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L6 Microscopic (Histological) Bone Tissue Structure

Description

Objective: Describe the microanatomical structure of bone tissue and explain how this reflects function
Mer Scott
Quiz by Mer Scott, updated more than 1 year ago
Mer Scott
Created by Mer Scott over 7 years ago
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Resource summary

Question 1

Question
Bone tissue is static.
Answer
  • True
  • False

Question 2

Question
Bone is made of the basic tissue known as [blank_start]connective[blank_end] tissue. There are two extracellular components: [blank_start]organic and inorganic[blank_end]. The [blank_start]organic[blank_end] component (1/3 of ECM) is mainly [blank_start]collagen[blank_end] fibres to resist [blank_start]tension[blank_end], in a base of proteoglycans which hold water volume. The [blank_start]inorganic[blank_end] component (2/3 of ECM) is what makes bone hard. It contains [blank_start]hydroxyapatite[blank_end], which resists [blank_start]compression[blank_end].
Answer
  • connective
  • organic and inorganic
  • organic
  • collagen
  • tension
  • inorganic
  • hydroxyapatite
  • compression

Question 3

Question
Which statement about the cellular components of bone is FALSE?
Answer
  • Osteoblasts destroy bone.
  • Osteoblasts become osteocytes.
  • Osteoclasts break down the ECM.

Question 4

Question
Choose the statements about the structure of compact bone which are correct.
Answer
  • The outer layer of compact bone (the periosteum) has holes in it.
  • It is made up of osteons, which are longitudinal cylinders made of lamellae.
  • Lamellae are the tubes of ECM, with collagen fibres aligned parallel to direction of growth.
  • There are no nerves, arteries, or veins in the compact bone.
  • The osteons maintain the osteocytes by providing them with nutrition.

Question 5

Question
Choose the statement about osteocytes and compact bone which is CORRECT.
Answer
  • Osteons sit within lacunae.
  • Central canals bring nutrients to osteocytes.
  • Canaliculi are smaller than central canals.

Question 6

Question
The foramen is the opening of the central canal.
Answer
  • True
  • False

Question 7

Question
Cancellous bone is trabeculous.
Answer
  • True
  • False

Question 8

Question
The cavities between trabeculae are filled with...
Answer
  • ECM.
  • Marrow.
  • Calcium.
  • Osteons.

Question 9

Question
Blood cells in the marrow feed osteocytes.
Answer
  • True
  • False
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