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Anatomy and Functions of the Brain: Brainstem, Cerebellum, Diencephalons, and Cerebrum, Exercises of Anatomy

The Tamil Nadu Dr. M.G.R. Medical UniversityAnatomy

An overview of the human brain, focusing on its main components - the brainstem, cerebellum, diencephalons, and cerebrum. It discusses the functions and structures of each part, including the medulla oblongata, pons, midbrain, cerebellum, thalamus, hypothalamus, and cerebrum. It also covers the roles of the cerebrospinal fluid, the functions of the brainstem in sensory and motor functions, the role of the cerebellum in coordinating complex motor sequences, and the functions of the diencephalons and cerebrum in emotional and behavioral patterns.

Typology: Exercises

2011/2012

Uploaded on 12/24/2012

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shaila_210h 🇮🇳

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Brain (Chapter 19)
Principle parts
Brainstem (medulla oblongata, pons, midbrain)
Cerebellum (little brain)
Diencephalons (thalamus & hypothalamus)
Cerebrum (rt & lt hemispheres)
Cerebrospinal Fluid
Functions
Mechanical protection
Chemical protection
Circulation
Formed by:
Ependymal cells of the Choroid Plexuses
Flow from the choroids plexuses to the arachnoid villa
Circumventricular organs
Brain Stem
Medulla oblongata
Ascending sensory & descending motor tracts
Cross over at decussation of pyramids
Medullary rhythmicity area (basic rhythm of breathing)
Complex reflexive behaviors
Pons
Reticular formation (RAS)
Cerebellum
Coordinates complex motor sequences
Hypothalamus
ANS
Pituitary gland
Emotional & behavioral patterns
Eating and drinking
Body temperature
Diurnal rhythms
Cerebrum
White matter
Association fibers
Commissural fibers
Projection fibers
Gray matter – Cortex
Sulci
Gyri
Lobes
Functional Areas of the cortex
Primary somatosensory cortex (Post-central gyrus)
Primary motor cortex
Primary visual cortex
Primary auditory area
Auditory Association area (Wernicke’s area) usually on the left
Motor Speech area (Broca’s area) usually on the left side
Brain Lateralization
Split Brains
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Brain (Chapter 19) Principle parts Brainstem (medulla oblongata, pons, midbrain) Cerebellum (little brain) Diencephalons (thalamus & hypothalamus) Cerebrum (rt & lt hemispheres) Cerebrospinal Fluid Functions Mechanical protection Chemical protection Circulation Formed by: Ependymal cells of the Choroid Plexuses Flow from the choroids plexuses to the arachnoid villa Circumventricular organs Brain Stem Medulla oblongata Ascending sensory & descending motor tracts Cross over at decussation of pyramids Medullary rhythmicity area (basic rhythm of breathing) Complex reflexive behaviors Pons Reticular formation (RAS) Cerebellum Coordinates complex motor sequences Hypothalamus ANS Pituitary gland Emotional & behavioral patterns Eating and drinking Body temperature Diurnal rhythms Cerebrum White matter Association fibers Commissural fibers Projection fibers Gray matter – Cortex Sulci Gyri Lobes Functional Areas of the cortex Primary somatosensory cortex (Post-central gyrus) Primary motor cortex Primary visual cortex Primary auditory area Auditory Association area (Wernicke’s area) usually on the left Motor Speech area (Broca’s area) usually on the left side Brain Lateralization Split Brains

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