Chapter 1&4 Flashcards
Explain how a neurotransmitter goes through a neuron
Through dendrites; to the soma which has the neucleus. Then trough the axon, which is covered in myelin sheath, into axon terminals and the terminal buttons
What is the gap inbetween the dendrite and terminal buttons called
Synaptic cleft, junction
Definition of glial cells
Not part of the neuron, but has an important role in supporting the neurons: basically clean the neurons and around them
Explain the PNS tree
Peripheral nervous system-> somantic nervous system (sensory and motor neurons) & Autonomic nervous system (sympathetic and parasympathetic nervous system)
What are the 8 steps of the scientific method
1 identify area of research 2 collect information 3 form hypothesis 4 design research method to test hypothesis 5 collect data and analyse 6 draw a conclusion 7 accept or reject hypothesis 8 report findings and test conclusion
What are the overriding principles
Participants may refuse to take part in experiment, researchers must have respect for participants, participants must not be identified in any way
Explain the somantic NS
Controls voluntary movement
Explain Autonomic NS
Controls involuntary movement
What is a synapse
The space between the dendrite and the terminal button
What’s the difference between sensory neurons and motor neurons
The sensory neuron send information to the CNS; if you burn your hand the sensory neurons will send the message that it is being burnt. And the motor neuron will engage a response by carrying signals from the brain to the muscle fibre to move the hand away from the heat
What does the sympathetic NS do
It is the neurons that give you the fight-flight-freeze response
What is parasympathetic
The neurons that keep your body homeostasis
