Chapter 7- Nervous System Flashcards
The Function: Nervous System
Uses sensory receptors to monitor changes occurring both inside and outside the body
Name the 2 subdivisions of the Nervous System
Central Nervous System
Peripheral Nervous System
The Function: Neuroglia cells (nerve glue)
Support, Insulate and Protect the delicate neurons
The Function: Neurons (nerve cells)
Highly specialised to transmit messages from one part of the body to another
Name the 2 major functions of Neurons (nerve cells)
- Irritability
2. Conductivity
(Nervous System)
Define: Irritability
the ability to respond to stimulus and convert it into a nerve impluse
(Nervous System)
Define: Conductivity
the ability to transmit the impulse to other neurons, muscles or glands
Name the 4 major regions of the Brain
- Cerebral Hemispheres
- Diencephalon
- Brain Stem
- Cerebellum
Name the 3 regions of the Cerebrum (cerebral hemispheres)
- Cerebral Cortex
- Cerebral White Matter
- Basal Nuclei
Name the 3 major structures of the Diencephalon
- Thalamus
- Hypothalamus
- Epithalamus
The Function: Brain Stem
provides a pathway for ascending and descending tracts
Name the 3 structures of the Brain Stem
- Midbrain
- Pons
- Medulla Oblongata
The Function: Cerebellum
Provides the precise timing for skeletal muscle activity and controls our balance and equilibrium
The Function: Spinal Cord
- Provides a 2 way conduction pathway to and from the brain
2. Is a major reflex centre
Define the Structure: Peripheral Nervous System
Consists of nerves and scattered groups of neuronal cell bodies found outside the CNS
