1. Which of the following is not a component of the skeletal system. A. Bones B.
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Question
1. Which of the following is not a component of the skeletal system. A. Bones B. Ligaments C. Cartila D. Tendons E. Muscles 2. This is the type of cartilage found in growth plates. A. Fibrocartilage B. Hyaline Cartilage C. Tendons D. Ligaments E. Bone bone composes 20% of bone mass A. Compact B. Irregular C. Regular D. Spongy E. Dense 4. The fingers are considered what type of bone? A. Long B. Short C. Irregular D. Curved E. Flat 5. This allows for lengthwise growth in children. A. Medullary cavity B. Diaphysis C. Epiphysis D. Epiphyseal plate E. Metaphysis 6. Which of the following has blood cell forming cells? A. Compact bone B. Spongy bone C. Red bone marrow D. Blood vessels E. Yellow bone marrow 7. In adults, bone marrow is usually taken from what bone? A. Femur B. Os coxae C. Humerus D. Patella E. ClavicleExplanation / Answer
1) Muscle is not the component of skeletal system.
The skeletal system supports and protects the body while giving it shape and form. This system is composed of connective tissue including bone, cartilage, tendons and ligaments. The skeletal system stores minerals, fats and produce blood cells. Another major role of skeletal system is to provide mobility.
2) Hyaline Cartilage is the type of cartilage found in growth plates.
Hyaline Cartilage is a type of connective tissue found in areas such as nose, ears and trachea of the human body. The word hyaline means "glass-like", and hyaline cartilage is a glossy, greyish white tissue with a uniform appearance. Hyaline cartilage provides support and flexibility to different parts of the body. When hyaline cartilage is on the articular surfaces of the bones, it is called articular cartilage. Articular cartilage function as a shock absorber and also reduces friction between bones where they meet at joints.
3) Spongy bone composes 20% of bone mass.
It is found in most areas of bone that are not subject to great mechanical stress. It is the major component of the ribs, the shoulder blade, the flat bone of the skull and a variety of short, flat bones elsewhere in the skeleton.
4) The fingers are considered as Short type of bone.
Short bones are defined as being approximately as they are long and have a primary function of providing support and stability with little movements. They consist of only a thin layer of compact, hard bone with cancellous bone on the inside along with relatively large amount of bone marrow.
5) Epiphyseal plate allows for lengthwise growth in children.
The epiphyseal plate is a hyaline cartilage plate in the metaphysis at each end of long bone. It is the part of long bone where new bone growth takes place i.e., the whole bone is alive, with maintainence remodeling throughout its existing bone tissue, but the epiphyseal plate is the place where the long bones grows longer ( adds length).
6) Red bone marrow has the blood cell forming cells.
Not only does red bone marrow produces blood cells, but it also helps to remove old cells from circulation. Red marrow contains hamatopoietic stem cells that produces two types of stem cells; myeloid stem cells and lymphoid stem cells. These cells develops into RBC, WBC and platelets.
7) In adults, bone marrow is usually taken from Os coxae.
Purpose of bone marrow aspiration :
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