Question

Organs of the body are defined as

a. a collection of cells that function independently of one another.
b. a combination of two or more tissues that make up a structure which performs a specific function.
c. a collection of cells that perform similar functions.
d. a collection of tissues that function independently of one another.
e. two or more tissues combined to form a structure that allows each tissue to function independently.

Answer 1

An organ is defined as a structure comprising two or more types of tissues that work together to perform a specific function, in accordance with option b from the provided choices.

Step-by-step explanation:

Organs of the body can be described as a combination of two or more tissues that form a structure which performs a specific function. This aligns with option b, meaning organs are anatomically distinct structures composed of multiple tissue types working together to carry out specific physiological functions. For example, the heart is an organ consisting of muscle tissue, connective tissue, and epithelial tissue working in unison to pump blood throughout the body.

Anatomy and physiology explain how the organization of the body progresses from cells to tissues, organs, and finally organ systems. Cells are the basic units of life, encased in membranes and containing organelles that perform vital functions. Tissues are groups of similar cells working together, and organs are collections of different types of tissues combined to perform a common function. The organ system is a higher level of organization that consists of functionally related organs working together to perform major bodily functions.