The Brain and Nervous system Flashcards
What is ‘the nervous system’?
- Communication system
- sending signals
State 3 key points about the spinal cord and its relation with the nervous system.
- extends from ‘medulla oblongata’ to the ‘lumbar region’. (long bundle of nerves).
- Protected by vertebrae, surrounded by cerebrospinal fluid = provides nutrients and removes waste.
- highway for messages (body to brain, brain to body).
What are the names of the 3 parts of the brain?
- The Forebrain
- The Midbrain
- The Hindbrain
State 3 parts of the ‘Forebrain’ and their function.
- The Thalamus = sleep, awareness, wakefulness
- The Hypothalamus = temperature, eating/drinking behaviours.
- The cerebral cortex = alertness, memory, temperament.
State 3 facts about the ‘Midbrain’.
- connects the fore and hindbrain.
- contains cerebrospinal fluid.
- enables the brain to integrate sensory information from eyes and ears by muscle movements.
State 3 parts of the Hindbrain and their function.
- cerebellum = coordination
- pons = respiration
- medulla oblongata = blood pressure, motor function, respiration.
What nerves make up the ‘Peripheral Nervous System’?
- sensory nerves
- motor nerves
- autonomic nerves
- gilla nerves (support nerve cells)
‘Afferent’ means….
…Inwards or towards something.
‘Efferent’ means….
…Outwards or away from.
What is the purpose and function of ‘motor nerves’?
Receive information in order to coordinate a response.
What do ‘Autonomic nerves’ control?
- involuntary functions (heart rate, sweating, digestion).
Which system controls the following:
- collection of information
- Receive information
The Voluntary Nervous System
Which system controls the following:
- Fight or flight
- Heart rate increase
- Increased Respiratory rate
- Increased flow to muscles
- Reduced digestion, excretion, urination
The Sympathetic Nervous System
State 4 things of the Parasympathetic Nervous System
- opposite to the sympathetic nervous system
- relaxes
- heart rate reduced
- digestion and bowl movement are efficient.
