🍖 ¿Qué son los Tejidos? 🍖 Tipos y Características [Fácil y Rápido] | BIOLOGÍA |

What Are Tissues?

Overview of Tissues

• A tissue is defined as a group of similar cells that work together to perform a specific function. Histology is the science that studies these tissues in the body.

Types of Tissues

• There are four main types of tissues: epithelial, connective, muscular, and nervous.

Epithelial Tissue

• The primary role of epithelial tissue is to cover, protect, and limit external surfaces. A clear example is the skin.

• Epithelial tissue also lines internal cavities and organs within the body.

Connective Tissue

• Also known as connective tissue, it exists throughout the body with key functions including binding and connecting organs. Examples include adipose tissue, blood, bone tissue, and cartilage.

Muscular Tissue

• Muscular tissue consists of elongated cells called myocytes that contain actin and myosin proteins enabling contraction and expansion for bodily movements.

• There are three types of muscular tissue: smooth muscle (involuntary movement), striated muscle (attached to bones for voluntary movement), and cardiac muscle (forms the heart).

Nervous Tissue

• Nervous tissue comprises nerve cells (neurons) responsible for transmitting messages throughout the body. It detects signals, processes them, and generates nerve impulses in response.