3.2.1.1 Biopsychology Flashcards
Fill in the blanks (only state the system/organ)
What are the 2 roles of the CNS?
- Control of behaviour and psychological processes
- Regulation physiological processes in the body to maintain life
What is the role of the brain?
Provides conscious awareness
What is the role of the spinal cord?
- Transfer messages from brain to rest of body
- Responsible for simple reflexes
What is the function of the cerebellum?
Responsible for controlling motor skills, balance coordination and muscles
What is the function of the occipital lobe?
Processes visual information
What is the function of the parietal lobe?
Integrates information from the different senses & important for spinal navigation
What is the function of the frontal lobe?
Associated with higher-order functions
e.g. planning, abstract reasoning, logic
What is the function of the temporal lobe?
Processes auditory information
What is the function of the brain stem?
Regulates automatic functions which are essential for life
e.g. Heartbeat, breathing, consciousness
What is the PNS made up of??
Made up of all nerves outside CNS
What is the role of PNS?
Relays nerve impulses back and forth between the body
What is the role of the somatic nervous system?
Transmits and receives information from senses & controls movement and reaction of muscles
What is the somatic nervous system made up of?
Made up of sensory receptors (that carry information to spinal cord and brain) & motor pathways (that allow brain to control movement)
What is the role of the autonomic nervous system?
Transmits information to and from internal organs to sustain life
[Involuntary actions (e.g. heart breaking, body temperature regulation) are regulated by ANS without conscious awareness]
What is the autonomic nervous system made up of?
Only motor pathways
What is the role of the sympathetic nervous system?
Involved in responses that prepare body for fight or flight
(increasing heart rate, blood pressure and lowering digestive activities)
What is the role of the parasympathetic nervous system?
Relaxes the body - returns us to ‘normal’ resting state
(lower heart rate, blood pressure and increased digestive activity)
Where are sensory neurons found?
Found in receptors e.g. eyes, ears. etc
What do sensory neurones do?
Carry nerve impulses to spinal cord and brain
(Don’t always reach brain)
Where are relay neurones found?
Found in brain and spinal cord
What do relay neurones allow?
Allow sensory and motor neurones to communicate
Where are motor neurones found?
Found in CNS
What do motor neurones do?
- Control muscle movements
- When stimulated = release neurotransmitters which bind to receptor on muscles to trigger a response
What is the function of dendrites?
Receive signals from other neurones or from sensory receptor cells
What is the function of the cell body?
‘Control Centre’ - contains nucleus
What is the function of the axon?
(Long slender fibre that) carries nerve impulses as an electrical signal (AKA action potential) away from cell body to axon terminals (where neurone ends)