<span>1) Which choice lists the structures adapted for permitting air flow from the external environment to the human lungs in the correct order?
</span>C) nasal cavity, pharynx, trachea, bronchi, bronchioles
<span>2) A structural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of:
</span>D) rings of cartilage
<span>3) In order for gas exchange to take place, alveoli must be closely associated with:
</span><span>A) capillaries
</span><span>
4) Deposits from cigarette smoke interfere with the normal functioning of cilia in the:
</span>A) trachea
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</span><span>5) The exchange of air between the human body and the environment is the result of coordinated contractions of the muscles of the rib cage and the:
</span>B) diaphragm
6) The site of gas exchange in humans is the:
D) alveoli
7) A disease involving the breakdown of the air sacs in the lungs is:
B) emphysema
<span>12) Which structure warms & filters air as it is inhaled?
nasal passages
Hope this helps.
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Carbohydrates contain glucose (blood sugar), the main fuel of the body. The nervous system, including the brain use only glucose for energy. Fats contain a fuel called fatty acids, and they are used by the muscles and heart.
It’s the box below the one that has the clicker on it.
I dont think this is the place to ask that. I would recommend finding a health forum to ask this on and contacting your doctor. Maybe you have a slight allergy to eggs and your body reacts with a headache. But most of us are probably not drs so we cant give you a solid answer. I do hope you figure it out though!