Midterm (Specialized Connective Tissue - Bone Tissue) Flashcards
What are the 4 types of cells found within bone tissue
- Osteoblasts
- Osteocytes
- Osteogenic Cells
- Osteoclasts
It developed in osteoblasts
Osteogenic Cells
It’s location is in deep layers of the periosteum and the marrow
Osteogenic Cells
Bone formation
Osteoblasts
Growing portion of bone, including periosteum and endosteum
Osteoblasts
It maintain mineral concentration of matrix
Osteocytes
It’s location is entrapped in matrix
Osteocytes
Bone resorption
Osteoclasts
Bone surfaces and at sites of old, injured, or unneeded bone
Osteoclasts
This cells are undifferentiated with high mitotic activity and they are the only bone cells that divide
Osteogenic Cells
This cell is responsible for forming new bone
Osteoblasts
This cell do not divide, synthesize, and secrete the collagen matrix and calcium salts
Osteoblasts
It is the primary cell of mature bone and the most common type of bone cell
Osteocyte
Each osteocytes is located in a space called _____ and is surrounded by bone tissue
Lacuna
What are the tiny channels or tiny canals within the bone matrix
Canaliculi / canaliculus
The cell responsible for bone resorption, or breakdown
Osteoclasts
They are found on bone surfaces, are multinucleated, and originate from monocytes and macrophages, not form osteogenic Cells
Osteoclasts
It is denser, stronger of the two types of bone tissue
Compact bone
It can be found under the periosteum and in the diaphyses of long bones, where it provides support and protection.
Compact bone
The hard, dense bone composed of osteon that forms the surface layer of all mature bones and the shafts of long bones
Compact bone
The microscopic structural unit of compact bone is called
Osteon or Haversian system
Each osteon is composed of his three
- Lamellae
- Central Canal or Haversian Canal
- Osteocytes
It is concentric rings of calcified matrix
Lamellae
Running down the center of each osteon, containing blood vessels, nerves and lymphatic vessels.
Central Canal / Haversian Canal
These vessels and nerves branch off at right angles through a ______ also known as _______, to extend to te periosteum and endosteum
Perforating canal or Volkmann’s canal
It is located inside spaces called lacunae, found at the border of adjacent lamellae
Osteocytes
It contains osteocytes housed in lacunae,but they are not arranged in concentric circles
Spongy bone
The lacunae and osteocytes are found in a lattice-likd network of matrix spikes called
Trabeculae
The spaces of ______ contains red marrow, protected by the trabeculae, where hematopoiesis occurs
Spongy bone
It is a flexible connective tissue that differs from bone in several ways
Cartilage
It is the primary cell types as opposed to osteocytes
Chondrocytes
This are the first chondroblasts cells that produce the collagen extracellular matrix and then get caught in the matrix
Chondrocytes
It lies in spaces called lacunae with up to eight chondrocytes contained in each lacuna
Chondrocytes
It rely on diffusion to obtain nutrients
Chondrocytes
It is avascular, meaning there are no vessels to carry blood to cartilage tissue
Cartilage
2 components of cartilage tissue
Cartilage cells
Cartilage matrix
In cartilage cells there are 3 types:
Chondroblasts
Chondrocytes
Chondroclasts
It is made up of semi-solid ground substance which contain connective tissue fibers - collagena and elastic fibers
Cartilage matrix
Newly formed cartilage cells; responsible for secretion of cartilage matrix
Chondroblasts
These are chondroblasts that have matured; they are lodged / trapped inside the lacunae
Chondrocytes
It is responsible for resorption of cartilage
Chondroclasts
It proliferate rapidly by mitotic division and become condensed
Mesenchymal cells
It synthesis matrix and cells, and cells in the centre become chondrocytes
Chondroblasts
3 types of cartilage
- Hyaline Cartilage
- Fibrocartilage
- Elastics Cartilage
It supports and reinforces: has resilient cushioning properties; resists compressive stress
Hyaline Cartilage
It forms most of the embryonic skeleton; covers the ends of long bones in joint cavities; forms costal cartilages of the ribs; cartilage of the nose, trachea, and larynx
Hyaline Cartilage
Tensile strength with the ability to absorb compressive shock
Fibrocartilage
Intervertebral discs; pubic symphysis; discs of knee joint
Fibrocartilage
Maintains the shape of a structure while allowing great flexibility
Elastic Cartilage
It supports the external ear (pinna); epigiottie
Elastic Cartilage