Organ Systems Review

Which organ system transports materials to and from cells?

• Respiratory

• Circulatory

• Endocrine

• Lymphatic

Answer explanation

The Circulatory System contains your heart, blood vessels (arteries, veins, and capillaries), and your blood. It acts like a giant transportation system delivering oxgyen and nutrients to all your body cells and carrying away wastes. This system works closesly with the lungs in the Respiratory system.

Which organ system breaks down food into nutrients to be used in the body?

• Circulatory

• Skeletal

• Digestive

• Excretory

Answer explanation

The digestive system breaks down the food you eat into protiens, carbohydrates, and fats to be transported into your blood (Cardiovascular System) to all your body cells and tissues.

Which organ system makes hormones and is called the slow response control system of your body?

• Endocrine

• Lymphatic

• Reproductive

• Circulatory

Answer explanation

Hormones are chemical messengers that travel all over the body controlling the actions of cells and tissues. Examples of horomones are insuline, adrenaline, melatonin, testosterone, and estrogen.

Which organ system filters and removes unwanted wastes from the blood to be eliminated from your body in the form of urine.

• Lymphatic

• Endocrine

• Digestive

• Excretory

Answer explanation

The excretory system contains your kidneys. Your kidneys filter your blood by removing unwanted liquid wastes that are held in your bladder until they are removed from your body in the form of urine.

Which organ system protects your body by being the first line of defense against infection, prevents fluid loss, and protects against UV radiation from the sun?

• Integumentary

• Lymphatic

• Muscular

• Skeletal

Answer explanation

The skin is the largest organ in your body. The integumentary system also contains all your hair, fingernails, and toenails. Your skin also produces Vitamin D from the sun for your body to use to help build bone.

Which organ system maintains fluid balance in your body and helps fight disease and infection?

• Lymphatic

• Endocrine

• Circulatory

• Integumentary

Answer explanation

The lymphatic system contains vessels similar to blood vessels in the circulatory sytem. It is also known as the Immune System because it contains white blood cells that fight against disease and infection. White blood cells are made in the bone marrow and in the Thymus. The spleen controls the amount of blood cells in your body.

Which organ system is made up of special tissue that contracts and is responsible for ALL movement in your body?

• Skeletal

• Muscular

• Nervous

• Circulatory

Answer explanation

The muscular system works closesly with the skeletal system and cardiovascular system. Your muscles need a lot of nutrients and oxygen and create a lost of wastes. Your muscles also pull on your bones to cause movement that you can control. Your heart is made entirely of cardiac muscle. Smooth muscle moves things inside your body like food and blood.

Which organ system gathers, interprets, and responds to information and basically controls everything in your body?

• Muscular

• Skeletal

• Nervous

• Respiratory

Answer explanation

Your nervous system contains your brain, spinal cord, and nerves. Your brains sends messages back and forth down your spinal cord and to the nerves all over your body.

Which organ system creates new life and is different in males and females?

• Respiratory

• Reproductive

• Endocrine

• Lymphatic

Answer explanation

The reproductive system is different in males and females. Males have sperm cells and females have egg cells. These two cells come together and create new life.

Which organ system is involved in breathing in oxygen and breathing out carbon dioxide?

• Circulatory

• Respiratory

• Lymphatic

• Nervous

Answer explanation

The major organ of the Respiratory System is the lungs. This system works closely with the circulatory system to deliver oxygen to your body cells and carry away carbon dioxide from your body cells to be breathed out as waste.