Digestive System
Respiratory System
Circulatory System
Endocrine System
Female Reproductive System
100

This organ is responsible for most nutrient absorption in the digestive tract

What is the small intestine?.

100

This muscle is the primary driver of breathing.

What is the diaphragm?

100

This organ pumps blood throughout the body.

What is the heart?

100

This gland is known as the “master gland” because it regulates other endocrine glands.

What is the pituitary gland?

100

The female gonads that produce eggs are called these.

What are ovaries?

200

The enzyme amylase, which begins the breakdown of starch, is found in this fluid.

What is saliva?

200

Gas exchange occurs in these tiny air sacs of the lungs.

What are alveoli?

200

The upper chambers of the heart are known as these.

What are atria?

200

Insulin, which lowers blood glucose, is secreted by this organ.

What is the pancreas?

200

This organ is the site where a fertilized egg implants and develops.

What is the uterus?

300

This muscular valve controls the movement of food from the stomach into the small intestine.

What is the pyloric sphincter?

300

The trachea divides into two of these structures that lead into the lungs.

What are bronchi?

300

 The largest artery in the body is this vessel.

What is the aorta?

300

The thyroid gland produces this hormone to regulate metabolism.What is thyroxine (T4)?

What is thyroxine (T4)?

300

The process by which an egg is released from the ovary is called this.

What is ovulation?

400

The rhythmic, wave-like contractions that move food through the digestive tract are called this.

What is peristalsis?

400

Oxygen binds to this molecule in red blood cells for transport.

What is hemoglobin?

400

These vessels carry oxygen-rich blood away from the heart.  

What are arteries?

400

The adrenal medulla secretes these hormones during the “fight or flight” response.

What are epinephrine and norepinephrine?

400

The hormone primarily responsible for maintaining pregnancy is this.

What is progesterone?

500

Bile, produced by the liver, aids in the digestion of this macronutrient.

What helps with fats digestion?

500

This term describes the volume of air moved in and out of the lungs during normal breathing

What is tidal volume?

500

This node acts as the heart’s natural pacemaker.

What is the sinoatrial (SA) node?

500

This hormone from the posterior pituitary promotes water reabsorption in the kidneys.

What is antidiuretic hormone (ADH)?

500

The funnel-shaped end of the fallopian tube near the ovary is known as this.

What is the infundibulum?