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Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Sagittal section of upper respiratory system illustrating the internal anatomy of the nasal cavity, Sagittal section of upper respiratory system illustrating the internal anatomy of the nasal cavity,
Endotracheal intubation. First, a lighted scope is used to identify the trachea from the esophagus. Endotracheal intubation. First, a lighted scope is used to identify the trachea from the esophagus.
Nose, nasal cavity, and pharynx: (A) nasal cartilages and external structure; (B) meatus and positio Nose, nasal cavity, and pharynx: (A) nasal cartilages and external structure; (B) meatus and positio
Oral cavity and pharynx Oral cavity and pharynx
Overview: Nose, Pharynx, Larynx, and Trachea Overview: Nose, Pharynx, Larynx, and Trachea
Pharynx Pharynx
Video: The Nerve Impulse

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