Brain Flashcards
Learn the Brain
Prosencephalon
Forebrain
Mesencephalon
Midbrain
Rhombencephalon
Hindbrain
2 divisions of Prosencephalon
Diencephalon Telencephalon
2 divisions of Rhombencephalon
Metencephalon Myelencephalon
Division of Mesencephalon
None
Telencephalon is
Cerebrum
Diencephalon is
Thalamus
Mesencephalon is
Midbrain
Metencephalon is
Ponw Cerebellum
Myelencephaon is
Medulla
Neural Tube Differentiates into
brain and spinal cord
Neural Crest derivatives are
- Sensory ganglia of cranial and spinal nervesl 2. neurolemmal sheath of peripheral nerves 3. meninges 4. pigment cells of retina 5. cells of adrenal medulla
4 septas of the meningeal layer of the Dura Mater
- falx cerebri 2. tentorium cerebelli 3. falx cerebelli . diaphragma sella
Siickle shaped fold of dura matrr thst lies in the midline between the teo cerebral hemisphere. Its narrow anterior end is attached to the frontal crest and crista galli
Falx Cerebri
Crescent shaped fold of dura mater that roofs over the posterior fosda; covers the upper surface of the cerebellum and supportd the occipital lobes of the cerebral hemisphere
Tentorium cerebelli
Small sickle shaped fold of dura mater attached to the internal occipital crest and projects between the two cerebellar hemispheres
Falx cerebelli
small circular fold of dura mater thst forms the roof of the sella turcica
diaphragma sella
Sensory innervation of the dura mater
Trigeminal Nerve and first 3 cervical nerves
Primmary Motor Area is
Precentral Gyrus B.A. 4
Primary Somesthetic area
Post central gyrus B.A. 3,1,2
Primary visual area is
B.A. 17
Primary Auditory area is
B.A. 41, 42
Broca area is
Inferior frontal gyrus B.A. 44, 45 motor aphasia
Wernicke’s area is
superior temporal gyrus B.A. 22 sensory aphasia
Primary Auditory Cortex is
Heschl Gyrus
3 divisions of the cerebellum
- anterior lobe 2. posterior lobe 3. floculondular lobe
Anterior Lobe of Cerebellum Function
Paleocerebellum/Spinocerebellum - coordination of LIMB movement; regulation of muscle tone
Posterior Lobe of cerebellum function is
Neocerebellum/Cerebrocerebellum - coordination of voluntary movrments
Floculonodular Lobe of Cerebrllum function is
Arhicerebellum/Vestibulocerebellum - associated with equilibrium
Loss or Slowness of a voluntary movement
Bradykinesia
Hesitancy in starting a movement
Akinesia
Involuntary Movements
Dyskinesia