Memorization Quiz Flashcards
Why do we need a nervous system?
To react to surroundings and to coordinate
What is the CNS composed of?
Brain and the Spinal cord
Define the peripheral nervous system.
The nerves outside of the brain and spinal cord
Which neuron runs afferent to the CNS?
Sensory neuron
Which neuron runs efferent from the CNS?
Motor neuron
What are the nodes of Ranvier? Why are they important?
The gaps in the myelin sheath and it allows the electrical impulse to “jump” between gaps.
What is a stimulus?
A change in the environment.
What is a reflex?
An unconscious reaction.
What is the junction between neurons called?
Synapse
Describe one way in which a neuron is specialized?
Dendrites which can form synapse which forms a junction.
What does CNS stand for?
Central Nervous System
Which type of neuron is contained entirely within the CNS?
Relay neuron
What type of cell is capable of initiating an impulse in a sensory neuron?
Receptor cell
What are two types of effector? Give an example is.
Muscle- e.g Tricep
Gland- e.g Salivary Glands
Which part of the neuron is made up of fatty, electrically insulating material?
Myelin sheaf
What part of the neuron receives incoming information?
Dendrite
Name the lobes of the cerebrum.
Parietal, Occipital, Temporal, Frontal
Which lobe is concerned with processing visual information?
Occipital
How big is a typical node of Ranvier?
1 micrometer
What is the function of the cerebellum?
Motor control
Which lobe is concerned with processing sensory information?
Parietal
What is a receptor?
A cell
What is a dependant variable?
The one you can measure
Why do we do repeats in an experiment?
To get a fair test
