« previous next »
« previous next »
 

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Pelvic inflammatory disease. Chlamydia or gonorrhea spreads up the vagina into the uterus and then t Pelvic inflammatory disease. Chlamydia or gonorrhea spreads up the vagina into the uterus and then t
Normal defese mechanisms against infection Normal defese mechanisms against infection
A medical assistant listening to the patient and physician discuss the patient's care. A medical assistant listening to the patient and physician discuss the patient's care.
A medical assistant labels the allergens for a patch test. A medical assistant labels the allergens for a patch test.
Medical assistant shaking hands with the interviewer at the close of the interview. Medical assistant shaking hands with the interviewer at the close of the interview.
Partial map of disease genes on human chromosome 21 Partial map of disease genes on human chromosome 21
Video: Neural Reflex Arc Animation

For a complete list of videos, visit our video library