Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

The Diaphragm

What is the diaphragm?

a musculocutaneous partition between the thorax and abdomen

What diaphragmatic structures can you distinctly visualize radiographically?

The right and left crura
The intercrural cleft
The cupula

Where is the most dependent (lowest) crus usually displaced on lateral radiographs?

Cranial to the "Up" Crus

What factors will influence diaphragmatic position and shape?

inspiration (shallow)
expiration (deep)
intraabdominal pressure

What are the most frequent radiographic changes to the diaphragm?

general or focal outline loss of the thoracic diaphragmatic surface
changes in diaphragmatic shape and position

What is the most frequent radiographically observed diaphragmatic disease in the dog and cat?

Hernias (Traumatic and Congenital)

What information can radiographs help discover about a hernia?

location, extent, contents and secondary complications

What are the most consistent radiographic signs of a traumatic diaphragmatic hernia?

Abdominal viscera within the thorax
Displacement of the abdominal or thoracic organs (or both)
Partial or complete loss of the thoracic diaphragmatic surface outline
Asymmetry or altered slope to the diaphragm on a lateral view
The presence of pleural fluid

What are the types of Congenital diaphragmatic hernias?

Peritonealpericardial diaphragmatic hernia
Hiatal hernia
and Diaphragmatic defects

When does a peritonealpericardial diaphragmatic hernia occur?

When abdominal viscera herniates into the pericardial sac through a congenital hiatus formed between the tendinous portion of the diaphragm and the pericardial sac.

When do Hiatal hernias occur?

When a portion of stomach enters thorax through the esophageal hiatus

What are the two types of hiatal hernias?

Sliding (the gastroesophageal junction itself slides through the defect into the thorax)

Paraesophageal (the gastro-esophageal junction remains where it belongs, but part of the stomach is squeezed up into the thorax beside the esophagus)

What is a gastroesophageal intussusception?

When the stomach invaginates through the esophageal hiatus into the caudal esophagus.

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 and try again


Reload the page to try again!


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

Voice Recording