Tissue Types
( epithelial, connective, muscular, nervous)
Connective Tissue
Connective tissue connects, binds and supports structures, such as tendons and ligaments. It wraps around organs to protect and cushion them. The extracellular matrix can bear weight, stretch and take abuse. It insulates and fills space as well as stores fat. Blood functions to transport nutrients and other substances throughout the body. There are different types of connective tissue: bone, cartilage, muslce, nervous, and blood. You have dense regular and dense irregular connective tissue. Dense regular connective tissue are regularly arranged bundles packed with fibers running the same way in one direction. Dense irregular connective tissue is irregularly arranged bundles with fibers running all directions. There are also three types of loose connective tissue. Areolar connective tissue has a loose arrangement of cells and fibers. It cushions organs and holds them together, and is mostly empty space. Adipose tissue appears empty when you look at it under a microscope because oil fills most of enlarged nucleus. This tissue functions to protect and insulate. Reticular connective tissue has a delicate network of fibers and cells. It provides internal supporting framework for lymphoid organs. Therefore, connective tissue is found throughout the body. It is everywhere.
Dense Regular Connective Tissue
Dense Regular Connective Tissue is located in tendons and ligaments. This type of tissue is needed for strength and inelasticity. This helps you with flexibility.
Ligament
Ligaments attach bone to bone and helps keep structures stable.
Tendon
Tendons attach muscle to bone. Tendons help with flexibility and elasticity.
Dense Irregular Connective Tissue
This type of tissue is irregularly arranged bundles with fibers running all directions. This tissue type is found in the dermis of the skin, walls of large tubular organs, glandular tissue and organ capsules. Dense Irregular Connective Tissue binds tissues together to form organs. It passively translates mechanical forces in all directions without tearing.
Dermis of the skin
Needed for strength.
In Organ Capsule
Binds tissue together to form organs.
Areolar Connective Tissue (Loose Connective Tissue)
Areolar connective tissue has a loose arrangement of cells and fibers.
Areolar Connective Tissue
It cushions organs and holds them together, and is mostly empty space. This type of tissue is good for its location because it keeps the organs cushioned and safe.
Adipose Tissue (Loose Connective Tissue)
Adipose tissue appears empty when it is looked at under a microscope because oil fills most of enlarged nucleus.
Tissue Functions
This tissue functions to protect and insulate. Adipose tissue is stored and helps keep the body warm. Too much adipose tissue can be harmful.
Reticular Connective Tissue (Loose Connective Tissue)
This type of tissue has a delicate network of fibers and cells.
Reticular Connective Tissue
This tissue provides internal supporting framework for lymphoid organs. This tissue is located at the ends of long bones, anterior ends of ribs, in the nose, and the rings of the respiratory tract. The function is the support and protect.
Epithelial Tissue
Epithelial tissue is found throughout the body. It covers the inside and outside of body surfaces, including organs. Epithelial tissue lines the cavities, tubes, ducts and blood vessels, and is the main tissue of glands.
Epithelial Tissue Function.
It absorbs nutrients from connective tissue. It protects the skin and functions in absorption. It functions in filtration and excretion as the kidneys get rid of excess water.
Muscle Tissue
There are 3 tyoes of muscles: skeletal, cardiac, and smooth. Smooth muscles are found in organ walls and blood vessel walls.. Cardiac muscle makes up the walls of the heart and controls synchronized contractions of the heart to produce the heartbeat. Skeletal muscles are responsible for movement.
Muscle Tissue
Nervous Tissue
Nervous Tissue is found in the brain, spinal cord, and nerves.
The Main Function
The main function of nervous tissue is to generate and transmit nerve impulses to and from body organs.