Respiratory
Which large, dome-shaped muscle located at the base of the chest is the primary muscle responsible for breathing?
Diaphragm
In a diagram of the digestive tract, this muscular tube connects the mouth to the stomach and moves food down using wave-like contractions called peristalsis.
Esophagus
In a diagram of the urinary system, these bean-shaped organs are responsible for filtering the blood and forming urine.
Kidneys
In the female reproductive system, these almond-shaped organs are responsible for producing egg cells (ova) and hormones like estrogen.
Ovaries
What is the name of the process by which a mature egg is released from the ovary once every month?
Ovulation
Often called the 'windpipe,' this tube connects the larynx to the bronchi of the lungs.
Trachea
This J-shaped organ uses both mechanical churning and chemical acid to break down food into a creamy paste called chyme
Stomach
What is the name of the microscopic functional unit of the kidney where the actual filtration of blood occurs?
Nephron
In the male reproductive system, these organs produce sperm and the hormone testosterone.
Testes
These chemical messengers cross the synaptic gap to transmit a signal from one neuron to the next.
Neurotransmitters
These tiny, grape-like air sacs are the specific sites where oxygen enters the blood and carbon dioxide leaves it.
Alveoli
This large accessory organ produces bile, which is essential for the breakdown and digestion of fats.
Liver
On a diagram, these two long tubes carry urine from the kidneys down to the urinary bladder.
Ureters
Which structure in the female reproductive system is the normal site where fertilization (the union of egg and sperm) occurs?
Fallopian Tube
These unique veins are the only ones in the adult human body that carry highly oxygenated blood.
Pulmonary veins
Known as the 'voice box,' this structure contains the vocal cords and sits at the top of the trachea.
Larynx
What is the name of the small, green sac that stores and concentrates bile until it is needed in the small intestine?
This muscular, hollow organ stores urine until it is ready to be eliminated from the body.
Urinary bladder
The muscular organ where a fertilized egg implants and develops into a fetus is called the:
Uterus
Which specific part of the nephron acts as a high-pressure 'sieve' or filter to push fluid out of the blood and into the tubule?
Glomerulus
The trachea branches into two main tubes called ________, with one entering each lung.
Which organ is the primary site for the chemical digestion of food and the absorption of almost all nutrients into the bloodstream?
In the kidney, the outer lighter-colored layer is the cortex, while the inner darker-colored region is known as the:
Medulla
In males, this comma-shaped structure sits on top of the testes and serves as the site for sperm maturation and storage.
Epididymus
Digestion begins in the mouth. What is the name of the enzyme found in saliva that starts breaking down carbohydrates (starches)?
Salivary amylase