What is the function of lacuna in hyaline cartilage?
What is the function of lacuna in hyaline cartilage?
Chondrocytes are found in lacunae, which are small cavities that surround the chondrocytes. A primary lacuna is a lacuna containing one chondrocyte. When that cell divides, the daughter cells form new boundary layers called secondary lacunae, and the group of cells with lacunae is called a cell nest.
What is bone lacuna?
Nucleated bone cells and their processes, contained in the bone lacunæ and their canaliculi respectively. From a section through the vertebra of an adult mouse. Anatomical terminology. In histology, a lacuna is a small space, containing an osteocyte in bone, or chondrocyte in cartilage.
What is made of hyaline cartilage?
Hyaline cartilage exists on the sternal ends of the ribs, in the larynx, trachea, and bronchi, and on the articulating surfaces of bones. It gives the structures a definite but pliable form. The presence of collagen fibres makes such structures and joints strong, but with limited mobility and flexibility.
What is an example of hyaline cartilage?
Hyaline cartilage locations include around bones of free-moving joints. This is known as articular cartilage. Another example of hyaline cartilage is the tissue found in the walls of the respiratory tract. This includes the bronchi, the nose, the rings of the trachea, and the tips of the ribs.
What is the function of osteoblast?
Osteoblasts are specialized mesenchymal cells that synthesize bone matrix and coordinate the mineralization of the skeleton. These cells work in harmony with osteoclasts, which resorb bone, in a continuous cycle that occurs throughout life.
Which is an example of hyaline cartilage?
Where is elastic cartilage found in the body?
larynx
Elastic cartilage provides support with moderate elasticity. It is found mainly in the larynx, the external part of the ear (pinna), and the tube leading from the middle part of the ear to the throat (eustachian or auditory tube).
What is the function of the bone lacunae?
What is the function of bone lacunae? Bone lacuna is a small cavity within the bone matrix. These are situated within the lamellae and lacunae are connected to each other by small canals that are known as canaliculi. Become a Study.com member to unlock this answer!
Which is the best definition of the word lacuna?
Definition. noun, plural: lacunae. ( histology) The small cavity containing an osteocyte in bone, or a chondrocyte in cartilage; a minute cavity containing a nucleate cell. ( botany) An air space in plant tissues. ( general) A small depression, empty space, or cavity. lacunar ( adjective) Of, pertaining to, or relating to a lacuna. Supplement.
What is the definition of a resorption lacuna?
resorption lacuna a pit or concavity found in bones undergoing resorption, frequently containing osteoclasts. Similar lacunae also may be found in eroding surfaces of cementum. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved. 1.
Where are lacunae found in the Eustachian tube?
lacuna pharyn´gis a depression of the pharyngeal end of the eustachian tube. resorption lacuna a pit or concavity found in bones undergoing resorption, frequently containing osteoclasts. Similar lacunae also may be found in eroding surfaces of cementum.
What is the function of the lacunae?
Lacunae are the microscopic tubes which carry osteocytes, nutrients, and waste to and from the bone in the same way blood vessels transfer nutrients and waste through the body. A bone canaliculus acts as a gutter for periosteocytic fluid, which is made up of materials too large to be filtered through thick bone tissue,…
What is found in a lacuna?
In histology, a lacuna is a small space containing an osteocyte in bone or chondrocyte in cartilage.
What is lacunae in anatomy?
In histology or anatomy, lacuna (plural: lacunae) refers to the small cavity in the substance of the bone containing an osteocyte. Osteocyte is an entrapped osteoblast in the matrix.
What is the noun for Lacuna?
Noun: 1. lacuna – a blank gap or missing part. blank. crack, gap – a narrow opening; “he opened the window a crack” 2. lacuna – an ornamental sunken panel in a ceiling or dome. caisson, coffer. panel – sheet that forms a distinct (usually flat and rectangular) section or component of something.