Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Your email address is only used to allow you to reset your password. See 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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

RS Anatomy

Respiratory System Anatomy - Paranasal sinuses

What is an air sinus? A space in the bone lined by thin respiratory mucosa with a few goblet cells and glands
What is the function of the paranasal sinuses? 1) Resonance of the voice 2) Decrease the weight of the skull 3) Protection
Change in voice indicates: Sinusitis
Describe the frontal air sinus: It lies in the frontal bone of the skull and is triangular in shape
Where does the frontal air sinus drain? In the infundibulum at the level of the middle meatus
The frontal air sinus is innervated by: The supraorbital nerve which arises from the supraorbital foramen
The Ethmoidal air sinuses are divided into: Anterior, middle, and posterior ethmoidal cells
The posterior drains into the: Superior meatus
The anterior and middle drain into the: Middle meatus Anterior --> semilunaris Middle --> Bulla ethmoidalis
Describe the maxillary air sinus: Can be shown in x ray Located at the maxilla and pyramidal in shape Becomes larger with enlargement of facial bones Apex directed laterally towards the zygomatic arch Base on lateral wall of nose
Maxillary air sinus drainage: Bad venous drainage, because its opening is high up Opens into the middle meatus
Extraction of one molar tooth causes : Fistula formation and drainage of the maxillary sinus
How is this treated? By an incision anterior to the lower part of the maxillary air sinus
The maxillary air sinus is innervated by: The infraorbital nerve and anterior superior alveolar branches from the maxillary nerve
What are the relations of the maxillary air sinus? Above: Orbital plate Below: Upper molar teetn and premolars Behind: Infratemporal fossa Medial: Lower part of the nasal cavity
Describe the sphenoid air sinus: Located in the body of the sphenoid bone and above it, is the pituitary gland which lies in the sella turcica
Where does the sphenoid air sinus drain? The sphenoethmoidal recess
A tumor in the pituitary gland can affect which sinus? The sphenoid air sinus
What is the innervation of the sphenoid air sinus? Posterior ethmoidal branch of opthalmic Orbital branches from the maxillary
What are the relations of the sphenoid air sinus? Above: The pituitary gland and optic chiasma Laterally: The cavernous sinus which contains nerves (like the abducens nerve) and internal carotid artery Below and in front: The nasal cavity
Created by: Ulaisl
Popular Anatomy sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards