Ear Flashcards
1
Q
What artery supplies the lateral surafce of the tympanic membrane (eardrum)
A
deep auricular branch of the maxillary artery
2
Q
What artery supplies the medial portion of the tympanic membrane?
A
- anterior tympanic artery (branch of the maxillary artery)
- posterior tympanic artery (branch of the posterior auricular artery)
3
Q
How is blood drained from the tympanic membrane?
A
- lateral side drains into external jugular vein
- medial side drains into transverse venous sinus, which drains into internal jugular vein
4
Q
How is the typmanic membrane formed?
A
The typmpanic membrane is formed from the invagination of the synaptic cleft an
