Question

name: period. part 5 - nervous system & response to stimuli the nervous system processes information and coordinates responses. specialized cells called neurons transmit electrical signals throughout the body. the brain and spinal cord, which make up the central nervous system (cns), process this information. for example, if you touch something hot, sensory receptors send signals to the spinal cord, which quickly commands muscles to move your hand away. reflexes protect the body by responding quickly. 13. which part of the nervous system processes information and coordinates responses? a. peripheral nervous system b. brain and spinal cord c. muscles and bones d. heart and lungs 14. why are reflexes important for survival? a. they are reflexes important for survival? b. they keep the heart beating. c. they protect the body by acting quickly. d. they control breathing rate. part 6 - interdependence of body systems the human body shows how different levels of organization and systems must work together. when you run, muscle tissues contract to move your legs. your lungs bring in oxygen, and your heart pumps blood carrying oxygen to your muscles. the circulatory, muscular, respiratory, and nervous systems all coordinate to keep your body moving and in balance. this coordination is essential to maintain homeostasis. 15. which of the following best describes the relationship between tissues and organs in complex organisms? a. organs are made up of groups of specialized cells that all do the same job. b. tissues combine to form organs, which then perform specific functions in the body. c. tissues and organs function separately and do not interact. d. tissues only exist in organ systems, not in individual organs. 16. a student says, \the heart is just a muscle that pumps blood.\ based on the reading, evaluate this claim. is it fully accurate? why or why not? 17. using what youve learned, explain how at least two body systems interact to respond to a physical activity, like running or jumping. in your explanation, identify: the systems involved what each system contributes how their coordination helps maintain homeostasis

Explanation:

1. The central nervous system, which consists of the brain and spinal cord, processes information and coordinates responses.
2. Reflexes protect the body by acting quickly, which is important for survival.
3. Organs are made up of groups of specialized cells that perform specific functions in the body.
4. The statement is not fully accurate. The heart is a complex organ with multiple functions and is part of a larger system. It has its own electrical - conduction system, valves to ensure one - way blood flow, and interacts with other body systems like the circulatory and nervous systems.
5. When running or jumping:

• Systems involved: Muscular system, Circulatory system, Respiratory system, Nervous system.
• Contributions: The muscular system contracts to move the body. The circulatory system pumps blood to deliver oxygen and nutrients to the muscles and remove waste. The respiratory system takes in oxygen and expels carbon dioxide. The nervous system coordinates the movements and responses.
• Coordination for homeostasis: The nervous system signals the muscles to move. The circulatory and respiratory systems work together to supply the increased oxygen demand of the muscles during physical activity, maintaining a stable internal environment.

Answer:

1. b. Brain and spinal cord
2. b. They protect the body by acting quickly.
3. a. Organs are made up of groups of specialized cells that all do the same job.
4. No, it is not fully accurate. The heart is a complex organ with multiple functions and interacts with other body systems.
5. Systems involved: Muscular, Circulatory, Respiratory, Nervous. Contributions: Muscular - movement; Circulatory - blood delivery; Respiratory - gas exchange; Nervous - coordination. Coordination for homeostasis: Nervous system signals muscles, circulatory and respiratory systems meet oxygen demand.