1.
Describe the organization of the cerebellum: -organized into an inner core of white matter and an outer core of gray matter
-note that there is no inner core of gray matter as it exists in other parts of the CNS
2.
Once inside the mandible, where is the mandibular nerve transmitted to?: -beneath the alveolar processes
3.
What are gyri?: -ridge/mountains of the cerebral cortex
4.
What are sulci?: -valleys of the cerebral cortex
5.
What are the important components of the olfactory nerve?: -olfactory tracts and olfactory bulbs
6.
What are the important components of the optic nerve?: -the optic chiasm
-the optic tracts
7.
What are the optic tracts?: -the continuation of the optic nerves posterior to their cross-over point at the optic chiasm
8.
What are the right and left cerebral hemispheres divided by?: -the longitudinal fissure
9.
What are the three divisions of the trigeminal nerve, along with their names: -CN V1 = opthalmic nerve
-CN V2 = maxillary nerve
-CN V3 = mandibular nerve
10.
What are the three parts of the brain stem?: -midbrain
-pons
-medulla oblongata
11.
What are the two cerebellar hemispheres connected by?: -a worm-shaped thickening called the vermis
12.
What are the two components of the diencephalon?: -the thalamus
-the hypothalamus
13.
What are the two features found throughout the cerebrum?: -gyri, singular gyrus
-sulci, singular sulcus
14.
What does each hemisphere's cerebral cortex consist of?: -frontal lobe
-parietal lobe
-temporal lobe
-occipital lobe
-insula
15.
What does the cerebellum consist of?: -two cereballar hemispheres
16.
What does the facial nerve supply? Where does it exit the cranium?: -it supplies the muscles of the face
-exits at the point of junction between the pons and the medulla oblongata
17.
What does the mandibular nerve supply?: -the jaw, including the chewing muscles and the lower teeth
18.
What does the maxillary nerve supply?: -parts of the face and the upper teeth
19.
What does the opthalmic nerve supply?: -the eyes
20.
What happens there?: -becomes connected to each tooth, ie ROOT CANAL!
21.
What important nerves can be found on the underside of the brain?: -CN I
-CN II
-CN V
-CN VII
-CN X
22.
What is the additional, outer layer of gray matter in the brain called?: -cerebral cortex
23.
What is the caudal end of the human brain called?: -the brainstem
24.
What is the cerebellar gray matter referred to as?: -cfolia
25.
What is the cerebral cortex divided into?: -the right and left cerebral hemispheres
26.
What is the falx cerebri?: -a projection of dura mater
27.
What is the mandibular nerve called once it exits the mental foramina?: -the mental nerve
28.
What is the name of CN I?: -olfactory nerve
29.
What is the name of CN II?: -optic nerve
30.
What is the name of CN V?: -trigeminal nerve
31.
What is the name of CN VII?: -the facial nerve
32.
What is the name of CN X?: -the vagus nerve
33.
What is the nerve called when it is within the alveolar processes?: -alveolar nerve
34.
What is the optic chiasm?: -the cross-over point of the the two optic nerves
35.
What is the point of exit of the maxillary nerve?: -the foramen rotundum in the sphenoid bone
36.
What is the role of the corpus callosum?: -it allows the left and right hemispheres of the brain to communicate with each other
37.
What is the role of the falx cerebri?: -stabilizes the two hemispheres
38.
What is the tentorium cerebelli?: -a dura mater partition
39.
What is the white matter of the cerebellum called?: -arbor vitae
40.
What is three distinct pockets is the subcortical gray matter divided into?: -the basal nuclei
-the diencephalon
-the limbic system
41.
What lies caudally to the cerebral cortex?: -the cerebellum
42.
What lies within the longitudinal hemisphere?: -the falx cerebri
43.
What region connects the two hemispheres together?: -corpus callosum
44.
What separates the cerebrum rostrally from the cerebellum caudally?: -tentorium cerebelli
45.
Where does CN V exit from?: -the pons
46.
Where does it exit the cranium? What does it leave the cranial cavity through?: -it exits from the medulla oblongata
-leaves the cranial cavity through the jugular foramina
47.
Where does the mandibular nerve exit the mandible?: -through the mental foramina
48.
Where is the opthalmic nerve transmitted? Through what?: -it is transmitted into the orbital cavities through the superior orbital fissures
49.
Why is the vagus nerve significant?: -because it is the only cranial nerve to leave the head and neck
-supplies the internal organs of the viscera
