Respiratory
The major organ in this system
What is the lungs
The major makeup of the skeletal system.
What is bones
The major part of the muscular system
The makeup of the nervous system
What are nerve cells
The largest organ in the circulatory system
What is the heart
A thin, dome-shaped muscle located just below the lungs and heart.
What is the diaphragm
The bony framework of the head
What is the skull
Any thin, long, thread-like structure
What is fibers
The body’s command center
What is the brain
Blood vessels in the circulatory system that carry oxygen-poor blood from the body’s tissues and organs back to the heart
What is veins
A hollow, flexible tube that connects your larynx (voice box) to your lungs
What is the trachea
The medical term for your kneecap
What is the patella
The large, two-headed muscle on the front of the upper arm.
What is biceps
A long, tube-like bundle of nerve tissue that runs from the base of your brain down to your lower back
What is the spinal cord
The smallest type of blood vessel in your body
What are the capillaries
The hollow, muscular tube inside the front of your neck
What is the throat
Slender, curved bones that form the rib cage in humans and other animals.
What are the ribs
The large muscle located on the back of your upper arm, running from your shoulder to your elbow
What is the tricep
The largest and uppermost part of your brain
What is the cerebrum
Muscular blood vessels that carry blood away from the heart to the rest of the body
What are arteries
True or false: Your left and right lungs are different sizes.
True
True or false: The femur (thigh bone) is the longest and strongest bone in the human body.
True
True or false: Muscles can only push; they cannot pull.
False
True or false: The basic building block of the nervous system is the brain cell.
False
True or false: The cardiovascular system is a closed circulatory system.
True