1. The skull bones protect the brain from injury, the vertebra surrounds the spinal cord and the rib cage helps protect important organs of the thorax. Some examples are: the bones in our skull protect the brain and the ribs protect the heart and lungs. The bones make a structure that supports our body and holds and protects soft organs. Some examples are: the bones of the lower limbs provide support to the body trunk when we stand, and the rib cage supports the thoracic wall.
2. The skeletal system is a backup calcium storage area in case calcium blood levels dip too low. The minerals flow into the bloodstream a needed for distribution to all parts of the body. Mineralized bones store growth factors like insulin. Some minerals that bones store are calcium, phosphorus, and magnesium. Long bones contain yellow marrow in the hollow cavities which is the last energy device in a starvation situation.
3. The …show more content…
The bone marrow consists of red marrow and yeloow marrow. The red marrow makes blood and the yellow marrow stores fat. The bone marrows purpose it to make blood cells.
9. Calcium moves into bone osteoblast cells to create new bone and osteoclasts break down bone. The two hormones that are involved are parathyroid and calcitonin which helps control blood calcium levels. Calcitonin is released by the thyroid gland holds back osteoclasts and makes osteoblast, which decreases blood calcium levels.
10. There are four stages of bone repair after a fracture, they are:
1. The formation of hematoma happens when the wall of a blood vessel wall is damaged and blood went into tissues where it shouldn’t be.
2. Granulation tissue is when fibrous tissue is made by fibroblasts ad infiltrated by capillaries.
3. The callus formation happens when fibrocartilage, soft callus is converted into hard callus of bone in six weeks.
4. Bone remodeling happens when callus is remodeled by osteoclasts and osteoblasts. It happens over six months as spongy bone is replaced with compact
2. The skeletal system is a backup calcium storage area in case calcium blood levels dip too low. The minerals flow into the bloodstream a needed for distribution to all parts of the body. Mineralized bones store growth factors like insulin. Some minerals that bones store are calcium, phosphorus, and magnesium. Long bones contain yellow marrow in the hollow cavities which is the last energy device in a starvation situation.
3. The …show more content…
The bone marrow consists of red marrow and yeloow marrow. The red marrow makes blood and the yellow marrow stores fat. The bone marrows purpose it to make blood cells.
9. Calcium moves into bone osteoblast cells to create new bone and osteoclasts break down bone. The two hormones that are involved are parathyroid and calcitonin which helps control blood calcium levels. Calcitonin is released by the thyroid gland holds back osteoclasts and makes osteoblast, which decreases blood calcium levels.
10. There are four stages of bone repair after a fracture, they are:
1. The formation of hematoma happens when the wall of a blood vessel wall is damaged and blood went into tissues where it shouldn’t be.
2. Granulation tissue is when fibrous tissue is made by fibroblasts ad infiltrated by capillaries.
3. The callus formation happens when fibrocartilage, soft callus is converted into hard callus of bone in six weeks.
4. Bone remodeling happens when callus is remodeled by osteoclasts and osteoblasts. It happens over six months as spongy bone is replaced with compact