Body Systems

4. the network of nerve cells and fibres which transmits nerve impulses between parts of the body.
7. is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes.
10. the organs and processes of the body that provide resistance to infection and toxins. Organs include the thymus, bone marrow, and lymph nodes.
11. fitness refers to the ability of the circulatory and respiratory systems to supply oxygen to skeletal muscles during sustained physical activity.

1. The organs and glands in the body that are responsible for digestion.
2. is an organ system consisting of skeletal, smooth and cardiac
3. The framework of the body, consisting of bones and other connective tissues, which protects and supports the body tissues and internal organs.
5. The organs and glands in the body that aid in the production of new individuals
6. the network of vessels through which lymph drains from the tissues into the blood.
8. a system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx, larynx, trachea, bronchi, and lungs
9. is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things