The short answer is thatthey do have bone marrow, just not in every bone. Birds bones are delightfully complicated things. Not every bone in a bird's skeleton is hollow. Most of their bones do develop cavities that lesson weight, and are connected to the respiratory system. What do birds ...
Why do people need bone marrow transplants? Explain why kids have 300 bones and adults have 206 bones. Why are bird bones hollow? Why is spongy bone important? Why does the human body have two lower limb bones? Why is the skeletal system an organ system?
1. You cannot see your skeleton because it holds you up from the outside.2. Your skeleton is made of bones.3. All parts of bones are hard.4. Cartilage is harder than bone.5. Cartilage keeps some bones from rubbing against each other.选择最佳答案。1. Human skeletons have overbones!A....
How many bones in the human body and what are the names of the bones of the body? What are the bony little shelves found in the marrow cavity of long bones called? What about in flat bones? What is dense bone with few spaces called?
Cancer is a major cause of global mortality, both in affluent countries and increasingly in developing nations. Many patients with cancer experience reduced life expectancy and have metastatic disease at the time of death. However, the more precise cause
Cancer is a major cause of global mortality, both in affluent countries and increasingly in developing nations. Many patients with cancer experience reduced life expectancy and have metastatic disease at the time of death. However, the more precise cause
It has been reported that acute exposure to rhodamine B can harm the human body, and it may be a nonspecific inhibitor of GAGs synthesis; however, further clinical trials have not been conducted to verify its effect on MPS [96]. Conclusion MPS II is an X-linked recessive genetic disease ...
As such, it takes a little longer than some bones to, well, become bone. Although it doesn't show up on X-rays, your baby does in fact have kneecaps. They're just not bony kneecaps. At birth, these kneecaps are still cartilage, and remain so for a few years. So all those spil...
Bone marrow, the innermost part of your bones, where new blood cells are made Thymus, a gland behind your breastbone where special immune cells called T-cells are made Lymph nodes (glands) More than 600 small, kidney bean-shaped lymph nodes are clustered throughout your body -- under your...
Bone marrow is a soft tissue found in the spongy parts of bones such as ribs and vertebrae. The epidermis is the outermost layer of skin, and is composed of four to five layers of tissue. Both bone marrow and the epidermis play important roles in the regeneration of tissues of the body...