Final answer:
The human body comprises eleven major organ systems, each with specific functions and associated organs, such as the skin in the integumentary system and the brain in the nervous system.
Step-by-step explanation:
The human body is structured in a hierarchical manner and this can be described in terms of six levels of organization: from the smallest, subatomic particles to the entire biosphere. Within this hierarchy, the organ systems of the body function to maintain the organism.
There are eleven major organ systems in the human body, each with their specific functions and organs. Below are some of these systems with an example of an organ and its major function within that system:
- Integumentary System: Includes the skin, protecting the body from external damage.
- Skeletal System: Composed of bones, like the femur, and serves to provide structure and support.
- Muscular System: Consists of muscles such as the biceps, enabling movement.
- Nervous System: Made up of the brain and nerves, it coordinates body activities.
- Endocrine System: Involves glands like the thyroid, which secretes hormones to regulate processes.
Organ systems are interrelated and often an organ serves more than one system, underlining the complexity and integration necessary for the body to function properly.