Hormone Rangers
The Gut Feeling
The Filtration Nation
Bone Appétit
The Sweat Squad
100

This "master gland" controls many other endocrine glands.

What is the pituitary gland?

100

This organ absorbs most nutrients from digested food.

What is the small intestine?

100

This is the functional unit of the kidney.

What is a nephron?

100

This is the hard, dense outer layer of bone.

What is compact (cortical) bone?

100

This is the largest organ in the human body.

What is the skin?

200

This hormone lowers blood glucose by allowing cells to absorb glucose.

What is insulin?

200

This substance emulsifies fats but is not an enzyme.

What is bile?

200

Blood filtration begins in this tiny capillary network.

What is the glomerulus?

200

These small, sesamoid bones are embedded within a tendon; the largest example is found in the knee.

What is the patella?

200

This skin layer contains blood vessels, sweat glands, and hair follicles.

What is the dermis?

300

These glands release adrenaline during a fight-or-flight response.

What are the adrenal glands?

300

These finger-like projections greatly increase the surface area for absorption.

What are villi?

300

This tube carries urine from the kidney to the bladder.

What is the ureter?

300

This fibrous joint, found between the bones of the skull, allows for essentially no movement in adults.

What is a suture?

300

This pigment protects the body from ultraviolet radiation.

What is melanin?

400

A person has bulging eyes, weight loss, and a fast heartbeat because this gland is overactive.

What is the thyroid gland?

400

This wave-like muscle movement pushes food through the digestive tract.

What is peristalsis?

400

This nephron structure concentrates urine by reabsorbing water and salts.

What is the Loop of Henle?

400

These specialized cells are responsible for breaking down bone tissue during remodeling.

What are osteoclasts?

400

These glands help regulate body temperature through evaporation.

What are sweat glands?

500

Without this organ, blood glucose regulation would become extremely difficult because insulin and glucagon are produced here.

What is the pancreas?

500

A patient can digest carbohydrates and proteins normally but struggles with fats because this organ was removed.

What is the gallbladder?

500

This final section of the nephron adjusts water reabsorption in response to antidiuretic hormone (ADH).

What is the collecting duct?

500

This vitamin deficiency in children causes softening and weakening of the bones, a condition historically called this disease.

What is rickets?

500

This protein gives skin strength, while another provides elasticity.

What are collagen and elastin?