Coronary artery disease, also called coronary heart disease, or simply, heart disease, affects millions of Americans. This serious condition is a result of plaque buildup in your arteries. What Is Coronary Artery Disease? The arteries, which start out smooth and elastic, get plaque on their inner walls, which can make them more rigid and narrowed. This restricts blood flow to your heart muscle, which can then become starved of oxygen.
The least sensitive skin on the human body is found in the heelarea. This is because there are very little nerves in the heel to feelthings. If there were too many nerves in oâ¦ur heels then walkingwould be far too painful. The second least sensitive is the elbow.
Hearing and sight are permenantly damaged, but scent can regenerate. Touch is not handled by cranial nerves, but rather by skin sensors which feed into the spinal cord and then run up into the brain. The distribution of skin nerves is uneven in most animals. In humans, touch is most sensitive in the lips, fingertips and genitals. Taste is probably handled by the facial nerve. It emerges directly from the brain and serves the area around the mouth. Taste buds are nerve endings and humans have three kinds. One responds to sugars and is located in the tip of the tongue.