Muscles involved in respiration

10 terms by anglleyez 

Create a new folder

Advertisement Upgrade to remove ads

Diaphragm

Dome-shaped sheet of muscle and connective tissue that separates the thorax from the abdominal cavity
Muscle that is associated with quiet breathing
Muscle that moves inferiorly during inspiration
Muscle that moves superiorly during expiration

External Intercostals

Occupies superficial intercoastal space
Origin: inferior margin of superior rib
Insertion: superior margin of inferior rib
Elevates ribs during inspiration

External Oblique

Compresess the abdominal wall during expiration

Internal Intercostals

Occupies deep intercostal space
Origin: superior margin of inferior rib
Insertion: superior margin of inferior rib
Muscle that depresses the ribs in expiration

Internal Oblique

Middle of three muscles that form the anterolateral abdominal wall
Compresses the abdominal wall during expiration

Pectoralis Major

Muscle that is deep to the pectoralis major on the upper ribs
Origin: Coracoid process of scapula
Insertion: 3,4,5th ribs
Elevates ribs during inspiratio

Rectus Abdominus

Most external of the three muscles that form the anterolateral abdominal wall
Extends from xiphoid process to the symphysis pubis
Compresses abdominal wall during expiration

Serratus Anterior

Covers superior and lateral surface of the rib cage
Origin: superior 8 or 9 ribs
Insertion: vertebral border and inferior angle of scapula
Elevates ribs during inspiration

Sternocleidomastodeus

Crosses the neck from the sternum to the mastoid process
Origin: mastoid process of temporal bone
Insertion: Clavicle and sternum
Elevates sternum during inspiration

Transverse Abdominus

Deepest of three muscles that form the anterolateral abdominal wall
Compresses the abdominal wall during expiration

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set