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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 muscle relaxes if no new nerve signal arrives. However the neurotransmitter from the previous stimulation is still present in the synapse. The activity of ________ helps to remove this neurotransmitter.

  1. myosin
  2. action potential
  3. tropomyosin
  4. acetylcholinesterase

Botulinum toxin causes flaccid paralysis of the muscles, and is used for cosmetic purposes under the name Botox. Which of the following is the most likely mechanism of action of Botox?

  1. Botox decreases the production of acetylcholinesterase.
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The pectoral girdle consists of the:

a. clavicle and sternum

b. sternum and scapula

c. clavicle and scapula

d. clavicle and coccyx

What factors contribute to the amount of tension produced in an individual muscle fiber?

All of the following are groups of vertebrae except ________, which is a curvature.

  1. thoracic
  2. cervical
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