Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

cranial nerves

theories

QuestionAnswer
Function of the nerves; sensory or motor is to sense or supply muscles Vagus is the longest; serves upper body and abdominal area.
The nucleus of the nerves cross over at the optic chiasm. most of the nerves are in the area of the brain-stem Olfactory nerves pass through holes in the cribriform plate and then to the olfactory bulb.
The olfactory tracts lead from these bulbs back to the thalamus and then to the frontal lobe for smell perception Special Visceral Afferents;;Chemical senses taste and smell if no taste then no smell
pathway of the optic nerve...optic tract--thalamus--visual cortex. Medial fibers cross, lateral fibers remain on same side (lateral same eye Special senses only found in the head=Vision II, Hearing and Ballance VII
Oculomoter parasympathetic fibers control muscles of iris for constricting pup. Controls extrinsic eye muscles Superior & Inferior rectus and Inferior oblique muscles. bilateral 6 total Trochlear contsol the superior oblique muscle of the eye. Stabilizes eye. Pulley shaped. Between pons and the midbrain
Trigeminal- Great sensory nerve of the head. largest nerve in the body. Trigeminal-Three divisions: opthalmic, maillary and mandibular
Abducens abducts the eye controls lateral rectus muscle Extraocular muscles-adduct..move medially; abduct...move laterally; elevate depress. rotate, intorsion and extorsion 6 directions
lateral rectus CN VI; Superior Oblique CN IV All else CN III Subarachnoid space extends to back of eye
Ciliary Ganglion: parasympathetic. 1)ciliary muscles 2) sphincter. innervated by CN III Abducens nerve damage lateral stylabismus (cross-eyed) dut to damage to lateral erectus
with Trochear damage--inability to turn eye down and out..superior oblique Lateral strabismus oculomotor damage to medial rectus
LR lateral VI/SO down and lateral IV/ MR medial III, SR up and medial III, IR down and medially III, IO up and laterally III, SO down and laterally III. VII-Facial; Motor to muscles of facial expression; control of lacrimal and salivary glands. sensory taste anterior 2/3 otor to facial expression
VII Facial leaves posterior cranial fossa via Internal Auditory Meatus---enters facial canal Greater Petrosal N (Facial VII) forms Nerve of Pterygoid Canal
Muscles of facial expression--1. Temporal - auricular 2. Zygomatic - muscles of the zygomatic arch . 3. Buccal - muscles in the cheek and above the mouth. 4. Mandibular - muscles in the region of the mandible. 5. Cervical - the platysma muscle Pathway to lacrimal gland: Greater Petrosal N. to Pterygopalatine Ganglion to Lacrimal
Lacrimal Gland-Post-ganglionic Parasymp. join Zygomatic to V1 Lacrimal Pathway to mucus gland of nose, palate: Greater Petrosal N. to Pterygopalatine Ganglion to Musus Glands Nose , Palate via greater and lesser palatine N.
Pathway to submandibular, sublingual , salviary glands, taste fibers to ant 2/3 tongue. Chorda typani around lingual nerve submandibular ganglion to tongue and glands Greater Petrosal-mucus glands of nose and plalate form N. of Pterygoid Canal, synapse in Pterygoid Palatine Ganglion
Chorda Tympani-Submandibular and sublingual glands, tast fibers to ant 2.3 of tongue Vestibulocochlear VIII-Just above spinal cord at the pons. ends in Cochlea and semicircular Canals
Int. aud. meatus Glossophryngeal after ear nuclei at level of medulla and parotid gland.
Created by: Yoshinao
 

 



Voices

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:
Retries:
restart all cards