Biopsych Flashcards
What are the divisions of the nervous system
Central and peripheral
What are the two divisions of the peripheral nervous system
Somatic and autonomic nervous system
What are the two divisions of the autonomic nervous system
Sympathetic and para sympathetic
4 main components of the brain
Cerebrum
Cerebellum
Brain stem
Corpus callosum
What is the function of the cerebrum
Divided into 4 parts
Frontal lobe-motor info
Temporal lobe
Parietal lobe- sensory info
Occipital lobe
What is the somatic nervous system
Under conscious control
Controls skeletal muscle movement and receives information from sensory receptors
What is the autonomic nervous system
Involuntary
Governs vital functions in the body such as breathing and heart rate
Differences between the somatic and autonomic systems
Somatic - has sensory and motor pathways
Autonomic- purely motor
Somatic-controls skeletal muscle movement
Autonomic- controls internal organs and glands of the body
Somatic- carries commands from the motor cortex
Autonomic- control centres are in the brain
What does the endocrine do
Is in charge of the body processes that happen slowly such as cell growth
Consists of glands which produce hormones which are released in the blood system to target the organs which contain receptors for specific hormones
What are the 3 types of neuron
Sensory
Motor
Relay
What does the sensory neuron do
Carry nerve impulses from sensory receptors to the spinal cord and brain
When the impulses reach the brain they are translated into sensations
LONG DENDRITES
SHORT AXONS
What does the relay neuron do
They allow sensory and motor neurons to communicate with eachother
Most common type
SHORT DENDRITES
SHORT AXONS
What do the motor neurons do
Connect the CNS to effectors such as muscles and glands
SHORT DENDRITES
LONG AXONS
What is synaptic transmission
The process by which neighbouring neurons communicate with each other by sending chemical messages (neurotransmitters) across the synapse that separates them
Describe the chemical transmission
Look in book
