Brain
The brain is visually split into 3 main parts. Name them.
Cerebellum, Cerebrum, Brainstem
What do CNS and PNS stand for?
Central Nervous System & Peripheral Nervous System
Name a neurotransmitter
Acetylcholine, Dopamine, Glutamate, Oxytocin, Adrenaline, GABA, Melatonin, Epinephrine, Norepinephrine, Serotonin
Name FOUR Functional parts of a neuron
1- cell body (soma) 2- dendrites 3- axon 4- myelin sheaths 5- axon terminals 6- nucleus
What are the 3 categories of neurons?
Motor, sensory, interneuron
Name 3 roles of the cerebrum
Higher-order thinking, Emotions, Voluntary muscle movement, Senses
**The 4 lobes of the brain!**
Name the structures of the entire nervous sytem
Brain, Spinal cord, and Nerves
What does an axon terminal hold inside its small vesicles?
neurotransmitters
What does a dendrite do?
Receives neurotransmitters from another neuron's axon terminal
Explain the direction of a nerve impulse
(Use the different types of neurons)
Sensory -----> Interneuron ------> Motor
What is the function of the Hippocampus?
to store long term memory
The primary cell that builds all the structures of the nervous system
Name the function of epinephrine.
Excitatory neurotransmitter that plays a role in the fight-or-flight response, increase arousal, and attention.
What is the purpose of the myelin sheath?
insulates axon, protects and speeds up nervous impulse
Neurons taking information back to your body are called what?
motor neurons/Efferent neurons
What part of the brain is responsible for speech production and articulation?
Broca's Area
A sensory neuron connected to touch receptors in the skin receives information from the environment and sends nerve impulses to...
The brain
name 3 differences between the endocrine system and nervous system
the endocrine system: travels slower, in blood, wide spread and long lasting effects.
nervous system: travels fast, through nerves, targeted, quick/short effects
Name the tiiiiiiny empty space between dendrites of one neuron and axon terminals of the connecting neuron
Synapse
What are the 4 different types of Neurons?
Multipolar, Unipolar, Bipolar, Psuedounipolar
At what age range will the brain reach about 90% of its adult size?
Toddler: 2-5 yrs
What structure functions like a highway and transmits nerve impulses from the body to the brain and from the brain to the body?
The spinal cord
Explain what happens to an action potential when it reaches the axon terminal
There are approximately how many neurons in the human brain?
86 billion
What is the most abundant type of neuron in the body?
Interneuron