In the skeletal system, bones protect vital organs. The cranium, and thoracic cavity, as well as many others. The bones contain calcium, and other minerals needed by the body. Bone marrow contains red blood cells, lymphocytes, and other immune fighting cells. The muscular system assists in homeostasis in many ways. The heart supplies blood and oxygen, and other nutrients to the body. Muscles protect organs and tissues. Your muscles contract when you are cold, to increase your body
In the skeletal system, bones protect vital organs. The cranium, and thoracic cavity, as well as many others. The bones contain calcium, and other minerals needed by the body. Bone marrow contains red blood cells, lymphocytes, and other immune fighting cells. The muscular system assists in homeostasis in many ways. The heart supplies blood and oxygen, and other nutrients to the body. Muscles protect organs and tissues. Your muscles contract when you are cold, to increase your body