Types of Bones and Bone Remodeling Process
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Questions and Answers

What are the five types of bones?

Long bones, short bones, flat bones, sesamoid bones, irregular bones

What are the defining characteristics of long bones?

Longer than they are wide, have a shaft (diaphysis) and bulky ends (epiphysis) with a growth plate (epiphyseal plate) where growth occurs

Where are short bones typically found?

Ankles and wrists

What is the function of flat bones?

<p>Protection</p> Signup and view all the answers

What is the role of sesamoid bones?

<p>Reduce friction and protect</p> Signup and view all the answers

What occurs during the activation stage of bone remodeling?

<p>Damage occurs, signal is sent, osteoclasts arrive</p> Signup and view all the answers

What is the outcome of the mineralization stage of bone remodeling?

<p>Osteoblasts fill in the cavity with a mineralized matrix, making new bone strong and durable</p> Signup and view all the answers

How does exercise contribute to bone strength?

<p>Causes micro fractures which are then healed, making bones stronger</p> Signup and view all the answers

Which bone is considered the longest and strongest in the human body?

<p>Femur</p> Signup and view all the answers

Which part of the skeleton is primarily responsible for protection and is comprised of approximately 80 fused bones?

<p>Axial skeleton</p> Signup and view all the answers

What is the main function of the clavicle in the human body?

<p>Part of the shoulder girdle</p> Signup and view all the answers

Which bone is sometimes referred to as the "funny bone"?

<p>Humerus</p> Signup and view all the answers

Where are the carpals, metacarpals, and phalanges located in the human body?

<p>Hand</p> Signup and view all the answers

What are the bones that protect the reproductive organs in the human body?

<p>Pelvis</p> Signup and view all the answers

What is the function of the axial skeleton in the human body?

<p>Protection</p> Signup and view all the answers

How many bones make up the vertebral column?

<p>26</p> Signup and view all the answers

What are the bones that form the shoulder girdle?

<p>Clavicle</p> Signup and view all the answers

Where are the sacrum and coccyx classified in terms of the vertebral column?

<p>Axial skeleton</p> Signup and view all the answers

What is the composition of the hand in terms of bones?

<p>Carpals, metacarpals, and phalanges</p> Signup and view all the answers

Which bone is known as the thigh bone in the human body?

<p>Femur</p> Signup and view all the answers

Study Notes

  • Five types of bones: long bones, short bones, flat bones, sesamoid bones, irregular bones
  • Long bones: longer than they are wide, have a shaft (diaphysis) and bulky ends (epiphysis) with a growth plate (epiphyseal plate) where growth occurs
  • Short bones: roughly cubic shaped, function as weight-bearers, found in ankles and wrists
  • Flat bones: thin and flattened, function for protection, examples include the cranium and sternum
  • Sesamoid bones: embedded in tendons, reduce friction and protect, example is the patella in the knee
  • Irregular bones: do not fit into other categories, individualized functions, example is a vertebra
  • Bone remodeling: occurs when bones are placed under stress, causes micro fractures, healed by the body, bones become stronger
  • Exercise causes micro fractures which are then healed, making bones stronger
  • Five stages of bone remodeling: activation, resorption, reversal, mineralization, quiescence
  • Activation: damage occurs, signal is sent, osteoclasts arrive
  • Resorption: osteoclasts dig a cavity, break down old bone
  • Reversal: osteoclasts die, debris is removed, osteoblasts arrive
  • Mineralization: osteoblasts fill in the cavity with a mineralized matrix, making new bone strong and durable
  • Quiescence: bone is healed and stronger than before.

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Description

This quiz covers the five types of bones: long, short, flat, sesamoid, and irregular, along with the bone remodeling process. It includes information about bone structure, function, and the stages of bone remodeling.

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