Muscular system
What type of muscle is used for voluntary movement?
(Skeletal muscle)
Which body system provides structure and support?
Skeletal system
Which system sends signals from the brain to the body?
Nervous system
Which two body systems work together to move your body?
Muscular and skeletal systems)
What is homeostasis?
Maintaining a stable internal environment)
What happens when a muscle contracts?
(It pulls on a bone to create movement.)
Name one organ protected by the skeleton.
(Brain, spinal cord, heart, lungs, etc.)
What cells carry electrical signals in the nervous system?
Neurons
Which system tells muscles when to contract?
Nervous system
Which body system removes wastes like urine- and feces.
Excretory system
Besides movement, what is another important function of muscles?
Generate heat/help regulate body temperature.)
What part of a bone produces blood cells?
(Bone marrow)
What chemicals carry messages between neurons?
Neuro-transmitter
Explain how the nervous, muscular, and skeletal systems work together to pick up a book.
(Brain sends signals → muscles contract → bones move.)
Which body systems work together to provide oxygen for cellular respiration?
Respiratory and circulatory systems)
Which type of muscle works automatically in organs like the stomach?
Smooth Muscle
What flexible structures allow bones to move?
Joints
Which part of the nervous system is protected by the vertebrae?
Spinal cord
Explain how these three systems maintain homeostasis together.
Nervous system controls muscles, muscles move bones, skeleton protects organs and supports movement.)
Why is insulin important for homeostasis?
It lowers blood sugar
Why would movement become difficult if tendons were damaged?
(Muscles couldn't effectively pull on bones.)
Explain two functions of the skeletal system besides support.
(Protection, blood cell production, mineral storage.)
Explain how reflexes help maintain homeostasis.
(They produce rapid responses that protect the body from injury.)
Name how the circulatory work with the digestive or how the circulatory system works with the respiratory system.
1. Circulatory + Digestive System
After food is broken down in the digestive system, nutrients (like glucose, amino acids, and vitamins) are absorbed into the blood in the small intestine.
The circulatory system then transports these nutrients through the bloodstream to all the cells in the body, where they are used for energy, growth, and repair.
2. Circulatory + Respiratory System
In the lungs, the respiratory system brings in oxygen. Oxygen moves into the blood in tiny air sacs called alveoli.
The circulatory system then carries oxygen to body cells. At the same time, it picks up carbon dioxide (a waste gas) from the cells and brings it back to the lungs to be exhaled.
A student can't remove carbon dioxide efficiently after exercise. Which two body systems are most responsible, and why?
(Respiratory and circulatory systems transport and remove CO₂.)