Module 2: Physical Influences On Thoughts And Feelings Flashcards
nervous system
consists of the brain
Neurons
Individual cells in the nervous system that receive and transmit information. The entire nervous system depends on them. They don’t reproduce easily and are easy to destroy.
Glands
Soft groups of cells
endocrine system
Made up of glands and hormones
Hormones
Powerful chemicals produced by the glands
Receptors
Places on the cell’s surface that react to hormones
target cells
A cell with a receptor
pineal body
Between the thalamus and controls your sleep
optic nerve
Nerve from the eyes that help the pineal body
Serotonin
A neurotransmitter that promotes wakefulness
Melatonin
A neurotransmitter that encourages sleep
Caffeine
Found in coffee
pituitary gland
Releases hormones when told
epinephrine or adrenaline
Prepares for conflict; gives the flight or fight option
Cortisol
Made of adrenal glands and released in stressful situations
panic attack
All the feelings of being startled far out of proportions to the situation
panic disorder
Living in fear of more panic attacks
Thyroid
A gland that produces thyroxine
Thyroxine
A hormone that increases the metabolic rate of cells
metabolic rate
Makes sluggish cells act more quickly to use oxygen and store more energy to preform their functions
Iodine
Found naturally in seafood
Goiter
Overgrowth of the thyroid gland
Insulin
Controls glucose levels in the blood
reactive hypoglycemia
Over correction by insulin
diabetes
A disease of constantly high glucose levels
diabetes mellitus
Most common type of diabetes
Type 1 diabetes
Lack of insulin production by cells in the pancreas
autoimmune disease
Immune cells in the body attack the bodies own insulin making cells
type 2 diabetes
A risk for obese people; body doesn’t respond right to insulin
insulin resistance
Pancreas produces insulin but the cells of body don’t respond normally to the insulin
encephalitis
Inflammation of the brain
Meningitis
Inflammation of the meninges
Hematoma
A blood clot
edema
swelling
aneurysm
A weak place in a blood vessel
hemorrhagic stroke
Blood vessel in the brain breaks causing pools of blood in a area of the brain
ischemic stroke
Restricted blood flow in the brain
Cerebrovacular Accident
Interruption in normal blood circulation in the brain
recovery position
lying on the side with hands by head
epilipsy
A person who has had more than one seizure
seizure
Abnormal excessive activity of the brain’s neurons
Concussion
mild traumatic brain injury
Digital media addiction
Excessive computer
withdraw
Escape
physical dependence
Suffering pain if the addictive isn’t consumed regularly
addiction
A strong physical or emotional on a substance that causes relief from pain or pleasure
heroin or morphine
Imitates opioid peptides and relieves pain in illegal ways
Dopamine flooding
Produces a high temporary feeling of intense pleasure or energy
Cocaine and Amphetamines
Increases dopamine but in excessive
mental illness
Inability to function in every day life
dopamine and serotonin
Keeps you alert
Norepinephrine
Helps you concentrate
Endorphin
Produced in the brain and released in times of danger
opioid peptides
Primarily inhibits pain but also contributes to pleasure
Acetylcholine
Promotes restful sleep
GABA
Makes the receiving neuron less able to fire off a impulse
Glutamate
Excites the receiving neuron to fire off a impulse
Neurotransmitter
A chemical that can defuse in fluid between the cells and cross the synapse
Synapse
Tiny space between each sending neuron’s axon
Hypothalamus
Crucial link between the nervous system and the endocrine system; senses changes in the blood
Thalamus
A relay center for messages going in and out of the brain
nuclei
Responsible for controlling breathing
brain stem
Contains visible clusters of nuclei
Cerebellum
Coordinates muscle movement and balance
Cerebrum
Large cap covering the top of the brain
skull
A very dense bony shell that encloses the brain
Parts of a neuron
Axon
central nervous system
Composed of association neurons in the brain and spinal cord
peripheral nervous system
Made up of sensory and motor neurons
reflex
A quick relay from the sensory neuron to the motor neuron
Stimulus
A sensible change that is going on around or within you
Sensory receptors
Helps you feel pain
association neurons
Link the sensory neuron with options for action
mixed nerves
Combination of both sensory and motor neurons
Motor nerve
Carries impulses away from brain towards muscles and glands to cause action
sensory nerve
Brings info to the brain and spinal cord
nerve
A bundle of axons with a protective layer
impulses
How neurons communicate; enters through the dendrites and sent out through axon
Axon
Single long extension off the call body; triggers several muscle cells and other neurons
myelin sheath
A insulation provided by tiny cells that form a protective layer around the axon
Dendrites
Short branch extensions off the cell body
cell body
Contains the nucleus