Answer:
Coronary arteries supply blood to the myocardium and other components of the heart. Two coronary arteries originate from the left side of the heart at the beginning (root) of the aorta, just after the aorta exits the left ventricle.
Answer:
Explanation:
When it comes to endocrine system and blood relationship, it regulates how much of a hormone is secreted. It varies from situation to situation as blood already depends on how much there are hormones in blood or concentration of any other substance in the blood. There are numerous factors that affect hormone level in blood, like stressing too much, certain diseases and infections, as well as changes in minerals and other substances in blood,
Immune system and blood are also in a very important relationship, as immune system includes white blood cells. There are also found many different substances like chemicals and proteins, like anti bodies and interferon. Some of the mentioned terms have a role to immediately protect immune system by attacking foreign things in our bodies, like bacteria, viruses, many diseases, infections and others.
D, because like the other person said it occurs due to the lack of blood flow
A hazardous material is any item or agent ( it can be biological, chemical, radioactive, and any sort of physical object ), that has the potential of harming any biological creature or the environment (by biological we mean humans, animals etc.)
Any substance that is a health hazard is a hazardous material. Here are some examples : chemicals with carcinogents, toxic agents, sensitizers etc.
