How your memory work

Tuesday, June 10, 2008

Heart Attack and Stroke

Monday, December 24, 2007

Blocked Coronary Artery

Left Coronary Artery, blocked at the top, towards the left. You can see the narrowed artery when the dye is injected.

Angina

Atherosclerosis

Animation explaining the genesis of atherosclerosis in arteries .

The Thyroid Gland

Friday, December 21, 2007

The thyroid gland, situated at the front of the neck and overlying the trachea, consists of two lateral lobes and a connecting isthmus. Thyroid tissues trap iodine circulating in the blood and use it to produce the hormones thyroxine and triiodothyronine. When secreted into the bloodstream, these hormones increase the metabolic rate of all body tissues. The thyroid gland also produces the hormone calcitonin, which helps regulate the calcium content of bones.