Qtr 3 Neuroanatomy exam 1
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Qtr 3 Neuroanatomy exam 1
What is the name of the floor of the 4th ventricle?
What divides the pontine (upper) and medullar (lower) halves of the rhomboid fossa?
What divides the rhomboid fossa into right and left halves?
Dorsal median sulcus
What divides the alar and basal plates?
What lies between plate lies between the dorsal median sulcus and sulcus limitans?
Basal plate (alar is more lateral)
How many inches long is the spinal cord?
Between what levels is the the cervical and lumbar enlargments?
Lumbar L4 - S3
What levels do the splanic nerves exit?
T5 - T12
What pathology is characterized by Ptosis, Anhydrosis, Miosis?
PAM IS HORNEY
What three layers are formed during gastrulation?
Were is the notocord formed?
What is secreted by the notocord and what is formed?
The notocord secretes retinoic acid and Sonic hedgehog. They are secreted to the ectoderm to form the neural plate-->Neural groove--> Neural folds--> Neural crest cells (in that order)
What foramen does CSF pass through from the lateral to the 3rd ventricles?
Interventricular foramina of monroe
How does CSF exit the 4th ventricle?
median magendie foramina
two lateral luschka foramina
what cistern connects the superior cistern with the interpeduncular cistern
what disease is caused by the tonsils of the cerebellum herniating into the foramen magnum resulting in non-communicating hydrocephalus?
what disease may cause destruction of the arachnoid granulations?
What gland secretes mucus in the in which the cilia of the olfactory receptor cells are suspended?
What cells are found in the olfactory bulb?
What part of the thalamus do olfactory axons synapse?
dorsal medial thalamic nuclei
what do cranial nerves III, IV, and VI all pass through?
lateral wall of cavernous sinus
Where does the oculomotor nerve exit the brain stem?
Junction between midbrain and cerebral peduncle
what runs through the ambiens cistern with the trochlear nerve???
posterior cerebral artery
Superior cerebellar artery
Which ocular nerve does not pass through the tendinous ring?
where is the nucleus of the abducens nerve found?
pontine part of the floor of the 4th ventricle
Where does the abducens nerve exit the brain stem?
middle of the ponto-medullary junction
what nerve(s) may be damaged if a patient presents with diplopia?
CN III, IV, VI
What nerve is most likely damaged when a patient presents with ptosis?
what foramen does the maxillary branch of the trigeminal nerve pass through?
What foramen does the mandibular division exit the skull through?
(Mandible looks like a valley)
where does the ophthalmic division of the trigeminal nerve exit the skull?
superior orbital fissure
what division of the trigeminal nerve carries efferent motor?
What glands does the facial nerve transmit parasympathetic fibers too?
Where is the nuclei for the parasympathetic fibers of CNVII?
Superior Salivary nucleus
What nerves are connected by the chorda tympani?
Lingual nerve and facial nerve
Where is the primary auditory cortex located?
Area 41, 42 (middle portion of superior temporal gyrus)
What nerve cranial nerve synapses in the otic ganglion??
CN IX glossopharyngeal nerve
What gland does the otic ganglion communicate with?
What is the only muscle supplied by CNIX?
What is the only muscle of the tongue not supplied by the hypoglossal nerve and what nerve supplies it?
palatoglossus (pharyngeal plexus of vagus)
What layers of the lateral geniculate body receive info from contralateral retinas and ipsilateral retinas respectively?
What forms the floor of the third ventricle?
What part of the hypothalamus secretes ADH, oxytocin, and corticotropin-releasing hormone?
What disease results from degeneration of the caudate nucleus?
What CN innervates the lacrimal gland?
What are the branches of the opthalmic division of the trigeminal nerve?
- Communication (para pterygopalatine ganglion
- short and long ciliary
What nerve is the ciliary ganglion attached to?
Long and short ciliary nerve
Opthalmic division of trigeminal
What is the function of the otic ganglion