« previous next »
« previous next »
 

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Three routes of tissue-level transport in plants: transmembrane, symplastic, and apoplastic. Three routes of tissue-level transport in plants: transmembrane, symplastic, and apoplastic.
Sunlight on Mars is dimmer than on Earth. This photo of a Martian sunset was imaged by Mars Pathfind Sunlight on Mars is dimmer than on Earth. This photo of a Martian sunset was imaged by Mars Pathfind
Muscles of the lower extremity. Muscles of the lower extremity.
Select the Code with the Highest Level of Specificity Select the Code with the Highest Level of Specificity
4.1 Age changes in total IQ based on cross-sectional data (lower line) and longitudinal data ... 4.1 Age changes in total IQ based on cross-sectional data (lower line) and longitudinal data ...
Reconnect the lower back with the shoulder with a few deep effleurage strokes. Then place one hand ... Reconnect the lower back with the shoulder with a few deep effleurage strokes. Then place one hand ...
Video: Inflammation Animation

For a complete list of videos, visit our video library