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Embryology and Regions
Basic Anatomy
Basic Anatomy - 2
Cranial Nerves
Function
100
What eventually makes up the telencephalon, cerebrum and diencephalon?
Prosencephalon
100
What is the largest part of the brain? Second largest?
1. Cerebrum 2. Cerebellum
100
What are the three extensions of the dura mater?
Falx cerebri, falx cerebelli, tentorium cerebelli
100
What is Cranial Nerve I - type and Identification
Sensory- smell, "Olfactory Nerve"
100
What is the function of the medulla oblongata?
Contains relay stations and reflex centers (olivary nuclei and cardiovascular and respiratory rhythmicity centers). Pyramids (common site of decussation) Centers for vomiting, swallowing, sneezing, hiccupping, coughing
200
What is the name of the three swellings the brain forms from?
1. Prosencephalon 2. Mesencephalon 3. Rhombencephalon
200
What divides the brain into left and right sides?
Longitudinal Fissure
200
Where is the CSF located and what is its function?
Circulates through ventricles, spinal cord and subarachnoid space. Functions to absorb shock and protect the brain and spinal cord.
200
What is Cranial Nerve III - type and function
Motor - Extrinsic eye muscles and eye lid, "Oculomotor"
200
Pons Function/Centers
Pneumotaxic Center – adjusts rate of rhythmicity centers in medulla oblongata Apneustic Center - adjusts depth of rhythmicity centers in medulla oblongata Relay Centers – sensory & motor to the cerebellum Ascending, descending and transverse tracts
300
What eventually makes up the cerebellum, pons and the medulla oblongata?
Rhombencephalon
300
What does the brain stem consist of?
Medulla Oblongata, Pons, Midbrain
300
What does the falx cerebri separate?
Two cerebral hemispheres.
300
Cranial Nerve XI - type and function
Motor - coordinate head movements, "Accessory Nerve"
300
Cerebellum Function
The anterior and posterior lobes control subconscious aspects of skeletal movement. The flocculonodular lobe on the inferior side contributes to equilibrium and balance
400
The cerebrum makes up the ____ which functions in ______.
Forebrain, higher thinking
400
What are the cranial meninges?
Folds of dura mater to help stabilize the position of the brain
400
Define Choroid Plexuses.
Networks of capillaries in the walls of the ventricles.
400
Cranial Nerve IX - type and function
Mixed - release of saliva, "Glossopharyngeal"
400
Hypothalamus function
Production of hormones, regulation of emotional and behavioral patters, eating and drinking, body temperature, and circadian rhythms
500
The _____, ______, and ______ make up the hindbrain and is used for _______ processes.
Pons, Medulla Oblongata, Cerebellum; Reptillian
500
What does the Blood Brain Barrier do?
Protects the brain from harmful substances - the brain receives 20% of the total blood supply.
500
How is CSF produced?
Plasma is drawn from the choroid plexuses through ependymal cells into the ventricles to produce CSF.
500
Cranial Nerve V- type and function
Mixed - touch, pain and temp. sensations, "Trigeminal Nerve" Largest
500
Cerebrum Function
"Seat of Intelligence" 4 lobes Basal Nuclei for learning, memory, reward/delayed gratification, caution, addiction, muscle memory, coordination, vision, audition, etc.