Big Picture

1
Big Picture

• Central Nervous System (CNS)
• Brain
• Spinal Cord

• Peripheral Nervous System
• Somatic
• Autonomic
• Sympathetic
• Parasympathetic

2
The Brain

• 3 primary divisions
• Forebrain
• cortex (folded stuff)
• limbic system (stuff around brain stem)
• Midbrain (top of brainstem)
• Hindbrain (bottom of brainstem cerebellum)

3
ANATOMICAL DIRECTIONS
4
(No Transcript)
5
The Spinal Cord
6
SPINAL CORD
7
SPINAL CORD
8
Facilitates energy expenditure
9
Facilitates energy conservation
10
Major Neuroanatomical Divisions of the Brain
Fish Brain
Hindbrain pons, medulla, cerebellum Midbrain
tectum, superior/inferior colliculus, substantia
nigra Forebrain thalamus, hypothalamus,
cerebral cortex, hippocampus, basal ganglia
11
The Hindbrain, rhombencephalon
The Human Brainstem

• Medulla
• just above the spinal cord
• Pons
• lies anterior and ventral to the
• medulla
• Cerebellum
• lies dorsal to the medulla

12
The Midbrain, mesencephalon
The Human Brainstem

• Tectum
• roof of the midbrain
• Superior and Inferior Colliculi
• Substantia Nigra

13
CRANIAL NERVES
14
The Forebrain Limbic System

• several interlinked structures comprise the
  limbic system

15
The Forebrain Thalamus

• sends the output to the cerebral cortex

16
The Forebrain Hypothalamus

17
The Forebrain Basal Ganglia

• three major structures caudate nucleus,
  putamen, globus pallidus
• highly conserved across evolution (amphibians -
  mammals)

18
The Ventricles

19
Cerebral Cortex

• Areas (lobes) of brain
• Occipital lobe
• Parietal
• Temporal
• Frontal
• Limbic

20
terms

• gyri (hills or folds)
• sulci (valleys)
• corpus callosum
• white matter
• grey matter

21
(No Transcript)
22
More Terms to know

• Cerebral cortex
• Corpus callosum
• Homunculus (next slide)

23
(No Transcript)
24
(No Transcript)
25
Expansion of Frontal lobe
26
Cerebral cortex

• 6 laminae
• Columns

27
(No Transcript)
28
(No Transcript)