Neurons & Nervous Systems Flashcards
Axon
Away impulses,
Part of the neuron that extends off the soma, splitting several times to connect with other neurons; main output of the neuron.
Resting membrane Potential
The voltage inside the cell relative to the voltage outside the cell while the cell is a rest (approximately -70 mV).
(Resting)
Diffusion
Diffusing out of the party
Diffusing the perfume
The force on molecules to move from areas of high concentration to areas of low concentration.
Electrostatic Pressure
similar charge to repel each other; the force of two ions with opposite charge to attract to one another.
Threshold of Extraction
Specific membrane potential that the neuron must reach to initiate an action potential.
Central Nervous
Brain and Spinal cord
Peripheral
Nerves
Motor Division
Efferent, brain to the muscles
Sensory Division
Afferent, picking up stimuli
Samatic
Voluntary, skeletal movement
Automatic
Involuntary
Sympathetic
Crying
Parasympathetic
It’s okay, your gunna be okay
Cerebrum
Compass
Consists of left and right hemispheres that sit at the top of the nervous system and engages in a variety of higher-order functions.
Cerebellum
Controls balance
Ballerina
Hippocampus
Learning hippo
(plural form, hippocampi) A nucleus inside (medial) the temporal lobe implicated in learning and memory
Hypothalamus
Part of the diencephalon. Regulates biological drives with pituitary gland.
Limbic System
Lying Liking Loving
A loosely defined network of nuclei in the brain involved with learning and emotion.
Medulla oblongata
An area just above the spinal cord that processes breathing, digestion, heart and blood vessel function, swallowing, and sneezing.
TREX
Occipital lobe
Visual areas
Parietal Lobe
behind the central sulcus that is engaged with somatosensory and gustatory sensation.
Pons
Messenger
A bridge that connects the cerebral cortex with the medulla, and reciprocally transfers information back and forth between the brain and the spinal cord.
Action Potential
A transient all-or-nothing electrical current that is conducted down the axon when the membrane potential reaches the threshold of excitation.
Ex: when the party starts
