« previous next »
« previous next »
 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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.

Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
Brown teeth Brown teeth
EEG recordings showing the differences between normal, absence seizure, and generalized tonic–clonic EEG recordings showing the differences between normal, absence seizure, and generalized tonic–clonic
Deciduous and permanent teeth Deciduous and permanent teeth
The Means and Extremes of a Proportion The Means and Extremes of a Proportion
Teeth Teeth
Video: Resting membrane potential - electrical polarity and maintenance requirements

For a complete list of videos, visit our video library