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Chapter 38: Q. 11 (page 1120)

The cells responsible for bone resorption are ________.

  1. osteoclasts
  2. osteoblasts
  3. fibroblasts
  4. osteocytes

Short Answer

Expert verified

The correct answer is option (a).

The cells responsible for bone resorption are osteoclasts.

Step by step solution

01

 Osteoclasts 

  • The cells known as osteoclasts are responsible for breaking down bone to start the process of normal bone remodeling and for mediating bone loss in pathologic situations by escalating their bone resorption function.
  • In osteoclasts, the process of resorbing, or destroying, bone matrix is carried out. .
02

Step: 1 Explanation for Correct answer

  • Osteoclasts take responsibility for the long-term regulation of calcium in the blood homeostasis for bone resorption, which aids in bone remodeling.
  • Osteoclastic connective tissue, cartilage, or bone is decomposed by a monocyte-derived cell called an osteoclast.
  • The combining of precursor cells produces osteoclasts. Thus, the option a is correct.
03

Step: 2 Explanation for wrong answer

  • Osteoblasts are in charge of creating new bone. So, option b is wrong.
  • The fibroblast must maintain the integrity of the extracellular matrix (ECM). So, option c is wrong as well.
  • Osteoclast viability might have a big impact on bone preservation and integrity. Hence, option d is wrong too.

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Most popular questions from this chapter

The epiphyseal plate:

  1. is arranged as rods or plates
  2. contains the bone鈥檚 blood vessels and nerve fibers
  3. is responsible for the lengthwise growth of long bones
  4. synthesizes and secretes bone matrix

Which of the following statements about bone tissue is false?

  1. Compact bone tissue is made of cylindrical osteons that are aligned such that they travel the length of the bone.
  2. Haversian canals contain blood vessels only.
  3. Haversian canals contain blood vessels and nerve fibers.
  4. Spongy tissue is found on the interior of the bone, and compact bone tissue is found on the exterior.

Which of these is a facial bone?

  1. frontal
  2. occipital
  3. lacrimal
  4. temporal

How would muscle contractions be affected if ATP was completely depleted in a muscle fiber?

The movement of bone away from the midline of the body is called ________.

  1. circumduction
  2. extension
  3. adduction
  4. abduction
See all solutions

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