Back to: PRIMARY SEVEN P7 SCIENCE TOPICAL QUESTIONS AND ANSWERS
Bones
Qn. What is a bone?
- A bone is the hardest tissue found in the body of an animal.
Qn. Identify the different items / substance contained in bones. - Blood
- Blood cells
- Nerves
Qn. Mention the mineral salts that make bones and teeth strong - Calcium
- Phosphorous
Cartilage
Qn. What is a cartilage? - A cartilage is a connective tissue softer than a bone.
Bone marrow
Qn. What is a bone marrow?
- A bone marrow is a soft tissue found in a bone.
Qn. Identify any parts of the body where we find a cartilage. - Pinna of the ear.
- At the end of the nose
- At the end of every bone.
Qn. State the functions of cartilages in the body. - A cartilage reduces friction at a joint.
- A cartilage cushions bones.
Types / classes / groups of bones
Qn. Mention the different types of bones - Long bones
- Short bones
- Flat bones • Irregular bones
a) Long bones - Long bones are the bones found mainly in the limbs.
Qn. Give the different examples of long bones - Tibia
- Femur
- Fibula
- Humerus
- Radius
- Ulna
Qn. Identify the longest and strongest bone in the body.
- Femur
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