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Questions and Answers
What are long bones primarily used for?
What are long bones primarily used for?
- Storage of minerals
- Movement (correct)
- Shock absorption
- Protection of organs
Give two examples of long bones.
Give two examples of long bones.
Femur, tibia, humerus, ulna, radius, phalanges, fibula.
What is the shape of short bones?
What is the shape of short bones?
- Flat
- Irregular
- Long and narrow
- Cube-like (correct)
Short bones primarily serve as shock absorbers.
Short bones primarily serve as shock absorbers.
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Which of the following functions do flat bones serve?
Which of the following functions do flat bones serve?
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Name two examples of flat bones.
Name two examples of flat bones.
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What characterizes irregular bones?
What characterizes irregular bones?
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What is an example of an irregular bone?
What is an example of an irregular bone?
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What is the primary function of sesamoid bones?
What is the primary function of sesamoid bones?
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What is an example of a sesamoid bone?
What is an example of a sesamoid bone?
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Study Notes
Long Bones
- Longer than wide, primarily used for movement.
- Muscles exert force on long bones, facilitating motion.
- Examples include femur, tibia, humerus, ulna, radius, phalanges, and fibula.
Short Bones
- Cube-like structure, equal in length and width.
- Provide limited gliding motion; primarily function as shock absorbers.
- Examples include carpals (wrist bones) and tarsals (ankle bones).
Flat Bones
- Thin and broad, serve to protect vital tissues and organs.
- Offer large surface area for muscle and tendon attachment.
- Notable examples: skull (protects the brain), sternum (protects the heart), ribs (protect lungs).
Irregular Bones
- Unique shapes with various protrusions.
- Protrusions serve as attachment points for muscles.
- Key example: vertebrae, which support the spine and protect the spinal cord.
Sesamoid Bones
- Small bones typically embedded within tendons.
- Protect tendons from friction against bony surfaces.
- Primary example: patella (kneecap), which aids in knee movement.
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