Connective Tissue
Connective tissues are found all over our bodies. Generally, they are located in blood, fat, and between muscles and bones. The matrix is the substance that surrounds the cell. Matrices can be fluid or solid, depending on where they are found. They also are found to have varying degrees of vascularity. For example, a bone would be very vascular while cartilage is avascular. Two good property the cells of connective tissue have is that they can divide and repair themselves. The functions of these tissues are: to bind structures, support, protect, serve as framework, store fat, produce blood cells and repair damage.
Cell Types
There are three major cell types of connective tissue: Fibroblasts, Macrophages,
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The proper types of connective tissue are: Loose CT or Areolar, Adipose (fat), Reticular, Dense, and Elastic. Loose or Areolar tissues are made up of mostly fibroblast cells and collagen fibers. Their matrices are fluid, and their purpose is to bind skin to structures. Areolar tissues are found between muscles and beneath the skin. Adipose tissues are made up of mostly adipocyte cells and have no fibers; they also have minimal matrix. Their functions are to store fat, insulate, and cushion. Adipose tissues are found behind the eyes and beneath the skin. Reticular tissues are made up of mostly fibroblasts and white blood cells, and they have reticular fibers. Their matrices are jelly-like. Their function is support. Reticular tissues are found in the walls of the liver and spleen and other lymphatic organs. Dense connective tissues are made up of fibroblasts and packed collagenous fibers as well as elastic fibers. Their matrices are more solid. Their function is binding. Dense connective tissues are found in tendons and ligaments. Elastic connective tissues are made up mostly of fibroblast cells and elastic and collagenous fibers. Their matrices are also jelly-like. Their function is attaching and stretching. Elastic tissues are found in airways, the heart, and large arteries.
As I mentioned before there are also three types of specialized connective tissues: Bone, Cartilage, and Blood. Bone
Most types of connective tissue contain fibrous strands of the protein collagen that add strength to connective tissue. Some examples of connective tissue include the inner layers of skin, tendons, ligaments, cartilage, areolar, adipose bone and fat tissue. In addition to these more recognizable forms of connective tissue, blood is also considered a form of connective tissue.
A ligament is a group of dense regular connective tissue made of collagenous fibres which are protected by dense connective tissue sheaths. Ligaments connect one bone to another bones to form joints. The also provide joint stability and prevent movement that might damage a joint.
• *Describe the 3 main types of cells and the 3 main types of fibers found in connective tissue? Reference Table 5.6.
Cartilage doesn’t contain any nerves or blood vessels and is surrounded by a layer of dense irregular connective tissue, the perichondrium (Marieb, 176). Bones contain various types of tissues which makes them organs. They are used for support, protection, movement, mineral storage, and blood cell formation (Marieb, 178-179).
4. Organ level- Organs are made up of different types of tissues. Organ is a discrete structure composed of at least two tissue types that performs a specific function for the body.
types of muscle tissues : skeletal, cardiac, smooth. Each of these different tissues has the ability
12. What are the 3 types of cartilage and where would you find each type?
The matrix of a tissue can be secreted by the connective tissues within the body. The functions of connective tissues are to transport materials around the body to give support to the weak areas to protect and support the body.
4) A joint united by dense fibrocartilaginous tissue that usually permits a slight degree of movement is a ________. A) suture B) syndesmosis C) symphysis D) gomphosis Answer: C Diff: 1 Page Ref: 251 5) On the basis of structural classification, which joint is fibrous connective tissue? A) symphysis B) synchondrosis C) pivot D) syndesmosis Answer: D Diff: 1 Page Ref: 249-250 6) Connective tissue sacs lined with synovial
Tissues are groups of cells, which are placed together to achieve a common function. There are four main types of tissue: Epithelial, connective, muscle and nervous. Most of these tissues are found in our bodies, however the epithelial tissue is covered all over the surfaces of the body.
The basic function of the connective tissue is to support, bind or connect all other types of tissues together in the body.Blood, cartilage, and bone are usually considered as connective tissue
The second type of tissue found in the body is connective tissue. They lie beneath the epithelial tissue helping to connect different part of the internal structure, the cells are more widely separated from each other then in epithelial tissue. The intercellular substance known as the matrix is found in considerably large amounts. Within the matrix there are usually fibres which may be a jelly like consistency or dense and rigid depending on the type, function and positioning of the tissue. Theses fibres form a supporting system for cells to attach to. The major functions of connective tissue are to transport materials, give structural support and protection. The types of connective tissue that will be explained are blood, bone, cartilage, bone, areolar tissue and adipose tissue.
There are the Smooth, the Skeletal, and the Cardiac muscular tissues. Smooth muscles are made of spindle-shaped cells.