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100

It is a specialized body fluid that circulates through the body, composed of plasma and cells.

Blood

100

Those are 32 in your mouth.

Teeth

100

The internal organ in which the major part of the digestion of food occurs.

The stomach

100

They are living tissues that form your skeleton, providing structural support.

The bones

100

The human body is divided in...

Head, neck, trunk, and limbs.

200

They are a pair of spongy, pinkish-gray organs in the chest that are essential for breathing and are the centerpiece of the respiratory system.

The lungs

200

It is a muscular organ divided into four chambers: the atria (upper chambers) and ventricles (lower chambers)

The heart

200

The largest organ in the body. 

The skin

200

Those are 206 in your body.

Bones

200

Two oval organs that produce sperm in men and other male mammals.

The testicles

300

It is a long, muscular organ in the digestive system that absorbs nutrients and water from food and moves waste out of the body.

Intestine

300

They are the blood vessels of the circulatory system that carry blood toward the heart.

Veins

300

It is a group of elastic tissue that contract and relax to move your body and its organs.

The Muscles

300

 They are 3  muscular, tube-like blood vessels that transport oxygen-rich blood away from the heart to the rest of the body.

Arteries

300

They are a pair of bean-shaped organs located below the rib cage, on either side of the spine, that filter waste and excess fluid from the blood to produce urine

The kidneys

400

The muscular tube inside the neck that starts behind the nose and ends at the top of the trachea (windpipe) and esophagus (the tube that goes to the stomach). It acts as a passageway for air to enter the lungs.

The throat

400

They are the curved, flat bones that form the cage, protecting vital organs like the heart and lungs and helping with breathing.

Ribs

400

The bony structure that protects the brain and supports the face.

Skull

400

It is a complex organ that serves as the body's control center, coordinating thought, memory, emotion, and movement while regulating essential bodily functions like breathing and heart rate

The brain

400

The large, reddish-brown organ located in the upper right abdomen that performs hundreds of vital functions, including purifying blood, processing nutrients, producing bile for digestion, and storing energy.

The liver

500

They are a pair of oval-shaped organs in the female reproductive system that produce and store eggs

The ovaries

500

It is the central support structure of the human body, made of stacked bones called vertebrae that protect the spinal cord and enable movement

The spine or backbone

500

a large ductless gland in the neck which secretes hormones regulating growth and development through the rate of metabolism.

The thyroid

500

They are living tissues that form your skeleton, providing structural support, protecting organs, anchoring muscles for movement, and housing bone marrow for blood cell production

The bones


500

A muscular membranous sac in the abdomen which receives urine and stores it for excretion.

The bladder

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