Which level of body hierarchy includes skin, hair, and nails?

The level of body hierarchy that includes skin, hair, and nails is the integumentary system.

The level of body hierarchy that includes skin, hair, and nails is the integumentary system.

The level of body hierarchy that includes skin, hair, and nails is the integumentary system.

To understand the body hierarchy and identify the system that includes the skin, hair, and nails, we can break it down step by step:

1. The human body is organized into various levels, often referred to as a hierarchy, with each level consisting of different parts.
2. At the highest level, we have the human body itself, which encompasses all the systems and organs.
3. The human body is then divided into different systems that have specific functions and work together to maintain overall homeostasis. Examples of some major systems in the human body are the cardiovascular system, respiratory system, nervous system, skeletal system, etc.
4. Each system is composed of organs that carry out specific functions. For example, the cardiovascular system consists of organs like the heart and blood vessels.
5. Further down the hierarchy, we have tissues, which are groups of specialized cells that work together to perform a particular function. Common types of tissues include muscle tissue, nerve tissue, connective tissue, and epithelial tissue.
6. Epithelial tissue, in particular, is located at the outermost layer of the body and covers the surfaces and organs. It serves a protective function and lines various body cavities. This tissue is where we find the skin, hair, and nails.
7. Collectively, the skin, hair, and nails form the integumentary system, which is responsible for protecting the body against external factors and maintaining body temperature.

So, in summary, the integumentary system is the level of body hierarchy that includes the skin, hair, and nails.