ANAT 215 Lecture 21: ANAT 215 week 7 lecture 3
28 Apr 2018
School
Department
Course
Professor
ANAT 215 week 7 lecture 3
Brain
Cerebrum
Telencephalon
Cerebral hemispheres
Longitudinal cerebral fissure: divides telencephalon
Cerebral cortex: gray matter made of neuronal cell bodies, higher brain function,
divided into lobes
Frontal lobe: motor function, problem solving, memory, language, judgement,
impulse control, social + sexual behavior
Parietal lobe: processes sensory info, interprets visual info, process language
Occipital: primary visual cortex
Temporal: auditory perception
Insula: process convergent info to prod emotionally relevant context
Gyri: postcentral= motor, precentral= sensory
Sulci: central sulcus, parieto-occipital sulcus, lateral sulcus
Basal ganglia: deep gray matter, caudate + lentiform (globus palladus+ putamen)
aid in speech, mvmt and posture
Corpus callosum: white matter that connects brain hemispheres
Internal capsule: white matter that ties cortex to NS
Diencephalon
(enclose 3rd
ventricle)
Thalamus: sensory relay to cortex, coordinates sleep, consciousness, sensory
interpretation
Hypothalamus: pituitary gland, links NS to endocrine
Epithalamus: pineal gland releases melatonin
Brainstem
(vital
resource
center)
Midbrain
Cerebral peduncles: bundles of fibers
Superior colliculi: visual reflex + synapse, co-ordinate head and eye mvmt
Inferior colliculi: auditory reflex ß
Pons
4th ventricle: contains choroid plexus to prod CSF
Transverse fiber tracts: cerebellar peduncles connected with these to cerebellum
Medulla
oblongata
Vital reflex center; cardiovascular, respiratory center, controls vomit, hiccup,
swallowing, sneezing (RESP + CIRC)
Olives: helps cerebellum
Pyramids: contains motor fibers
Cerebellu
m
(smooths
out motor
mvmt)
Vermis
Fossa for spinal nerve
Cerebellar
peduncles
Input+ output fibers, balance + posture maintenance
Ventricles
Anterior horn
In frontal lobe
Inferior horn
In temp lobe
Posterior horn
In occipital
Interventricula
r foramen
(Munro) connects anterior horn to 3rd ventricle
Cerebral
aqueduct
Connects 3rd and 4th ventricle which contain choroid plexuses
Central canal
Connects 4th ventricle to SC
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Document Summary
Cerebral cortex: gray matter made of neuronal cell bodies, higher brain function, divided into lobes. Frontal lobe: motor function, problem solving, memory, language, judgement, impulse control, social + sexual behavior. Parietal lobe: processes sensory info, interprets visual info, process language. Insula: process convergent info to prod emotionally relevant context. Basal ganglia: deep gray matter, caudate + lentiform (globus palladus+ putamen) aid in speech, mvmt and posture. Corpus callosum: white matter that connects brain hemispheres. Internal capsule: white matter that ties cortex to ns. Thalamus: sensory relay to cortex, coordinates sleep, consciousness, sensory interpretation. Superior colliculi: visual reflex + synapse, co-ordinate head and eye mvmt. 4th ventricle: contains choroid plexus to prod csf. Transverse fiber tracts: cerebellar peduncles connected with these to cerebellum. Vital reflex center; cardiovascular, respiratory center, controls vomit, hiccup, swallowing, sneezing (resp + circ) In occipital (munro) connects anterior horn to 3rd ventricle. Connects 3rd and 4th ventricle which contain choroid plexuses.
