Impaired pedestrians are often seen on roads at night.
Well here is why I think girls cramp on their period because their endometrial lining is thinning and that is why there is blood. Menstrual cramps are called dysmenorrhea. The cramps are caused by contractions in the uterus. The uterus is a hallow, pear-shaped organ that the baby grows in. If the uterus contracts too strongly it can press against the blood vessels cutting off supply of oxygen to the mussel tissue of the uterus. Pain results when a part of a muscle briefly loses its supply of oxygen.
<h3><u>Full Question:</u></h3>
A nursing instructor asks a nursing student to describe the structure and function of the coronary arteries. Which response by the student indicates a need for further research on the anatomy and physiology of the heart?
1. "The coronary arteries branch from the aorta."
2. "The coronary arteries supply the heart muscle with blood."
3. "The left coronary artery provides blood for the left atrium and the left ventricle."
4. "The left coronary artery supplies the right atrium and right ventricle with blood."
"The left coronary artery supplies the right atrium and right ventricle with blood.""The left coronary artery supplies the right atrium and right ventricle with blood." indicates a need for further teaching on the anatomy and physiology of the heart.
<h3><u>
Explanation:</u></h3>
Heart plays a major role in the survival of humans. A muscular organ that is around the closed fist size is the heart. The heart helps in pumping blood to various human parts. When the contraction of the heart occurs, the blood will be pumped to various parts of the human body.
The deoxygenated blood is carried to the lungs where it includes oxygen and excludes carbo dioxide. This carbon dioxide is considered as the waste product obtained from metabolism. The anterior descending artery and the circumflex artery that provides blood to the left atrium and left ventricle is divided by the left coronary artery. The right atrium and the right ventricle is supplied by the right coronary artery.