1. The Brain – “Nature’s Computer”
The Nervous System
The Brain – “Nature’s Computer”

2. Hypothesize: What factors might correlate to intelligence?
The Brain – Intro.
The typical brain weighs 1.4 kg (3 lbs)
The largest recorded brain was measured at 2100 cc. The smallest  750 cc.
There is no correlation of brain size to intelligence…
Hypothesize: What factors might correlate to intelligence?

3. Brain – Structural Overview
“brainstem”

4. Bonus: Identify the following brain features: gryi, sulci, fissures
The Cerebrum
Divided into a left and a right hemisphere
Surface is highly folded and covered in neural cortex (grey matter)
Involved with : conscious thought, sensation, intellect, memory, and complex movement
Bonus: Identify the following brain features: gryi, sulci, fissures

5. The Cerebellum Second largest part of the brain
Surface is covered by the cerebellar cortex (more grey matter)
Compares arriving sensations to previously experienced sensations

6. Diencephalon
Contains thalamus which relays and process sensory information
Below the thalamus, is the hypothalamus. This is involved with emotions, hormone production, and autonomic function

7. Brain Stem
Mesencephalon – “midbrain”: contain nuclei that process visual and auditory information and control reflexes
Pons – “bridge” : connects cerebellum to brain stem, involved with motor control
Medulla oblongata – contain major centers that regulate heart rate, blood pressure, digestion (VITAL)

8. Ventricles of the Brain
Ventricles – chambers that form when the brain develop. They are filled with CSF (cerebrospinal fluid)
There are four ventricles in the brain: two in the cerebrum, one in the diencephalon, and one in the brain stem/cerebrum area