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The Respiratory System
Terms in this set (34)
Cells turning glucose into ATP
System that exchanges gases between body cells and outside air
Organs of the respiratory system, and where O2 is transferred from respiratory system to circulatory system
How do earthworms respirate?
They extract the oxygen from air through their skin, where the capillaries lie. The skin must be kept moist for diffusion.
What is the earthworms respiratory surface?
Where do fish get their oxygen from?
How do fish respirate?
They use their gills to extract oxygen from the water. The diffusion occurs in the lamellar of the gills. Uses a process of Counter-Current Exchange
Counter Current Exchange
Process in which 2 flowing bodies (oxygen, respiratory waste) cross each other (in and out)
What is the respiratory surface of a fish?
The Lamellae in the gills
How do insects respirate?
They have a tracheal system that consists of a network of tubes that that carry oxygen throughout the body
Passageway that is responsible for the flow of air in the body
What are the 4 processes of breathing?
Ventilation, Pulmonary Gas Exchange, Gas Transport, and Peripheral Gas Exchange
Process that begins respiration (inhale)
Cavity lined with mucus and hairs to trap debris
Tube shared with digestive system
Opens and closes to control the difference between breathing and eating
Larynx (voice box)
Contains vocal cords that allow sound
How does the voice box work?
Rushing air causes cords to vibrate while we exhale
Long tube that expands into chest and branches into the Bronchi
Bronchi (s. Bronchus)
Contains mucus and cilia to trap any remaining particles and sweep them away to throat
Branches of the bronchi, which act as a smaller passage way in the lungs
Grape like clusters in the lungs where gas exchange occurs
Pulmonary Gas Exchange
Occurs in alveoli, and is when oxygen poor blood becomes rich
Rich blood leaves the heart and enters the rest of the body
Capillaries that supply body tissues and cells
Peripheral Gas Exchange
Where oxygen leaves the peripheral capillaries and back to the lungs where the CO2 can be exhaled
Active movement that results from the contraction of the diaphragm
What happens when the diaphragm contracts?
Rib cage expands, and air rushes into the lungs
What happens when the diaphragm relaxes?
Chest volume is decreased, and air flows out of lungs
What part of the brain controls breathing?
The Brain Stem
What section of the Nervous System controls the diaphragm contraction?
The Autonomic Nervous System
What does the brain stem monitor?
Large sheet like muscle below the lungs
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