1. UNIT 3 THE CONSCIOUS SELF
AREA OF STUDY 1: MIND, BRAIN & BODY

2. THE SPINAL CORD
The cable-like column of nerve fibres that extends from the base of the brain to the lower back. It is encased in a series of bones called the vertebrae
Receives sensory information from the body (via the peripheral nervous system) and sends these messages to the brain
Receives information from the brain and sends it to relevant parts of the body (via the peripheral nervous system) to control muscles, glands and various organs
KK 5A – PAGE

3. THE SPINAL CORD
Transmission of information occurs through interconnected neurons that form neural pathways (circuits or tracts)
Ascending neural pathways: for somatosensory information which comes in from various parts of the body through the spinal nerves up to the brain
Descending neural pathways: for motor information which leaves the brain and travels down the spinal cord to exit via the spinal nerves to its destination in the muscles, organs and glands
KK 5A – PAGE

4. THE SPINAL CORD THE SPINAL REFLEX
KK 5A – PAGE
SENSORY INTER-NEURONS MOTOR
NEURONS NEURONS
NO INPUT FROM BRAIN

5. HOMEWORK LEARNING ACTIVITY 4.12 (pg.197)
KK 5A – LEARNING ACTIVITY 4.12 (PAGE 197)