Animal Structure and Function

20 terms by lal44

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Vocab word for Animal Structure and Function. 2011

alveoli

tiny sacs of lung tissue specialized for the movement of gases between air and blood

bronchi

two short branches located at the lower end of the trachea that carry air into the lungs.

bronchiloes

small tubes that branch to form alveoli

chitin

Makes up the exoskeleton of arthropods

counter-current

flow of water in the gill chamber of fish allows for respiration, water passes one way and blood flows the other

diffusion

process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated

gill filament

fingerlike projection from a gill where respiratory gases enter and leave the blood

gill

respiratory organ of aquatic animals that breathe oxygen dissolved in water

gill arch

in fish, the skeletal-supporting structure of a gill

gas exchange

breathing, transport of gases, and exchange of gases with tissue cells; Provides O2 for cellular respiration and removes its waste product, CO2

haemoglobin

a protein containing iron, found in red blood cells, which carries oxygen

gill lamellae

where gas exchange occurs, with countercurrent flow between blood and water

lung

either of two saclike respiratory organs in the chest of vertebrates

permeable

allowing (especially liquids) to pass or diffuse through

respiration

the metabolic processes whereby certain organisms obtain energy from organic moelcules

spiracles

breathing tubes of insects located on abdomen

tracheal tubes

Tubes that bring gases in from the outside, in a series on each side of the body of an insect

trachea

membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi

tracheoles

In insects, narrow tubes branching from trachea and making direct contact with cells to facilitate gas exchange.

ventilation

the bodily process of inhalation and exhalation

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