π Central Nervous System
π
Central Nervous System
10-12 Billion Neurons
β¬οΈ
π§
Brain
Higher Functions
π¦΄
Spinal Cord
Reflexes/Relay
ποΈ Three Brain Divisions
π
FOREBRAIN
Prosencephalon
π
MIDBRAIN
Mesencephalon
π
HINDBRAIN
Rhombencephalon
π FOREBRAIN Structures
β¬οΈ
π§
Telencephalon
Cerebrum
π―
Diencephalon
Deep Brain
β¬οΈ
π
Cerebral Cortex
6 Layers
π
Limbic System
Emotions
βοΈ
Basal Ganglia
Motor
π‘
Thalamus
Relay Station
π₯
Hypothalamus
Survival
π§© Cerebral Cortex Lobes
π
Frontal
Motor/Planning
π
Parietal
Sensory
β°
Temporal
Auditory
ποΈ
Occipital
Visual
π Limbic System (Emotional Brain)
π
Hippocampus
Memory
πΊ
Amygdala
Fear/Rage
π
Cingulate
Pain/Emotion
π
Septum
Reward
π§
Olfactory
Smell
π MIDBRAIN Structures
β¬οΈ
π―
Tectum
Roof
βοΈ
Tegmentum
Floor
β¬οΈ
ποΈ
Superior Colliculi
Visual
π
Inferior Colliculi
Auditory
β«
Substantia Nigra
Dopamine
π΄
Red Nucleus
Motor
π£
PAG
Pain
π HINDBRAIN Structures
β¬οΈ
π
Metencephalon
π
Myelencephalon
β¬οΈ
π
Cerebellum
Balance/Coord
π
Pons
Bridge/Sleep
π
Medulla
Vital Functions
β‘
RAS
Arousal
π‘οΈ Brain Protection Layers
β¬οΈ
β¬οΈ
β¬οΈ
β¬οΈ
π¬ Cell Types
π§
Neurons
Signal
β
Astrocytes
Support
π§¬
Oligodendrocytes
Myelin
π¬
Microglia
Immune