Tissues in Our Bodies

Lena London

Epithelial Tissues

Epithelial Tissues cover the whole surface of the body. This tissue specializes to form the covering of all internal and external body surfaces. These cells are packed tightly together, with almost no intercellular spaces and only a small amount of intercellular substance. This tissue can be divided into two groups depending on the number of layers of which it is composes. Epithelial tissue that is one cell thick is known to be called simple epithelium. If it has two or more cells thick it is known as stratified epithelium. (our skin)

Connective Tissue

Connective Tissue serves as a "connecting" function. It supports binds and other tissues in our body. Unlike epithelial tissues, connective tissue typically has cells scattered throughout an extracellular matrix of fibrous proteins and glycoproteins attached to a basement membrane. The most common type of Connective Tissue is loose connective tissue, which is in vertebrates. Another type of connective tissue is fibrous connective tissue, which is in ligaments and tendons. These structures is what helps attach muscles to bones and link bones together at joints. The main specialized connective tissues are Adipose, Cartilage, Bone, Blood, and Lymph.

Muscular Tissue

Muscle Tissue gives us the ability to relax and bring about movement and mechanical work in many parts in our body. There are three muscle groups: Smooth, Skeletal, and Cardiac. Smooth Muscle forms the muscle layers in the walls of hollow organs such as the digestive tract, the walls of the bladder, the uterus, various ducts of glands, and the walls of blood vessels. Smooth Muscle Tissue controls slow, involuntary movement in the walls of the stomach and intestines. Skeletal Muscle is the most abundant tissue in the vertebrae body. These muscles bring about the movement of the various bones in the skeleton. Also, Skeletal muscles are directly involved in the breathing process. Cardiac Muscle Tissue is different and only found in the walls of the heart. This tissue is involuntary. This muscle tissue plays the most important role in the contraction of the atria and ventricles of the heart.

Nervous Tissue

Nervous Tissue is specialized to react to stimuli and conduct impulses to various organs in the body which bring about a response to the stimulus. Nerve tissue are all made up of specialized nerve cells called neurons. The sensory neurons conduct nerve impulses from the sense organs and receptors to the central nervous system.
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Which Tissue is the most important to our body?

Muscle Tissue

I believe this is the best tissue in our body because we simply could not survive without it. It is composed of 3 very important groups that are in charge of us surviving and even in charge us having a heart beat. We have the smooth muscle tissue to help us with the involuntary movements that are necessary, such as the contraction it operates in the walls of the stomach and intestines. The skeletal tissue does its part by being involved in our breathing process and being the most abundant tissue in the vertebrae body. It brings the movement we need to have in the bones of the skeleton. Lastly, but most importantly, the cardiac muscle tissue. Without this tissue there wouldn't be us. This tissue makes up the walls of the heart and is in charge of the contractions of the atria and ventricles of the heart. It is responsible for circulating the blood and its contents throughout the body.