Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.

Remove ads
Don't know
Know
remaining cards
Save
0:01
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:
Retries:
restart all cards




share
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

Week 11

11/20

QuestionAnswer
Q What four cranial bones form the floor of the temporal fossa? A frontal, temporal, parietal, and great wing of the sphenoid?
Q What is another name for the junction of the four cranial bones which form the temporal fossa? A Pterion
Q What is unique about the suture that form the pterion? A the bones overlap instead of interlocking
Q What forms the superior/posterior border of the temporal fossa? A There is none/it is open
Q The temporalis mm. is a powerful elevator of the mandible. What would the pos. fibers of this mm. also accomplish? A pos. fibers can cause retraction of the mandible
Q The temporalis mm. is a powerful full elevator of the mandible. Aside from this action, what can the ant. fibers of this m. accomplish? A ant. fibers may cause a small amount of protraction
Q What is unique about the insertion of the masseter mm.? A It inserts directly into the ramus/tuberosity of the mandible. That means there isn't a confluence of fibers into a ligamentous attachment like usual.
Q Here's an easy one for you: What is the action of the masseter m.? A Powerfull elevator of the mandible
Q What is the innervation of the masseter m.? A the masseteris n., easy enough. Remember this is motor off CNV3
Q What bone must be removed to visualize the infratemporal fossa? A The RAMUS of the mandible. This is what we did in gross lab. You cut the coronoid process, condyloid process, and the angle of the mandible.
Q What is the sup border of the infratemporal fossa? What about the inf border? A Sup= great wing of the sphenoid/infratemporal line (that's just what it sounds like it is), and inf = medial pterygoid m. [N4,55]
Q What n. passes through the foramen ovale? A CNV3
Q What BV gives major blood supply to the dura? Where does this BV enter the cranium? A The middle meningeal a. enters the cranium through the foramen spinosum. [N71]
Q What is the middle meningeal a. a branch of? A The first part of the maxillary a., which is a branch off the ext carotid a. [N71]
Q What are the ant/lat borders of the infratemporal fossa? A ant = pos aspect of maxilla bone, and lat = int surface of mandibular ramus (this is before you cut it off to see the fossa)
Q What n. bifurcates around the middle meningeal a.? A auriculotemporal n. [G884]
Q Does the internal carotid a. pass through the foramen lacerum? A No, it only lays next to it. The internal carotid a. passes into the cranium via the carotid canal
Q What a./n. passes through the mandibular/alveolar foramen? A This is on the medial side of the ramus of the mandible, and the inf. alveolar a./n. pass through it.
Q what n./a. passes through the infraorbital foramen? A inf. orbital a. and CNV2
Q At the sup. border of the ext carotid a., what two aa. does it branch into? Which is larger? A Maxillary a. (larger), and superficial temporal a.
Q Which part of the maxillary a. is associated with the pterygoid m.? A second/muscular/pterygoid part [G889]
Q What are the two major branches off the maxillary a. in the first/mandibular part? A middle meningeal, and inf alveolar a. [G889]
Q What branches off the maxillary a. are associated with the first/mandibular part? A middle meningeal, inf alveolar, deep auricular, ant. tympanic, and accessory meningeal
Q What a. off of the first part of maxillary a. supplies the external acoustic meatus? A deep auricular artery
Q Which part of the maxillary a. occupies both the infratemporal fossa and the temporal fossa? A The second/muscular/pterygoid part
Q What branches are found off the second part of the maxillary a.? A going from prox to dist = pterygoid, masseteric, deep temporal, and buccal aa.
Q The pterygoid venous plexus lies between the temporalis m. and the lat. pterygoid m. . This provides communication between what two structures? A The facial vein, and the cavernous sinus of the dura mater.[G794,890]
Q What ganglia is located just inferior to the foramen ovale? A Otic/Arnold's ganglion (this is parasympathetic) [G886]
Q The glossopharyngeal n. uses what structure to carry it's sensory fibers to the parotid gland? A The glossopharyngeal n. carries sensory to the parotid gland by means of the otic/arnold's ganglia. According to gray's, this looks to be accomplished by the auriculotemporal n. [G887]
Q What n. creates a loop around the middle meningeal a.? A auriculotemporal n.
Q Sensory to the auricle and the TMJ are supplied by what n.? A auriculotemporal a.
Q Just before entering the alveolar foramen with the inf alveolar a., what n. branches off, and what does it innervate? A The mylohyoid n., which innervates the mylohyoid, and the ant. belly ofthe digastric m. [G885]
Q What are the two components of the lingual n.? A CNV3, whose fibers innervate general sensory to the ant 2/3 of the tongue, and the Chordae tympani n. (from the facial) which gives special sensory to the ant 2/3 of the tongue.
Q Remember how CN 7 and 8 enter the ear, and 7 continues through? Where does it exit, as what, and where does it do? A It exits the prterygotympanic fissure as the chorda tympani of the facial n. and heads for the tongue, and sublingual/submandibular glands. [G884-885]
Created by: GrossAnatomy1