« previous next »
« previous next »
 

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Types of muscle Types of muscle
Sliding filament mechanism of muscle contraction. Sliding filament mechanism of muscle contraction.
Plant Cell Wall Formation Plant Cell Wall Formation
Assessment of Cutaneous Hypersensitivity, Lift a Fold of Skin Away from the Underlying Muscle Assessment of Cutaneous Hypersensitivity, Lift a Fold of Skin Away from the Underlying Muscle
great wall great wall
Cardiac Muscle Tissue Cardiac Muscle Tissue
Video: Tuberculosis Testing

For a complete list of videos, visit our video library