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20 terms

Animal Structure and Function

Vocab word for Animal Structure and Function. 2011
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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