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Body Systems Definitions
Terms in this set (61)
a place where two or more bones of your body come together
tough supportive tissues that is softer and more flexible than bone
calcium and phosphorous deposited within cartilage and makes it hard
fills the spaces of bones, red and yellow
allow for movement and protects bones from friction and force
condition in which bones become weak and brittle
break in bone
over stretched or torn ligament
when the ends of bone joints are forced out of their original positions
serious damage to cartilage
too strenuous of an activity or when a joint is used after it has been hurt
abnormal curvature of the spine
involuntary muscle that causes movement
Ex; intestines, lung
involuntary muscle found only in the heart
muscle that you can control to help you do activities
a thick strand of tissue that is connected to bone, and helps it to move.
artificial form of male hormone testosterone
pulled muscle overworked or over stretched too fast
overuse of tendons = painful swelling and irritation
the most basic unit of the nervous system
neurons which gather info through taste, touch, smell (5 senses).
located in brain and spinal cord (phone ring noise neurons>single to brain).
impulses to muscle and glands; neurons that help you react to situations, brain to movement
Central Nervous System
Includes brain and spinal cord
automatic response to the environment
Peripheral Nervous System
Network of nerves that connect the rest of your body to the spinal cord and brain
outside environment, heart rate and blood pressure. From 5 senses to brain.
carries responses to muscles and glands.
Somatic nervous system - signals and voluntary actions
Autonomic nervous system - signals and regulation automatically
severe bump to head causing brain to hit off of the skull
prolonged period of deep unconsciousness
the loss of ability to move and feel a part of the body
inflammation of membranes surrounding the brain and the spinal cord
uncontrolled nerve impulses sent to the brain
condition in which a person is prone to seizures
upper heart chambers (2)
lower heart chambers (2)
Pumps blood out of the heart
blood vessels that carry blood away from the heart
Carry O2 rich blood
smallest blood vessels in the body, branching from the arteries
Diffuse O2 into blood and CO2 out
carry blood to the heart
is the force of your blood against the walls of your blood vessels
pressure in which heart's ventricles contract
pressure in which the heart's ventricles relax
Normal: 90/60 to 119/80
Low: lower than 90/60
High: higher than 119/80
liquid component, makes up 55% water nutrients and salt
red blood cells
blood cells that carry O2 from the lungs. Contains hemoglobin
white blood cells
protects against disease and foreign substances. Larger than red blood cells but there are less
cell fragments that help to blood clot
"silent killer" blood pressure is consistently 140/90, heart stops working w/out notice
LDL - bad builds up plaque in walls, clog arteries
HDL - good cleans your arteries
heart attack stroke
when blood thickens and blood vessels are blocked
extra sound in the heart when the valves are not closing properly
heart wall opening
a hole separating the 2 atria.
what is the pathway of air?
nose > pharynx > larynx > trachea > bronchi > lungs
what is left at the end of ossification?
ears, nose, some joints
what are the two types of bone?
compact and spongy
what are the types of joints?
hinge, pivot, gliding/saddle, ball in socket
how do muscles work?
in pairs, one contracts one way as the other contracts a different way
A thick column of nerve tissue that links the brain to most of the nerves in the peripheral system
how do you keep these healthy?
have a good diet, do exercise, avoid injury and infection
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