Questions and Answers
What is bone (osseous tissue) primarily responsible for?
Support, protection, and storing calcium and fats.
What are the two types of bone tissues?
Compact and spongy.
What characterizes compact bone?
It is a dense, hard type of bone constructed from osteons.
What are osteoblasts?
Signup and view all the answers
Osteocytes lie between the hard layers of the ______ in little spaces called lacunae.
Signup and view all the answers
What are the rings in the osteon called?
Signup and view all the answers
What do central canals contain?
Signup and view all the answers
What are lacunae?
Signup and view all the answers
What is endosteum?
Signup and view all the answers
What is a perforating canal?
Signup and view all the answers
What is an osteocyte in lacuna?
Signup and view all the answers
What is an osteon?
Signup and view all the answers
What is a lamella?
Signup and view all the answers
What is periosteum?
Signup and view all the answers
What are Sharpey's fibers?
Signup and view all the answers
What is a central canal?
Signup and view all the answers
What are canaliculi?
Signup and view all the answers
What are lacunae?
Signup and view all the answers
What is an osteocyte in lacuna?
Signup and view all the answers
What is an osteon?
Signup and view all the answers
Study Notes
Bone Tissue Overview
- Bone tissue, also known as osseous tissue, primarily functions to support, protect, and store important substances like calcium and fats.
Types of Bone Tissues
- There are two primary types of bone tissue: compact bone and spongy bone.
Compact Bone
- Compact bone is a dense and hard type of bone structured from microscopic units called osteons.
- It forms the diaphysis (shaft) of long bones and the outer shell of the epiphyses and other bones.
Bone Cells
- Osteoblasts are specialized cells responsible for forming new bone.
- Osteocytes reside in tiny spaces called lacunae located between the concentric rings of lamellae.
Lamellae
- Lamellae are the layers that compose osteons, resembling rings in a tree.
- They provide structural support and house osteocytes within their lacunae.
Central Canals
- Central canals run parallel to the length of the bone, containing vital blood vessels and nerves.
Lacunae
- Lacunae are small cavities between lamellae where osteocytes are found, playing a crucial role in bone maintenance.
Endosteum
- The endosteum is a membrane that lines the inner surface of bones, contributing to bone growth and repair.
Perforating Canal
- Perforating (or Volkmann’s) canals connect central canals and are essential for blood vessel and nerve communication across different regions of bone.
Osteon
- An osteon, or Haversian system, is the fundamental structural unit of compact bone, consisting of a central canal surrounded by concentric lamellae.
Canaliculi
- Canaliculi are tiny channels that allow communication between osteocytes and facilitate nutrient and waste exchange.
Periosteum
- The periosteum is a dense layer of connective tissue that envelops bones and aids in their protection and nourishment.
Sharpey's Fibers
- Sharpey's fibers are collagen fibers that anchor the periosteum to the underlying bone, ensuring stability.
Osteocyte in Lacuna
- Osteocytes within lacunae are essential for monitoring and maintaining bone matrix health.
Summary
- Understanding these components is crucial for comprehending bone structure and function, highlighting how bones serve as dynamic organs, critical for overall health and mobility.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of bone tissue with these flashcards. Learn about the functions of osseous tissue, the types of bone structures, and the specifics of compact and spongy bone. Perfect for anatomy students looking to reinforce their understanding of skeletal biology.
