Locations
True or false: the genu of the corpus callosum is located rostral to the rostrum
True
Where is the primary visual cortex located?
Banks of Calcarine
What cell types MOST directly contributes to the blood brain barrier?
Astrocytes
What is the function of CN X
Sensory: pharynx, external auditory canal, aortic arch and chemoreceptors and baroreceptors
Motor: voice box and pharynx and larynx
Parasympathetic: digestion, lungs and heart
What arteries stem off of the basilar artery?
pontine
What is the insula tucked between?
Hint: lobes
It is tucked in beneath the frontal, parietal, and temporal lobes.
What are the PRIMARY contributors to white matter tracts?
Axons
What do Ependymal cells form a lining for?
Ventricles
The solitary nucleus receives projections from what cranial nerves?
Facial nerve, glossopharyngeal, vagus
The basilar artery overlies which central nervous system structure?
Pons
Where is the 3rd ventricle located?
thalamus, hypothalamus, retina; diencephalon
What are the 3 subparts of the mesencephalon (midbrain)?
Cerebral peduncles
Midbrain tectum
Midbrain tegmentum
True or false: Schwann cells are found in the cerebrum.
false
What cranial nerves have parasympathetic (general visceral efferent) functions?
Hint: 4 of them
Oculomotor, facial, glossopharyngeal and vagus
Anterior Spinal Artery
Where is the Wernekies area located?
left, posterior portion of the superior temporal gyrus
What is Brodmans area #28?
Need function, functional area and location
Primary olfactory cortex; limbic association area
Smell, emotions
Parahippocampal gyrus
Someone is diagnosed with MS. What describes the cellular change producing her disease?
The disease reflects primarily an impairment in oligodendrocytes forming the myelin sheath.
What cranial nerve is the Inferior salivatory nucleus correlated with?
CN IX (parotid gland)
What is the blood supply for the supratentorial and infratentorial structures?
Supra: internal carotid artery
Infra: vertebral arteries
Where do each of the cerebellar peduncles connect to? And what type of fibers do they carry?
The superior cerebellar peduncle connects to midbrain and carries afferent and efferent fibers. The middle cerebellar peduncle connects to pons and carries only afferent fibers.
The inferior cerebellar peduncle connects to medulla oblongata and carries afferent and efferent fibers.
They connect the cerebellum to the brain stem.
Explain what is meant by the term “watershed infarct.”
“Border zone infarcts”
Ischemic brain lesions occurring in the areas between the territories of two major arteries
Often the result of global hypoperfusion (e.g. severe blood loss, cardiac arrest)
What cell types plays a phagocytic role in clearing blood and tissue debris?
Microglia
Name the sensory, motor and parasympathetic functions for the Vagus nerve
Sensory: pharynx, external auditory canal, aortic arch and chemoreceptors and baroreceptors
Motor: voice box and pharynx and larynx
Parasympathetic: digestion, lungs and heart
What is the blood supply for the dura and arachnoid mater?
middle meningeal artery (branch of the maxillary artery)
Arachnoid is avascular!