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REGIONS OF THE BRAIN THE CEREBRUM FUNCTIONS: Controls intelligence & conscious thought, reasoning, judgment Interprets senses Controls complex muscle.

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Presentation on theme: "REGIONS OF THE BRAIN THE CEREBRUM FUNCTIONS: Controls intelligence & conscious thought, reasoning, judgment Interprets senses Controls complex muscle."— Presentation transcript:

1

2 REGIONS OF THE BRAIN

3 THE CEREBRUM FUNCTIONS: Controls intelligence & conscious thought, reasoning, judgment Interprets senses Controls complex muscle patterns Memory storage/retrieval

4 THE CEREBRUM Structures: Paired hemispheres Gyri = outer elevated ridges Sulci = shallow depressions between

5 THE CEREBRUM Structures cont.: Longitudinal fissure = separates R & L hemispheres Corpus callosum = thick band of nerve fibers connecting R & L & allows communication

6 THE CEREBRUM: Right vs Left LEFT: Speech /language Reading/writing Analytical tasks – math! Logic/reason RIGHT: Musical/Artistic Emotional expression Visual – pictures Pattern recognition

7 LOBES OF THE CEREBRUM 1. Frontal Primary motor area Frontal association area = judgment & reason Taste area 2. Parietal Primary sensory area – touch, temp, pressure & pain 3. Temporal Auditory & Olfactory area 4. Occipital Visual Central sulcusLateral sulcus

8 THE CEREBRUM: An Overview Let Us Look Inside the Cerebrum…

9 THE DIENCEPHALON

10 Thalamus All sensory info (except smell) is relayed through & then sent to appropriate areas of brain for response

11 THE DIENCEPHALON Hypothalamus Primary link between NS & endocrine – pituitary releases hormones Regulates moods, thirst, appetite, waking vs sleep Regulates body temp & water balance Reg. & coordinates autonomic – digestion & urination

12 THE BRAIN STEM 1. Midbrain: Maintains alertness 2. Pons: Regulates respiration rate All information to and from our body passes through the brain stem on the way to or from the brain. Like the frontal and temporal lobes, the brain stem is located in an area near bony protrusions making it vulnerable to damage during trauma. 3. Medulla Oblongata: Connects brain to spinal cord Regulates breathing rhythm, rate, blood flow Reflexes: vomiting, sneezing, hiccupping & swallowing

13 THE CEREBELLUM Coordinates subconscious skeletal muscle – maintains balance & posture Ex: moving an object 2 nd Largest Region Damage – trauma, stroke or drugs (alcohol) = ataxia

14 THE LIMBIC SYSTEM A functional system not anatomical – parts of cerebrum, hypothalamus & brain stem Emotion centers, memory, links conscious thoughts to unconscious functions

15 WRAPPING UP THE BRAIN ANOTHER LOOK INSIDE


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