrae) • sacral • coccygeal • spinal curvatures: • primary: forms in uterus CONCAVE ANTERIORLY • thoracic • sacral • secondary: forms after birth CONCAVE POSTERIORLY • cervical • lumbar • vertebral structure: (Common structural pattern) • body (anterior) • vertebral arch (posterior): • pedicles- contact with body, notches from superior/inferior • laminae- posterior portion of arch • spinous process- meeting of 2 laminae • transverse process- where lamina and pedicle meet (horizontal) • articular processes: • superior and inferior- go in opposite directions, specialized surfaces • articular facets • vertebral foramen (canal)- body and vertebral arch • intervertebral foramina- space, spinal nerves pass through opening • regional vertebral characteristics: • cervical vertebrae: • C1-C7 • C1 and C2 are atypical: • atlas (C1)- ring of bone with 2 large articular surfaces, skull makes contact with occipital condyles • axis (C2)- knob/ bony projection= dens, odontoid process, pivot point for atlas to move L↔R “no” • C3-C7 are typical: • oval body • bifid spinous processes (except C7)- split spinous process, C3-C6 • large triangular vertebral foramen • transverse foramen- hole in transverse process, major blood vessels- on side of neck, supply brain • C7 is the vertebral prominens- bump on neck • thoracic vertebrae: • T1-T12 • articulation with ribs: • facets and demifacets • heart shaped body- articulating facets for the ribs • facet orientation between vertebral arches is coronal • circular vertebral foramen • long spinous process that points downward • lumbar vertebrae: • L1-L5 • massive kidney shaped body • short, thick pedicles and laminae • short, flat hatchet shaped spinous processes • triangular vertebral foramen • facet orientation between vertebral arches in sagittal plane • sacrum: • fusion of five vertebrae • apex • base • sacral promontory- ridge • sacral foramina- holes for nerves • sacral canal- spinal cord + nerves
More Less

Related notes for ANAT 215

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit