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.
Some are tiny but still very important. Letâs look at four of the smallest parts of the human body: the smallest muscle, the smallest bone, the smallest organ, and the smallest blood vessel.tâs not an organ like those in the abdominal cavity. Itâs the human bodyâs smallest endocrine gland, and it produces melatonin, a hormone (derived from serotonin) that affects how we sleep, wake up, and react to seasonal changes. Itâs called pineal because itâs shaped like a little pinecone.