Category: Brain Teasers

Trivia: The integumentary system includes which organs?

Hair, skin, and nails
Eyes, ears, and nose
Ovaries and fallopian tubes
Ganglia,cranial nerve,spinal nerve

Correct Answer: Hair, skin, and nails

So why is this answer correct? : The integumentary system — which includes skin, nails, hair, and certain glands, — makes up the body’s outer layer. Organs in this system protect the body from bacteria, injuries, and sunlight while keeping body temperature balanced. This system is also responsible for supporting the immune system and storing water, fat, glucose, and vitamin D.

Trivia: What is NOT a category within the muscular system?

Smooth
Cardiac
Skeletal
Lymphatic

Correct Answer: Lymphatic

So why is this answer correct? : The muscular system can be broken down into three subsystems: skeletal, smooth, and cardiac muscles. Skeletal muscles are attached to bones and are responsible for bodily movements. Smooth muscles are found in the walls of hollow organs, such as the intestines, uterus, and stomach. Cardiac muscles are the smallest muscle group, located in the heart’s walls and responsible for keeping it pumping.

Trivia: What digestive system organ is NOT part of the GI tract?

Esophagus
Gallbladder
Stomach
Small intestine

Correct Answer: Gallbladder

So why is this answer correct? : The digestive system includes two subsystems: the GI (gastrointestinal tract) and the biliary system. The GI tract is a series of connected, hollow organs that help digest food and absorb nutrition. These organs include the mouth, esophagus, stomach, small and large intestines, and anus.

Trivia: Which system are teeth part of?

Skeletal system
Integumentary system
Urinary system
Digestive system

Correct Answer: Digestive system

So why is this answer correct? : Teeth are part of the digestive system, breaking down food before it’s swallowed. Despite its resemblance to bones, teeth are actually ectodermal organs, which develop when the fetus is still in the womb. The enamel surrounding a tooth’s exterior is the hardest substance in the human body.

Trivia: What is the urinary system’s primary function?

Filtering the blood
Producing white blood cells
Defending against pathogens
Absorbing nutrients

Correct Answer: Filtering the blood

So why is this answer correct? : The urinary system filters blood, creating waste (urine) as a byproduct. This system also balances the levels of certain substances (such as potassium, water, and sodium) in the body. Organs in this system include the kidneys, ureters, bladder, urethra, and sphincter.

Trivia: Which system releases hormones?

Urinary system
Muscular system
Endocrine system
Circulatory system

Correct Answer: Endocrine system

So why is this answer correct? : The endocrine system uses hormones as chemical messengers to tell specific organs what to do. Glands, such as the hypothalamus and thyroid, secrete hormones that travel through the bloodstream to the appropriate organ or tissue. The endocrine system controls vital functions, such as metabolism, growth, sexual function, heart rate, blood pressure, and sleep cycles.

Trivia: Which organ is NOT part of the digestive system?

Stomach
Small intestine
Pancreas
Kidneys

Correct Answer: Kidneys

So why is this answer correct? : The digestive system includes the organs that help the body digest food, including the stomach, the intestines, and the pancreas. These organs are connected by a series of hollow tubes, leading from the mouth and esophagus to the intestines and anus. The kidneys are part of the urinary system, which works alongside the digestive system to help the body eliminate waste.

Trivia: The central nervous system includes the brain and what?

Spinal cord
Skin
Thyroid gland
Liver

Correct Answer: Spinal cord

So why is this answer correct? : The nervous system transmits signals between the brain and the rest of the body, controlling our ability to think, see, move, hear, and breathe. This system is broken down into two parts: the central and peripheral nervous systems. The brain and spinal cord comprise the central nervous system, while the nerves that branch out through the rest of the body are part of the peripheral nervous system.

Trivia: Which system defends the body against disease?

Reproductive system
Lymphatic system
Nervous system
Urinary system

Correct Answer: Lymphatic system

So why is this answer correct? : The lymphatic system includes lymph nodes, vessels, nodules, and lymphoid tissue, which defend the body against disease. This system filters bacteria and other foreign bodies from lymph, a fluid that contains white blood cells that nourish the tissues.

Trivia: Which system circulates blood around the body?

Cardiovascular system
Endocrine system
Nervous system
Reproductive system

Correct Answer: Cardiovascular system

So why is this answer correct? : The cardiovascular system’s heart, arteries, veins, and capillaries work together to pump and circulate blood through the body. Since blood carries oxygen, nutrients, and waste to the appropriate organs and tissues, proper circulation is vital to bodily functions.