Epithelium Tissues
They originate from the ectoderm, mesoderm and endoderm of the embryo. They from lining on the external body surface and internal organs of the body.
- Structure: Epithelial tissue is composed of closely packed cells that form continuous sheets, and covers the body’s external and internal surfaces. These cells are tightly joined together by specialized structures like tight junctions and desmosomes.
- Types: There are various types of epithelial tissue that are divided based on the shape of the cell. They are as follows:
- Simple Squamous epithelial tissue: Single layer of flat, scale-like cells, found in the lining of blood vessels and air sacs of the lungs.
- Stratified Squamous epithelial tissue: Multiple layers of flat cells, forming the outer layer of the skin and lining of the oral cavity.
- Simple Cuboidal epithelial tissue: Single layer of cube-shaped cells, lining small ducts in glands and kidney tubules.
- Simple Columnar epithelial tissue: Single layer of tall, column-shaped cells, lining the digestive tract.
- Pseudostratified Columnar epithelial tissue: Appears stratified but is a single layer of cells with cilia, lining parts of the respiratory tract.
- Transitional epithelial tissue: Found in the urinary bladder, able to stretch
Structure and Types of Animal Tissues
Animal tissue is a group of cells along with intercellular substances that perform one or more functions in the body. The structure of animal tissues depends on their function and location in the body. There are four types of animal tissues; epithelial, connective, muscle, and nervous tissue which work together in a coordinated manner to maintain the structural integrity and physiological functions of the body. Animal tissues help in movement, provide structural support and protection, and facilitate communication and coordination within the body.
Table of Content
- What is an Animal Tissue?
- Diagram of the Animal Tissue
- Types of Animal Tissues
- Epithelium Tissues
- Connective Tissues
- Muscle Tissues
- Nervous Tissue
- Functions of Animal Tissues