Lesson 2 Flashcards
(143 cards)
respiration
exchange of gas between an organism and its environment
essential for voice production
inspiration
the process bringing air into the lungs
aka inhalation
expiration
process of eliminating air from the lungs
aka exhalation
vertebral column- FUNCTION
provides protection for the spinal cords
types of vertebrae
- 7 Cervical
- 12 thoracic
- 5 lumbar
- 1 sacrum
- 1 coccyx
7 cervical (vertebrae)
-neck
C1-C7
atlas C1
Axis C2
atlas C1 (cervical)
supports the weight of the skull
very small spinous process
axis C2 (cervical)
fits into atlas and allows for rotation and pivoting of the skull
12 thoracic (vertebrae)
-behind ribcage
T1- T12
-larger spinous and transverse processes than cervical vertebrae
-superior and inferior costal facets are the attatchment points for ribs
5 lumbar (vertebrae)
- lower back
- L1 - L5
- largest and strongest vertebrae
- provide attachment points for back and abdominal muscles
1 sacrum (vertebrae)
- hips
- S1 - S5 fuse together to form sacrum
sacral foramina
provides a passageways for sacral nerves
1 coccyx (vertebrae)
- tailbone
- 3-4 coccygeal vertebrae fuse together to form the coccyx
- articulated with sacrum by means of a small disc
structures of a vertebrae
- body
- pedicles
- neural arch
- vertebral foramen
- spinous process
- transverse process
- superior and inferior articular facets
- anterior and posterior longitudinal ligaments
body (structures of a vertebrae)
- corpus
- anterior large plate like portion
pedicles (structures of a vertebrae)
lateral sides of the body project posteriorly then join at midline
neural arch (structures of a vertebrae )
created where pedicles join at midline
vertebral foramen (structures of a vertebrae )
canal created when vertebrae are staked, passage of spinal cord
spinous process (structures of a vertebrae )
- extends dorsally and inferiorly from nueral arch
- attachment point for muscles and ligaments
transverse process (structures of a vertebrae )
- projects laterally on either side of the vertebrae
- attachment point for muscles and ligaments
superior and inferior articular facets (structures of a vertebrae )
allow vertebrae to stack on top of one another
anterior and posterior longitudinal ligaments (structures of a vertebrae )
- extend through the length of spinal column
- bind the bodies of the vertebrae together
intervertebral discs
- fibrocartilaginous discs found between vertebrae except for C1 & C2
- provides support and cushion for vertebrae
spinal curvature - NORMAL
- cervical curve : Concave
- thoracic curve: Convex
- lumbar curve : Concave
- sacral curve : Convex