« previous next »
« previous next »
 

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Flexion and Extension Flexion–Bending a limb. Extension–Straightening a flexed limb. Flexion and Extension Flexion–Bending a limb. Extension–Straightening a flexed limb.
Index card tickler file. Index card tickler file.
An additional extension may be necessary to hoist a truck or van equipped with running boards to ... An additional extension may be necessary to hoist a truck or van equipped with running boards to ...
A typical two-line cleaning machine hookup, showing an extension hose that can be used to squirt a ... A typical two-line cleaning machine hookup, showing an extension hose that can be used to squirt a ...
Flexion and extension of the elbow Flexion and extension of the elbow
Penicillin saved the lives of many soldiers in World War II Penicillin saved the lives of many soldiers in World War II
Video: Carbon fixing adaptations Animation

For a complete list of videos, visit our video library