It is characterized by a prominent extracellular matrix consisting of various proportions of connective tissue fibers embedded in a gel-like matrix. Chondrocytes are located within lacunae in the matrix that they have built around themselves.
Which tissue has lacunae calcium salts and osteocytes?
Elastic cartilage can stretch and recoil to its original shape because of its high content of elastic fibers. The matrix contains very few blood vessels. Bones are made of a rigid, mineralized matrix containing calcium salts, crystals, and osteocytes lodged in lacunae. Bone tissue is highly vascularized.
Are lacunae found in cartilage?
Cartilage. The cartilage cells or chondrocytes are contained in cavities in the matrix, called cartilage lacunae; around these, the matrix is arranged in concentric lines as if it had been formed in successive portions around the cartilage cells.
What are lacunae for?
Lacunae – Function
The primary function of lacuna in bone or cartilage is to provide housing to the cells it contains and keeps the enclosed cells alive and functional. In bones, lacunae encase osteocytes; in cartilage, lacunae enclose chondrocytes.
What heals faster bone or cartilage?
Chondrocytes rely on diffusion to obtain nutrients as, unlike bone, cartilage is avascular, meaning there are no vessels to carry blood to cartilage tissue. This lack of blood supply causes cartilage to heal very slowly compared with bone.
What are the 4 main types of connective tissues?
Connective Tissue
- Loose Connective Tissue.
- Dense Connective Tissue.
- Cartilage.
- Bone.
- Blood.
What tissue has calcium salts?
Supportive connective tissue—bone and cartilage—provide structure and strength to the body and protect soft tissues. A few distinct cell types and densely packed fibers in a matrix characterize these tissues. In bone, the matrix is rigid and described as calcified because of the deposited calcium salts.
Which tissue type arises from all three?
Note that epithelial tissue originates in all three layers, whereas nervous tissue derives primarily from the ectoderm and muscle tissue from mesoderm.
Is nervous tissue a connective tissue?
Connective tissue is one of the four basic types of animal tissue, along with epithelial tissue, muscle tissue, and nervous tissue. It develops from the mesoderm. Connective tissue is found in between other tissues everywhere in the body, including the nervous system.
What is another name for osseous tissue?
Osseous tissues are of two major types: the compact bone and the spongy bone tissues. … Synonym: bone tissue. See also: skeletal system, skeleton, bone.
What is an example of loose connective tissue?
Examples of loose connective tissue include areolar tissue and reticular connective tissue.
What statement best describes connective tissue?
The correct answer is (a) usually contains a large amount of matrix.
What is bone tissue composed of?
Bone is made up of compact tissue (the hard, outer layer) and cancellous tissue (the spongy, inner layer that contains red marrow). Bone tissue is maintained by bone-forming cells called osteoblasts and cells that break down bone called osteoclasts.
What are found in lacunae of bone quizlet?
An osteocyte is a bone cell found in lacunae. The vertical canal in an osteon is the central canal.
Which blood is called fluid connective tissue?
The blood has a fluid matrix plasma due to which it is termed as the fluid connective tissue.
Which is not a type of connective tissue?
Explanation: Skin is composed of epithelial cells, and is therefore not an example of connective tissue. … The major types of connective tissue include bone, adipose, blood, and cartilage.
Which is the liquid connective tissue?
Blood is a fluid connective tissue, a variety of specialized cells that circulate in a watery fluid containing salts, nutrients, and dissolved proteins in a liquid extracellular matrix.
What are the 7 major types of connective tissue?
These are:
- Areolar Connective Tissue.
- Adipose Tissue.
- Dense Irregular Tissue.
- Dense Regular Tissue.
- Cartilages.
- Bones.
- Blood.
What is the most common connective tissue disorder?
Rheumatoid Arthritis (RA): Rheumatoid arthritis is one of the most common connective tissue diseases and can be inherited. RA is an autoimmune disease, meaning the immune system attacks its own body. In this systemic disorder, immune cells attack and inflame the membrane around joints.
What are the 10 types of connective tissue?
The following points highlight the ten main varieties of connective tissues of human body. They are: 1. Areolar Tissue 2. Adipose Tissue 3.
…
Reticulo-Endothelial Tissue.
- Areolar Tissue: …
- Adipose Tissue (Fig. …
- White Fibrous Tissue (Fig. …
- Yellow Elastic Tissue (Fig. …
- Reticular Tissue (Fig. …
- Blood and Haemopoietic Tissue:
What’s the slowest healing body part?
Cartilage is avascular, meaning that it has no blood supply. The lack of blood circulation in cartilage means that it is a very slow-healing type of tissue.
What bone takes the longest to heal?
The femur — your thigh bone — is the largest and strongest bone in your body. When the femur breaks, it takes a long time to heal. Breaking your femur can make everyday tasks much more difficult because it’s one of the main bones used to walk.
What body part heals the quickest?
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air. The cornea is the fastest healing tissue in the human body, thus, most corneal abrasions will heal within 24-36 hours.