I. What is the skeletal system? A. All the bones in the body B. All the muscles

Question

I. What is the skeletal system? A. All the bones in the body B. All the muscles and tendons C. All the body's organs, both soft and hard tissue D. All the bones in the body and the tissues that connect them Which of the following statements is INCORRECT A. Bone is where most blood cells are made. B. Bone serves as a storehouse for various minerals. C. Bone is a dry and non-living supporting structure. D. Bone protects and supports the body and its organs. 2. 3. What makes bones so strong? A. Bone protects and supports the body and its organs. B. Sillica C. Cartilage D. Calcium and phosphorus E. Blood and marrow The hollow space in the middle of bones is filled with… A. Air B. Blood C. Bone cells 4. D. Bone marrow 5. What is the difference between compact bone and spongy bone A. They have different bone marrow. B. They are made of different materials. They have different sizes of bone cells. They have different arrangement of bone cells. C. D. 5. What is a joint? A. A hinge B. A ball and socket C. The place where two bones are joined D. The place where tendons are fastened together

Explanation / Answer

1-D

2-C

3-D

4-bone marrow.

5-D

Compact bones are made up of osteons. Osteons are also called Haversian systems. These osteons make the structure of compact bones. These rod-like units form the outer layer of the compact bones at the long bone.These osteons also contain Haversian canals. These canals contain and carry blood vessels, lymphatic vessels, and branches of the nerves.
Spongy bones are made up trabeculae. These trabeculae look like thin threads. These are not as heavy as the osteons of the compact bones. The formation of trabeculae always depends on which of these bones were mechanically tensioned.
6-C

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