Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

UKCD ANA534 Body Cav

learning objectives for body cavity development

The intra-embryonic coelom will eventually be divided into four body cavities. List them. Pericardial cavity (1); pleural cavities (2); and peritoneal cavity (1).
What two partitions must develop to form these cavities? The diaphragm and the fibrous pericardium.
How is the pericardial cavity in free communication with the peritoneal cavity? Through the paired pericardioperitoneal canals.
What forms the fibrous pericardium? Two pleuropericardial membranes (sheets of somatic mesoderm) form the fibrous pericardium by growing inward from either lateral aspect of the embryo.
What three sources fuse to form the diaphragm? septum transversum, two pleuroperitoneal membranes and dorsal mesentery
What part does the septum transversum form? forms the central portion of the diaphragm - including the central tendon
What part does the two pleuroperitoneal membranes form? largely responsible for the peripheral regions of the diaphragm, pleura and perioneum that cover its upper and lower surfaces respectively
What part does the dorsal mesentery of the esophagus forms ? the crura of the diaphragm.
Where is the septum transversum formed and what spinal cord levels innervate it? The septum transversum forms in the neck region by fusion of the third, forth and fifth cervical segments and is therefore innervated by spinal nerves from C3, 4, 5.
How do the pleural cavities form? As the lung buds develop, the splanchnic mesoderm covering them is invaginated into the pericardioperitoneal canals. This portion of each canal becomes the pleural cavity on each side.
When does the respiratory system start to form? About week 4
How does the respiratory system start to form? a median longitudinal groove (laryngotracheal groove) develops in pharyngeal floor, edges of groove fuse and form a laryngotracheal tube whose lumen is separated from foregut.
What else occurs in respiratory formation? A lung bud grows outward from either side of the tube invaginating the intra-embryonic coelom. This part of the coelom forms the pleural sacs around each lung bud. Visceral and parietal pleura then form.
Created by: wiechartm