Unit 3: Organs and systems of the body
|System of the Body||Organs in the Body|
|Digestive||stomach, liver, intestine, pancreas|
|Circulatory||heart, blood vessels|
|Respiratory||muzzle, windpipe, lungs|
What animals have true tissue?
True tissues are present in Cnidaria, flatworms, and all higher animals.
What is the important of tissue?
1)It protects the organs from injury or shocks. 2)It also connects many body parts such as ligament connects bones to another bones. 3)It also provides nutrition to our body such as blood also transport nutrients to many parts of the body. 4)It fights against many infectious pathogens.
What does Tissue do in the body?
Epithelial tissues act as coverings, controlling the movement of materials across their surface. Connective tissue binds the various parts of the body together, providing support and protection. Muscle tissue allows the body to move and nervous tissues functions in communication.
What is an organ example?
Organs are the body’s recognizable structures (for example, the heart, lungs, liver, eyes, and stomach) that perform specific functions. An organ is made of several types of tissue and therefore several types of cells.
What are the main characteristics of epithelial tissues?
Despite there being many different types of epithelial tissue all epithelial tissue have just five characteristics, these are cellularity, polarity, attachment, vascularity, and regeneration. Cellularity as the name suggests means that the epithelium is made up almost entirely of cells.
What are the 2 types of epithelial tissue?
Epithelial Tissue: There are three principal classifications associated with epithelial cells. Squamous epithelium has cells that are wider than they are tall. Cuboidal epithelium has cells whose height and width are approximately the same. Columnar epithelium has cells taller than they are wide.