Anatomy STudy Guide
Skeletal System Study Guide – Use the lecture folder to help you answer these questions. The more detail you add, the better prepared for the test you will be.
1. What are the functions of the skeleton?
The five functions of the skeleton are: protecting the vital body organs, giving shape to the body and providing support to body organs and holding the body upright. Others are facilitating movement and producing of blood. The latter function is done in the bone marrow.
2. What is the difference between osteoclasts and osteoblasts?
Osteoblasts create bone, while Osteoclasts break them down. The osteoblast is found on the surfaces of bone and is involved with bone deposition. The osteoclast is usually found in depressions (Howship's lacunae) at the surfaces of bony tissue and is associated with bone resorption; it is a large multi-nucleated cell derived from blood monocytes
3. How many bones do we have in our body?
300 bones at birth and by the time adulthood is reached, some bones have fused together to give a total of 206 bones in the body.
4. What do bones need in order to be healthy?
Healthy bones require calcium and vitamin D to help absorb calcium. They also need exercise.
5. Differentiate between tendons, ligaments and joints.
A tendon is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension. A joint is the location at which two or more bones make contact. A ligament is a short band of tough fibrous dense regular connective tissue composed mainly of long, stringy collagen fibers. Ligaments connect bones to other bones to form a joint.
6. What are the 2 main divisions of the skeletal system? Differentiate between the 2 and what bones are within each. The two are Axial Skeleton and Perpendicular Skeleton. Axial Skeleton contains the skull, hyoid bone, auditory ossicles, vertebral column, sternum bone, and ribs. The Perpendicular skeleton contains the shoulder girdles,
1. What are the functions of the skeleton?
The five functions of the skeleton are: protecting the vital body organs, giving shape to the body and providing support to body organs and holding the body upright. Others are facilitating movement and producing of blood. The latter function is done in the bone marrow.
2. What is the difference between osteoclasts and osteoblasts?
Osteoblasts create bone, while Osteoclasts break them down. The osteoblast is found on the surfaces of bone and is involved with bone deposition. The osteoclast is usually found in depressions (Howship's lacunae) at the surfaces of bony tissue and is associated with bone resorption; it is a large multi-nucleated cell derived from blood monocytes
3. How many bones do we have in our body?
300 bones at birth and by the time adulthood is reached, some bones have fused together to give a total of 206 bones in the body.
4. What do bones need in order to be healthy?
Healthy bones require calcium and vitamin D to help absorb calcium. They also need exercise.
5. Differentiate between tendons, ligaments and joints.
A tendon is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension. A joint is the location at which two or more bones make contact. A ligament is a short band of tough fibrous dense regular connective tissue composed mainly of long, stringy collagen fibers. Ligaments connect bones to other bones to form a joint.
6. What are the 2 main divisions of the skeletal system? Differentiate between the 2 and what bones are within each. The two are Axial Skeleton and Perpendicular Skeleton. Axial Skeleton contains the skull, hyoid bone, auditory ossicles, vertebral column, sternum bone, and ribs. The Perpendicular skeleton contains the shoulder girdles,