26 terms

mikey Respiration and Excretion

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The Respiratory System
The "system" that moves oxygen from the outside environment into the body. It also removes carbon dioxide and water from the body.
Respiration
The process in which oxygen and glucose undergo a complex series of chemical reactions inside cells.
Nose, Pharynx, Trachea, and Bronchi
As air travels from the outside environment to the lungs, it passes through each of these structures.
Pharynx
The only part of the Respiratory System that is shared with the Digestive System.
Cilia
Tiny hairlike extensions that can move together in a sweeping motion within the cells that line the nasal cavities.
Why is there cartilage in the trachea (aka. windpipe)?
To strengthen the trachea and keep it open.
Alveoli
The "grapes" or tiny sacs of lung tissue specialized for the movement of gases between air and blood.
Another name for windpipe.
Trachea
Another name for the throat.
Pharynx
The Nose, the Pharynx, the Trachea, and the Bronchi.
The Path that the Air travels from the outside environment (in order)
Bronchi
The passages that direct air into the lungs.
Lungs
The main organ of the respiratory system (think about breathing).
Gas Exchange
After air enters an alveolus, oxygen passes through the wall of the alveolus and then through the capillary wall into the blood. Carbon dioxide and water pass from the blood into the alveoli. What is this whole process known as?
An adult lung contains about 300 million alveoli.
How many alveoli does an adult's lungs contain?
Diaphragm
Located at the base of the lungs, this large, dome-shaped muscle plays an important role in breathing.
When you breathe, the actions of your rib muscles and diaphragm expand or contract your chest. As a result, air flows in or out.
Describe the process of breathing.
Another name for voice box.
Larynx
Larynx
located in the top part of the trachea, underneath the epiglottis.
Two
How many vocal cords (made of connective tissue) that produce your voice stretch across the opening of the larynx?
nose, pharynx, trachea, bronchi, and lungs
Name the structures of the respiratory system
Respiratory system moves oxygen from the outside environment into the body and removes carbon dioxide and water from the body.
What are the functions of the respiratory system?
Respiration refers to chemical reactions inside the cells. Breathing refers to movement of air into and out of the lungs.
What is the difference between respiration and breathing?
The oxygen molecule moves through the nostrils, pharynx, trachea, bronchus, smaller and smaller branches of the bronchial tree, and then into the alveolus.
Describe the path that a molecule of oxygen takes as it moves from the air outside your body into the alveolus.
They help the body expel mucus containing dust, pollen, and other particles inhaled.
How does coughing and sneezing protect the respiratory system?
Oxygen, carbon dioxide, and water
What three substances are exchanged in the alveoli?
It passes from the blood through the thin capillary wall and the wall of the alveolus, into the alveolus. It is then exhaled and released into the environment.
What happens to the carbon dioxide in the blood when it flows through the capillaries in the alveoli?