AOS 1: Nervous System Flashcards
Two parts of the NS
- Central NS
- Peripheral NS
Two parts in the CNS
- Brain
- Spinal Cord
THREE parts of the brain
- Forebrain
- Midbrain
- Hindbrain
Two parts in the PNS
- Somatic NS
- Automatic NS
Two parts of the automatic NS
- Sympathetic NS
- Parasympathetic NS
THREE types of responses:
- Autonomic Responses
- Voluntary Responses
- Spinal Reflexes
What is IV
The variable we change
What is DV
Variable you measure
what is Extraneous Variables
Variables other than the IV, that could have an effect on the DV.
Somatic features:
OFTEN conscious
Voluntary
Skeletal Muscle Movement
Autosomatic features:
- Unconscious
- Involuntary
- Visceral Muscle Movement
Process of the somatic NS ( not really part of the diagram )
- Sensory Neurons
- Brain
- Sensory Neurons
step 1: Sensory Neurons
- Detects stimuli
- Info sent via PNS to spinal cord
- Sent via afferent track to the brain
SIGNAL : body to brain
step 2: Brain
- Coordinates a response
- Sends signal to spinal cord & specific body part via efferent tract
SIGNAL : brain to body
step 3: Motor Neurons
Coordinates movement of body part
SAME
Sensory
Afferent
Motor
Efferent
What does NS recieve
Info externally as raw energy: eg light wave, sound wave )
What type of energy is info transformed to
Info is transformed into electrochemical energy to transfer info around the body.
a NERVOUS SYSTEM must
- Receive sensory info from external and internal factors
- Process info & transmit around body
- Organise & coordinate response to info
