A tissue is defined as which of the following?

A tissue is defined as which of the following?

• A. A group of cells that performs a specialized function
• B. A structure that contains a spine
• C. A group of bones
• D. Part of the lymphatic system

Answer: (A)

A tissue is a group of cells that work together to perform a specific function in the body. These cells share characteristics and cooperate within a supportive extracellular matrix to carry out a common role, such as contracting, lining surfaces, or transmitting signals. This organization distinguishes tissue from a single cell or from larger structures; tissues form organs and structures that perform body-wide tasks. For example, muscle tissue contains muscle cells that contract, epithelial tissue lines organs and surfaces, connective tissue provides support, and nervous tissue transmits nerve signals. In lab settings, tissues are studied as samples (histology) to understand how their cellular arrangement relates to function or disease. The other descriptions describe larger structures or systems rather than a tissue: a vertebral structure is a bone-containing spine component, a group of bones refers to the skeleton, and a part of the lymphatic system is a body system rather than a tissue.

A tissue is a group of cells that work together to perform a specific function in the body. These cells share characteristics and cooperate within a supportive extracellular matrix to carry out a common role, such as contracting, lining surfaces, or transmitting signals. This organization distinguishes tissue from a single cell or from larger structures; tissues form organs and structures that perform body-wide tasks.

For example, muscle tissue contains muscle cells that contract, epithelial tissue lines organs and surfaces, connective tissue provides support, and nervous tissue transmits nerve signals. In lab settings, tissues are studied as samples (histology) to understand how their cellular arrangement relates to function or disease.

The other descriptions describe larger structures or systems rather than a tissue: a vertebral structure is a bone-containing spine component, a group of bones refers to the skeleton, and a part of the lymphatic system is a body system rather than a tissue.