structure and function of body systems Flashcards Preview

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Flashcards in structure and function of body systems Deck (29):
1

multicellular organism

an organism made up of multiple cells

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tissue

a group of similar cells working together to perform a function.

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organ

a group of tissues working together to perform a function

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organ system

a group of organs working together to perform a function.

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gas exchange

the transfer of gases between an organism and its environment

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lungs

the organ in which gas exchange takes place

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ribcage

the bones that protect the lungs

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respiratory system

the organs involved in gas exchange

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trachea

a tube that helps air get to the lungs

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alveolus

a structure inside the lungs where gas exchange takes place with the blood

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inhale

breathing in, to take in oxygen

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respiration

a chemical reaction where food and oxygen are converted into energy, water and carbon dioxide

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exhale

breathing out, to remove carbon dioxide

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condense

the change of state from gas to liquid

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contract

get smaller

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diaphragm

the sheet of muscle used in breathing

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lung volume

the amount of oxygen that can be taken in at one time

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bone

a tissue that forms a hard structure, used to protect organs and or movement

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skeleton

all of the bones together in an organism

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support

the support in an organism that keeps it together

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protect

things that are protected in an organism

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bone marrow

is inside larger bones, produce red blood cells

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biomechanics

study of the mechanical laws relating to the movement or structure of living organisms.

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joint

a part of the skeleton where two bones join together

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cartilage

the strong, smooth tissue that covers the end of bones to prevent them rubbing together

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ligament

joins two bones together

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newtons

a unit of force

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tendon

joins a muscle to a bone

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antagonistic muscles

a pair of muscles that work together to control the movement at a joint - as one muscle contracts, the other relaxes