Human Body Systems Review

What is homeostasis?

• Organs and organ systems of the human body

• Maintenance of the environment outside the human body

• Removal of waste materials produced by the cells of the human body

• Maintenance of stable environment inside the human body

Which of the following statements BEST describes homeostasis in the human body?

• Your circulatory system detects a virus in your bloodstream and sends a signal to your stomach to digest

            medicine you swallowed.

• Your respiratory system senses extra oxygen in your bloodstream which it breathes back into the environment.

• Your nervous system feels the temperature drop outside which signals to your muscles and causes you to shiver.

• Your digestive system tells your muscles its hungry which causes you to pick up food to eat.

What organ system is known as the control center of the human body and is responsible for directing all the other organ systems?

• Nervous system

• Digestive system

• Circulatory system

• Respiratory system

How will a brain injury affect the human body?

• It affects our ability to receive and respond to information about the human body and the environment.

• It affects the digestion of food and removal of wastes.

• It affects our body's ability to fight disease.

• It affects our growth and development.

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Which of the following describes how the structure of the human skeletal system relates to its function?

• It returns fluids to blood vessels and helps get rid of bacteria and viruses.

• It provides a frame to support and protect the body and allows the body to move.

• It receives information about the body and the environment and responds to that information.

• It breaks down food into nutrients that the body can use.

What is the main function of the circulatory system?

•     It produces the chemical signals that allow parts of the human body to communicate over long distances

• It delivers nutrients and other essential materials to cells and remove waste products

• It coordinates all other human body systems so that they can function together to maintain homeostasis

•     It breaks down the nutrients found in food so that they can be used by all cells in the human body

What is the main function of the organ shown in the picture?

• It breaks down food into smaller nutrients.

• It takes in oxygen and eliminates carbon dioxide.

• It absorbs water and maintains water balance.

• It creates antigens to fight infections.

Which of the following describes how your respiratory and circulatory system work together to maintain homeostasis during exercise?

• Your heart produces more red blood cells to help provide energy to cells.

• Your lungs produce more oxygen to help provide energy to cells.

• Your blood flow decreases to provide nutrients to cells.

• Your breathing rate increases to obtain more oxygen which is delivered to cells through the bloodstream.

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Based on the picture, how do human body systems respond and work together to maintain homeostasis?

• The reproductive system stimulates the immune system to reduce the amount of sweat produced by sweat glands.

• The nervous system stimulates the excretory system resulting in sweat glands increasing sweat production.

• The musculoskeletal system stimulates the excretory system to reduce muscle movement to conserve water.

• The digestive system stimulates the circulatory system to reduce oxygen and carbon dioxide gas exchange.

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Which of the following describes the most important function of the human digestive system?

• It coordinates signals between distant parts of the human body

• It removes wastes in the blood

• It breaks down food so that it can be used by the human body

• It transports important nutrients to all parts of the human body