Neurons

Gilal Cells

Gilal Cells

Regulatory cells maintaining all bodily functions and restoration of mylein

Sensory Neurons

Neurons allowing us to feel things

Motor neurons

In charge of transmitting signals through the body for movement

Interneurons

Serves as the connector between motor and sensory,Sensory, process Sensory and makes motor neurons react to the Sensory. Plays a big role in learning memory and cognitive functions

Reflex Arc

Controls involuntary reactions to stimuli, built on sensory motor neurons

Resting potential

The electric charge of a Neuron when not actively sending signals

Depolarization

Movement of cell becoming more positive or less negative, When a neuron is depolarized, it is more likely to fire an action potential.

Refractory Period

Time where it's impossible for another fire to take place usually right after it fires

Reuptake

allows neurotransmitters to be reused and helps regulate neurotransmitter levels present in the synapse.

Excitatory neurotransmitters

chemicals that cause a neuron to "fire off a message" by passing it along to the next cell

Excitatory or Inhibitory?: Glutamate

Excitatory

Excitatory or Inhibitory? : Norepinephrine

Excitatory (n)

Excitatory or Inhibitory?: epinephrine

Excitatory (e)

Excitatory or Inhibitory? GABA

Inhibitory (Gb)

Excitatory or Inhibitory? Histamine

Excitatory (h)

Excitatory or Inhibitory? Acetylcholine

Excitatory (a)

Inhibitory Neurotransmitters

Messengers that block or reduce cell transmission across synapse, making it unlikely that a target cell would take action (decreases action potential)

Excitatory or Inhibitory?: serotonin

Inhibitory (s)

Excitatory or Inhibitory?: dopamine

Inhibitory (d) and excitatory

What does Serotonin do

Contributes to wellbeing and happiness, helps sleep regulate

What does Dopamine do

Releases feelings of pleasure and reward, usually linked with addiction

What do Endorphins do

Create euphoria, released during exercise and excitement and overall feeling of well-being

What does Glutamate do

Involved with learning and memory, most common. Regulates development and creation of nerve contacts

What does Acetylcholine do

Involved in thought, and learning processes and activates muscle action in the body. Associated with awakening, A(cetycholine) A(wake)

what does GABA do

Creates calmness, high levels improve focus, low levels cause anxiety and contributes to motor and vision.

What does Norepinephrine do

Increases alertness arousal and attention

What does substance p do

transmission of pain information into the central nervous system

Leptin function

Regulates appetite and energy

Ghrelin

Increases appetite and signals brain that you're hungry

Oxytocin function

Love hormone