Regions of the Brain

· Cerebral hemispheres

· Diencephalon

· Brain stem

· Cerebellum

Ventricles and Location of the Cerebrospinal Fluid

Diencephalon• Thalamus• Hypothalamus• Epithalamus

Sensory gate way

Thalamus

Hypothalamus

Thyroid Adrenal Gonads

FUNCTIONS

Visceral EmotionsAutonomic Endocrine

Parasympathetic Sympathetic

Hypothalamus

· Houses the pineal body (an endocrine gland)

· Circadian rhythms

Epithalamus

Basal ganglia

Basal ganglia

• Caudate N.• putamen• globus pallidus• Subthalamic N.• substantia nigra

putamen: Latin = shell of seedpallidus: Latin = pale

MedialLateral

BG functions & pathology

• motor control • Motivation• eye movements

• Cerebral palsy• Huntington's disease • Obsessive-compulsive di

sorder• Parkinson's disease • Stuttering

Cerebrum – Cerebral Hemisphere

1. Cerebral Cortex

2. Cerebral White Matter

3. Basal Ganglia

Telencephalic structure –lateral ventricles

Lobes of the Cerebral Cortex (lateral surface)

1. Frontal lobe

2. Parietal lobe

3. Temporal Lobe

4. Occipital lobe

Lobes of the Cerebral Cortex (medial surface)

1. Frontal lobe

2. Parietal lobe

3. Temporal Lobe

4. Occipital lobe

5. Limbic lobe

Lobes of the Cerebral Cortex (basal surface)

1. Frontal lobe

2. Parietal lobe

3. Temporal Lobe

4. Occipital lobe

5. Limbic lobe

Specialized Area of the Cerebrum

Motor Homunculus

Sensory Homunculus

Speech : Wernicke's area and Broca's area

Limbic lobe: Memory, Emotions

Cerebral White Matter

• Projection fiber

• Commissural fiber

Corpus callosum • Association fiber