Biopsychology Flashcards
Sensory neurons
Carry information from senses to the central nervous system
What is a neurone?
Ar neurone is a nerve cell, which send and recieve electrical information or nerve impulses from other neurone or cells.
Motor neurons
Transmits messages from central nervous system to the muscles
Interneurons
Connect neurons to other neurons (connector neurons)
What are neurotransmitters?
Neurotransmitters are brain chemicals that affect cognitive processes and behaviour
Acetylcholine
Found at synapses between motor neurons and muscle cells and is responsible for movement
Dopamine
Affects arousal pleasure and voluntary movement too much dopamine is thought to be responsible for schizophrenia
Serotonin
Governs sleep, aggression and mood. low levels of serotonin are associated with depression
Central nervous system
It is made up of brain and spinal-cord
- The spinal-cord with you and passes messages to and from the brain and connects to nerves in the peripheral nervous system
Peripheral nervous system
Consist of neurons that send information to and from the Central nervous system
Somatic nervous system
Transmits information received by the senses to the Central nervous system and sends the messages from the central nervous system to the muscles
Autonomic nervous system
- Divided into sympathetic and parasympathetic nervous system
- links the central nervous system to the internal organs and controls the basic functions suach as breathing and digestions
- involuntary
What are the three parts of the brain?
Brain stem, cerebellum amd cerebral hemisphere
Function of the cerebral hemisphere
Performs higher functions concerned with vision and memory
Function of brainstem
Control of basic functions like sleeping and waking up and bodily functions such as breathing and heart rate
