Which statement is true about primary tissue types?

Which statement is true about primary tissue types?

• A. The four primary tissue types are epithelial, connective, muscle, and nervous
• B. Three primary tissue types exist
• C. Epithelial tissue lacks vascularization
• D. All tissues are composed of cells

Answer: (A)

Classification into four primary tissue types defines how we categorize the tissues that form organs and body structures. The four main categories are epithelial, connective, muscle, and nervous tissue, and this grouping is the foundational way we describe tissue structure and function in anatomy and physiology. The statement that there are three primary tissue types would miss one of these essential categories, so it isn’t correct. The fact that epithelial tissue lacks vascularization describes a property of a specific tissue type, not the count or arrangement of primary tissue types as a group. And while it’s true that all tissues are composed of cells, that’s a general cell-theory point and doesn’t directly address how many primary tissue types exist. So the four-tissue classification best captures what’s being asked about primary tissue types.

Classification into four primary tissue types defines how we categorize the tissues that form organs and body structures. The four main categories are epithelial, connective, muscle, and nervous tissue, and this grouping is the foundational way we describe tissue structure and function in anatomy and physiology. The statement that there are three primary tissue types would miss one of these essential categories, so it isn’t correct. The fact that epithelial tissue lacks vascularization describes a property of a specific tissue type, not the count or arrangement of primary tissue types as a group. And while it’s true that all tissues are composed of cells, that’s a general cell-theory point and doesn’t directly address how many primary tissue types exist. So the four-tissue classification best captures what’s being asked about primary tissue types.