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26 terms

NLN science review 2

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sysole
when the heart contracts, the pressure increases
diastole
when the heart relaxes, the pressure decreases
coronary circulation
the circulation of blood to the heart
pulmonary circulation
the circulation of blood to the lungs
systemic circulation
the circulation of blood throughout the body
white blood cells
less abundant, involved in host immune defense
platelets
pieces of cells important in blood clotting
lymph nodes
special pockets in lymphatic system where lymph is filtered
arteries
transport blood away from the heart
veins
transport blood to the heart
lactic acid
produced during anaerobic respiration, is a cause of sore muscles after strenuous exercise
sensory neurons
transmit impulses from sense organs and receptors
interneurons
make up brain and spinal cord
motorneurons
carry impulses from interneurons to skeletal and visceral muscles
somatic branch
concerned with external environment
autonomic branch
concerned with internal environment
reflex arc
carries out quick, simple, and automatic responses to certain stimuli
cerebrum
complex and high level thinking
cerebellum
muscular coordination and balance
medulla
body temperature, blood pressure, breathing
hormones
chemicsl that act as messengers and that help control the important processes of growth, metabolism, reproduction, osmotic balance, and development
osteoarthritis
a degenerative bone and joint disease
rheumatoid arthritis
a degenerative joint disease caused by autoimmune response
osteoporosis
a disease caused by calcium loss
ligaments
connect bones to bones
tendons
connect bones to ligaments