Multiple Choice
Which of the following is classified as a short bone?
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6. Bones & Skeletal Tissue
Gross Anatomy of Bone: Short, Flat, and Irregular Bones
3:54 minutesProblem 7b
Textbook Question
Classify the bones in the following diagram according to their shape.
b. _____
Verified step by step guidance1
Identify the bone labeled (b) in the diagram, which is the Parietal bone, part of the skull.
Recall the classification of bones by shape: long bones, short bones, flat bones, irregular bones, and sesamoid bones.
Understand that flat bones are typically thin, flattened, and often curved, providing protection and broad surfaces for muscle attachment.
Recognize that the Parietal bone is a flat bone because it is part of the cranial bones that protect the brain and have a flat, curved shape.
Therefore, classify the Parietal bone (b) as a flat bone.
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3mKey Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Bone Classification by Shape
Bones are classified into four main shapes: long, short, flat, and irregular. This classification helps in understanding their function and location in the body. For example, long bones are longer than they are wide and primarily support weight and facilitate movement.
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Structural Joint Classifications
Long Bones
Long bones, such as the humerus, are characterized by a shaft and two ends. They are primarily found in the limbs and are crucial for movement and support. Their length exceeds their width, and they contain a medullary cavity filled with bone marrow.
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6:19Overview of Long Bones
Flat Bones
Flat bones, like the parietal bone of the skull, are thin, flattened, and usually curved. They provide protection to internal organs and offer a broad surface for muscle attachment. These bones are important in protecting the brain and forming the rib cage.
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2:58Short, Flat, and Irregular Bones
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