Table of contents | |
Introduction | |
Connective Tissues | |
Muscle Tissue | |
Neural Tissue |
Connective Tissue: This type of tissue supports, binds together, and protects tissues and organs of the body. It's characterized by an abundance of extracellular matrix, which contains protein fibers, and the cells are spaced apart. Connective tissue includes bone, blood, adipose, cartilage, and lymphatic tissue. Its main functions are to provide structural support, nutrient transportation, insulation, and energy storage.
Connective Tissue
Muscle Tissue: Specialized for contraction, muscle tissue facilitates movement of the body and its parts, and it is crucial for maintaining posture and producing heat. There are three types of muscle tissue: skeletal, which is voluntary and attached to bones; cardiac, which is involuntary and makes up the heart; and smooth, which is also involuntary and found in the walls of internal organs, such as the intestines and blood vessels.
Muscle Tissue
Neural Tissue: Also known as nervous tissue, this type forms the central nervous system (brain and spinal cord) and the peripheral nervous system, which includes all the nerves that branch from the brain and spinal cord and extend to other parts of the body. Neural tissue is composed of neurons, which transmit electrical impulses, and glial cells, which provide support and nutrition to neurons. Its primary function is to generate and transmit nerve impulses to and from body organs via neurons.
Neuron
Connective tissues are classified into three main types:
(i) Loose connective tissue
(ii) Dense connective tissue
(iii) Specialized connective tissue
It features cells and fibers arranged loosely within a semi-fluid ground substance. Generally it is of 2 Types namely:
(a) Areolar tissue is found beneath the skin and often serves as a supportive framework for epithelium. This tissue contains fibroblasts(which produce and secrete fibres), macrophages, and mast cells.
(b) Adipose tissue, another type of loose connective tissue, is primarily located beneath the skin. The cells in this tissue are specialized for fat storage. Nutrients that are in excess and not used immediately are converted into fats and stored in this tissue.
Loose connective tissue : (a) Areolar tissue (b) Adipose tissue
Fibres and fibroblasts are tightly packed in dense connective tissues.The orientation of fibres can be regular or irregular, leading to the classification of dense regular and dense irregular tissues.
(a) Dense Regular Connective Tissues
(b) Dense Irregular Connective Tissues
(a) Regular (b) Irregular
(a) Cartilage
(b) Bones
Bone
(c) Blood
Blood cells
Muscle Structure and Function
Muscle Tissue
There are three types of muscles in the body:
(a) skeletal(voluntary muscles attached to bones),
(b) smooth(involuntary muscles found in organs)
(c) cardiac(the heart muscle, which is also involuntary).
Types of Muscles
Neural tissue plays a crucial role in controlling the body's response to changing conditions. It is made up of neurons and neuroglial cells.
Neural Tissue
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1. What are the main types of connective tissues in the body? |
2. How do muscle tissues differ from each other? |
3. What is the role of neural tissue in the body? |
4. What are the characteristics of connective tissues? |
5. How does muscle tissue contribute to movement in the body? |
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