Test One Ch 2 Flashcards
What are the two types of cells in the Nervous system?
Glia and Neruons
Glia
Supports neurons, provides growth and nutrition.
Neurons
Recieve, process, store and transport information rapidly.
Dendrites - Part of Neruon
recieves info
SOMA - Part of Neruon
cell body
Axon - Part of Neruon
Long fibre, action potentials
Terminal Button
Contains the Nerotransmitters
Neurotransmitters- Part of Neruon
Chemical Messengers, stored in vescicles
Action Potential
electro chemical signals.
Synapse
gap between neurons
the communication point between terminal button
and dendrites
Neurotransmitters
Acetylcholine - movement memory
Norepinephrine - alertness, mood
Serotonin - mood, agression, sensory perception
Dopamine, Reword, and please and movement.
GABA - inhibitory
Glutamine- Exhibitory
Endorphins - pain relief
Centeral Nervous System
Brain, Spinal chord
Peripheral Nervous System
All Nerons outside of the centeral nervous system, bodily nerves,
sematic vs automatic
Sematic devision of Peripheral Nervous System
messages from PNS to CNS,
Messages from CNS to skeletal muscles
Concious voluntary movements.
Autonomic Division of peripheral nervous system
Sympathetic nervous system, actions that dont require concious action,
Parasympathetic NS - rest and digest.
Spinal Chord
Colomn of neurons, controlls reflexes
Three parts of the Brain
Hindbrain, Midbrain, Forbrain
Hindbrain
medulla, controls heartrate and breathing
cerebellum, balance and coordination, learning and memory
Midbrain
retucular formation, controls level of conciousness, attention and sleep.
Forebrain
left hemisphere and right hemispheres.
Cerebral Cortex
Outer layer of the forbrain,
gray matter, folds
Frontal Lobe
Motor cortex
Voluntary movement
pariatle lobe
touch temperature, pain, pressure
temporal lobe
primary auditory cortex
