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Words to learn from the US Career Institute Massage Therapy Course.

central nervous system (CNS)

brain and spinal cord

peripheral nervous system (PNS)

nervous system outside of brain and spinal cord; primarily nerves that extend from brain and spinal cord

autonomic nervous system

involuntary part of the peripheral nervous system; regulates glands, smooth muscles, and cardiac muscles

sympathetic nervous system

division of autonomic nervous system in charge of "fight or flight" response

parasympathetic nervous system

division of autonomic nervous system in charge of rest and rejuvenation

neuron

nerve cell

dendrite

part of neuron that receives information into the cell

axon

part of neuron that conducts nerve impulses out of the cell

myelin sheath

insulates and protects axons

nerve impulse

electrical message carried by a neuron

electrolyte

conducts electrical impulses in the body

sensory neuron

neuron that gathers sensory information such as taste, smell, touch, sight, hearing, pain, pressure, heat, or light

interneuron

a neuron that carries messages between other neurons to process, integrate, think, and decide

motor neuron

a neuron that carries action messages to muscles and glands

spinal nerves

31 pairs of nerves arising from the spinal cord

cranial nerves

12 pairs of nerves arising from the brain

proprioception

unconscious sensory apparatus that monitors muscles

spindle cell

proprioceptor that measures change in length and speed of change in muscle tissue

golgi tendon organ

proprioceptor that measure the weight a muscle is moving

meninges

tissue surrounding the brain and spinal cord

cerebrospinal fluid

clear fluid that circulates and surrounds brain and spinal cord

paraplegic

total motor and sensory loss of lower limbs

quadriplegic

total motor and sensory loss of upper and lower limbs

plexus

a network of nerves

respiration

breathing

pharynx

throat

larynx

voice box

trachea

windpipe

bronchial tubes

breathing tubes inside the lungs

diaphragm

primary breathing muscle

esophagus

tube between throat and stomach

pancreas

digestive organ on the left side of the thorax

liver

digestive organ on the right side of the thorax

pituitary

makes pituitary hormones

pineal

makes melatonin hormone

thyroid

makes thyroid hormones

thymus

stimulates development of immune cells

adrenals

makes stress hormones

gonads

makes sex hormones

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