Grade 8
This system in the human body includes the brain, spinal cord, and nerves and controls most bodily functions.
What is the nervous system?
This organ is responsible for controlling and coordinating all body functions by transmitting electrical signals.
What is the brain?
This part of the brain controls voluntary movements, speech, and reasoning.
What is the frontal lobe?
This system is responsible for transporting oxygen from the lungs to the cells and carrying carbon dioxide away.
What is the respiratory system?
This part of the cell contains genetic material and is often called the "control center" of the cell.
What is the nucleus?
This type of muscle tissue, found only in the heart, is responsible for pumping blood throughout the body.
What is cardiac muscle?
This structure in the human body helps protect and cushion the spinal cord.
What are the vertebrae?
This process occurs in the lungs, where oxygen from the air is exchanged for carbon dioxide in the blood.
What is gas exchange or respiration?
This fluid is carried through the circulatory system and is made up mostly of water, along with red blood cells, white blood cells, and platelets.
What is blood?
The human body contains 206 bones, and this bone is the longest in the body.
What is the femur?
This structure in the body is responsible for filtering waste from the blood and producing urine. It contains nephrons.
What are the kidneys?
This system transports oxygen, nutrients, and waste products throughout the body via blood vessels.
What is the circulatory system?
This system, which includes the heart, blood, and blood vessels, is responsible for transporting substances throughout the body.
What is the circulatory system?
This type of muscle tissue, found in the walls of the heart, is involuntary and helps pump blood throughout the body.
What is cardiac muscle?
This system, which includes the skin, hair, and nails, protects the body from damage and helps regulate temperature.
What is the integumentary system?
The process by which cells produce energy by breaking down glucose in the presence of oxygen is called this.
What is aerobic respiration?
The human body has five senses. This sense detects changes in the environment, allowing us to experience touch, pain, temperature, and pressure.
What is the sense of touch (through the skin)?
These are the tiny structures in the cells that produce energy by breaking down glucose.
What is the mitochondria?
The small intestine is responsible for most nutrient absorption, but this section of the digestive system absorbs water and forms waste.
What is the large intestine?
This type of blood vessel carries oxygen-rich blood away from the heart to the rest of the body.
What are arteries?
This molecule, found in red blood cells, binds with oxygen to carry it throughout the body.
What is hemoglobin?
The pancreas plays an important role in regulating blood sugar levels by releasing this hormone when blood sugar is high.
What is insulin?
This long, coiled structure in the human body contains genetic material and is found inside every cell.
What is a chromosome?
This hormone, produced by the thyroid gland, regulates the body's metabolism by controlling the rate at which cells use energy.
What is thyroxine?
These molecules, made up of amino acids, are responsible for building and repairing tissues in the body.
What are proteins?