EVERYDAY SCIENCE

SCIENCE

SKELETAL SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The inner most part of a bone, makes blood cells.
A
Periosteum
B
Marrow
C
Spongy
D
Compact
Explanation: 

Detailed explanation-1: -Bone marrow is found in the center of most bones and has many blood vessels. There are two types of bone marrow: red and yellow. Red marrow contains blood stem cells that can become red blood cells, white blood cells, or platelets.

Detailed explanation-2: -In adult humans, bone marrow is primarily located in the ribs, vertebrae, sternum, and bones of the pelvis. Bone marrow comprises approximately 5% of total body mass in healthy adult humans, such that a man weighing 73 kg (161 lbs) will have around 3.7 kg (8 lbs) of bone marrow.

Detailed explanation-3: -Bone marrow is made of stem cells. These stem cells make red bone marrow, which creates blood cells and platelets for your blood. Yellow bone marrow consists mostly of fat and stem cells that produce bone and cartilage in your body.

Detailed explanation-4: -Blood cells are made in the bone marrow. The bone marrow is the soft, spongy material in the center of the bones. It produces about 95% of the body’s blood cells. Most of the adult body’s bone marrow is in the pelvic bones, breast bone, and the bones of the spine.

Detailed explanation-5: -Most red blood cells, platelets, and most white blood cells form in the red bone marrow.

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