The largest and most complex organ of the nervous system Oversees many aspects of physiology such as...

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THE BRAIN

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Transcript of The largest and most complex organ of the nervous system Oversees many aspects of physiology such as...

Page 1: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

THE BRAIN

Page 2: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• The largest and most complex organ of the nervous system

• Oversees many aspects of physiology such as – Sensation and

perception– Movement – Thinking

THE BRAIN

Page 3: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Thin membrane located between the bone and brain/spinal cord

• Protection

MENINGES

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Page 4: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• 3 layers– Dura mater– Arachnoid mater– Pia mater

MENINGES

Page 5: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Outermost layer• Tough, white connective tissue, blood vessels

and nerves• Continues into vertebral canal as it surrounds

the spinal cord

DURA MATER

Page 6: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Middle layer• Thin, weblike membrane that does not have

blood vessels• Cerebrospinal fluid (CSF) located between

arachnoid mater and pia mater

ARACHNOID MATER

Page 7: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Innermost layer• Many blood vessels• Attached to surface of brain

PIA MATER

Page 8: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Cerebrum• Diencephelon• Cerebellum• Brainstem

PARTS OF THE BRAIN

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Page 9: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Largest part of brain• Divided into 2 hemispheres– A broad flat bundle of axons connects them, called

the corpus callosum– A layer of the dura mater separates the

hemispheres

CEREBRUM

Page 10: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• The ridges are called gyri• The grooves are called sulci– Deep sulci are called fissures

• Outer layer of cerebrum is gray matter called the cerebral cortex

• Inner layer of cerebrum is white matter

CEREBRUM

Page 11: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Frontal lobe• Parietal lobe• Temporal lobe• Occipital lobe

LOBES OF CEREBRUM

Page 12: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Higher intellectual processes for concentrating, planning, complex problem solving, and judging consequences of behavior

• Movements of voluntary skeletal muscles

FRONTAL LOBE

Page 13: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Sensations of temperature, touch, pressure, and pain

• Understanding speech and using words to express thoughts and feelings

PARIETAL LOBE

Page 14: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Hearing• Interpret sensory experiences and remember

visual scenes, music, and other complex sensory patterns

TEMPORAL LOBE

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Page 15: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Vision• Combine visual images with other sensory

experiences

OCCIPITAL LOBE

Page 16: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Region of the brain that gives rise to posterior forebrain structures

• Associated with the Limbic System – controls emotion• Thalamus• Hypothalamus• Pituitary gland• Pineal gland• Amygdala• Hippocampus

DIENCEPHALON

Page 17: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Relay sensory and motor information to cerebral cortex

• Regulates consciousness, sleep and alertness

THALAMUS

Page 18: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Link between nervous system and endocrine system

• Releases hormones that eventually control body temperature, hunger, parenting behaviors, thirst, sleep, and circadian rhythms

HYPOTHALAMUS

Page 19: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Endocrine gland stimulated by hypothalamus that secretes hormones that regulate homeostasis

PITUITARY GLAND

Page 20: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Secretes the hormone melatonin, which regulates sleep/wake cycles and mood

PINEAL GLAND

Page 21: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Role in memory, decision-making, and emotional reactions

AMYGDALA

Page 22: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Involves consolidation of short-term memory into long term memory and spatial navigation

HIPPOCAMPUS

Page 23: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• A large mass of tissue inferior to cerebrum, posterior to brainstem

• Communicates with other brain structures by means of cerebellar peduncles.

• Integrates sensory info such as position of body parts, coordinates muscle activities, maintains posture

CEREBELLUM

Page 24: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Connects brain to spinal cord• Midbrain• Pons• Medulla Oblongata• Reticular Formation

BRAINSTEM

Page 25: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Joins spinal cord with higher regions of the brain

• Reflex centers that move eyes and head, maintains posture

MIDBRAIN

Page 26: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• A bulge on the underside of the brainstem• Relays impulses between medulla oblongata

and cerebrum; regulates breathing

PONS

Page 27: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Enlarged continuation of spinal cord• Cardiac, vasomotor, and respiratory control

centers, nonvital reflex control centers

MEDULLA OBLONGATA

Page 28: The largest and most complex organ of the nervous system Oversees many aspects of physiology such as – Sensation and perception – Movement – Thinking.

• Network of fibers throughout brain stem

• Regulates sleep/wake cycles, filters sensory impulses

RETICULAR FORMATION


Sensation and Perception Modules 5 & 6. What’s the difference?? Sensation: the process by which sensory systems and the nervous system receive stimuli.

Sensation and Perception Modules 5 & 6. What’s the difference?? Sensation: the process by which sensory systems and the nervous system receive stimuli.

Central Nervous System examination. NEUROLOGICAL EXAM MENTAL STATUS CRANIAL NERVES MOTOR EXAM – STRENGTH – GAIT – CEREBELLAR REFLEXES SENSATION.

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Sensation & Perception Chapters 5&6 Sensation zSensation ya process by which our sensory receptors and nervous system receive and represent stimulus.

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Central Nervous System examination. MENTAL STATUS CRANIAL NERVES MOTOR EXAM STRENGTH GAIT CEREBELLAR REFLEXES SENSATION.

Central Nervous System examination. MENTAL STATUS CRANIAL NERVES MOTOR EXAM STRENGTH GAIT CEREBELLAR REFLEXES SENSATION.

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Chapter 5 Sensation. The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment. sensation.

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Sensation and Perception - Pearson · 3 Sensation and Perception ... Vision: How the Nervous ... psychology will help you understand how we assemble a series of tones into

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Nervous systems show diverse Nervous systemsuser System Evolution, Sensation and Behavior in Invertebrates • Evolution of the central nervous system • Sensory perception • Behavior

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Sensation and Perception. Sensation- How are sensory receptors and nervous system receive information (stimulus) from the environment Perception-

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Sensation and Perception Chapter 3. Chapter 3 Learning Objective Menu LO 3.1 Sensation and how it enters central nervous system LO 3.2 How some sensations.

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