Random Body Part Generator: Parts and Organs With Their Job

One press gives five body parts, each with its body system and the job it does.

Random Body Part Generator: Parts and Organs With Their Job

  1. Voice box (larynx)
  2. Forearm
  3. Shin
  4. Temple
  5. Belly button (navel)

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Tip: the space bar makes new ones.

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Random Body Part Generator: Parts and Organs With Their Job: how it works

An eyelash, the spleen, the funny bone: five parts of the body come up at a press. The list holds 125 parts, 58 you can see and 67 under the skin. Each card names the body system and the job the part does, and three rows of filters keep the draw to a region, a system or the parts on show.

Charades, drawing practice and anatomy revision

For charades, tap Parts you can see, set the count to 1 and ban pointing. The actor has to show the job, so an eyelid blinks and a calf stands on tiptoe. For drawing practice, keep that chip and start a two minute timer. For revision, switch to Under the skin, press Hide all jobs and say the system and the job before you tap Show job.

How the body systems are labeled

Each card sits under one of ten systems. Nine follow the SEER anatomy course from the US National Cancer Institute. The tenth is integumentary, the textbook word for skin, hair and nails. Eyes, ears and taste buds count as nervous system, because the senses report to the brain. The throat and the pancreas each work for two systems and come up under both.

Tips

  • The funny bone is the trick card: it is the ulnar nerve, and the name is probably a pun on humerus, the upper arm bone.
  • Muscle names are descriptions. Biceps means two heads, triceps means three, and the deltoid and trapezius are named for their shapes.
  • Creature design: draw 3 parts and give them all to one invented animal, such as a fish with kneecaps and eyelashes.

Questions and answers

Which parts of the body are covered?

125 parts: 43 from the head and neck, 35 from the chest, belly and back, 15 from the arms and hands, 17 from the legs and feet, and 15 that run all over the body. The rows combine, so Head and neck with Under the skin leaves 17. The list keeps five single bones and leaves the rest to the random bone generator.

Are private parts in the list?

No. The genitals and the reproductive system are left out, so the page can go on a classroom board or into a family game without a surprise. Every other body system is covered, from the pituitary gland to the big toe.

Can I use the random body part generator with young children or language learners?

Yes. A parent or teacher taps Parts you can see and draws one card at a time, and the children point to the part on their own body. In a language class the teacher shows the English word and the class answers in the language they are learning.

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All 125 body parts

Head and neck 43

  • Adam's apple Respiratory system. A bump of cartilage on the front of the voice box that shows more in some people.
  • Brain Nervous system. Runs thought, memory, movement and the signals that keep every organ working.
  • Brainstem Nervous system. Joins the brain to the spinal cord and keeps breathing and heartbeat going.
  • Cerebellum Nervous system. Sits at the back of the brain and fine-tunes balance and coordination.
  • Cerebrum Nervous system. The largest part of the brain. Handles thinking, speech, senses and chosen movement.
  • Cheek Digestive system. Holds food between the teeth while you chew and helps form words.
  • Cochlea Nervous system. Snail-shaped tube in the inner ear that turns vibrations into nerve signals.
  • Cornea Nervous system. Clear front window of the eye. It gives about two-thirds of the focusing power.
  • Ear Nervous system. Gathers sound, and its inner part also keeps your balance.
  • Eardrum Nervous system. Thin membrane that shakes when sound hits it and passes the movement to three tiny bones.
  • Eye Nervous system. Focuses light on the retina, which turns it into signals for the brain.
  • Eyebrow Integumentary system. Steers sweat and rain to the side, away from the eye.
  • Eyelash Integumentary system. Sets off a blink when something brushes it, before it reaches the eye.
  • Eyelid Muscular system. Blinks to sweep tears across the eye and shuts to keep out dust and light.
  • Face Muscular system. Small muscles fixed to the skin, not just to bone, pull it into smiles and frowns.
  • Forehead Skeletal system. The frontal bone behind it guards the front of the brain.
  • Gums Digestive system. Firm pink tissue that seals around each tooth and covers the jawbone.
  • Hair Integumentary system. Strands of keratin that shade the scalp from sun and hold in warmth.
  • Head Nervous system. Carries the brain and four of the five senses: sight, hearing, smell and taste.
  • Iris Nervous system. The colored ring of the eye. Its muscles widen or narrow the pupil.
  • Jaw Muscular system. Chewing muscles swing the lower jaw on a hinge just in front of each ear.
  • Lip Digestive system. Seals the mouth to keep food in, senses how hot food is and shapes speech.
  • Mouth Digestive system. Where digestion starts: teeth break food up and saliva is mixed in.
  • Neck Skeletal system. Seven vertebrae hold up the head and let it nod and turn.
  • Nose Respiratory system. Warms, moistens and filters air, and holds the sensors for smell.
  • Nostril Respiratory system. One of the two openings of the nose, where dust is caught before the air goes deeper.
  • Pineal gland Endocrine system. Tiny gland deep in the brain that makes melatonin, the hormone tied to sleep.
  • Pituitary gland Endocrine system. Pea-sized gland under the brain whose hormones switch other glands on and off.
  • Pupil Nervous system. The dark opening in the iris that lets light in. It shrinks in bright light.
  • Retina Nervous system. Light-sensing layer at the back of the eye, made of cells called rods and cones.
  • Salivary glands Digestive system. Make saliva, which wets food, lets you taste it and starts breaking down starch.
  • Scalp Integumentary system. Skin over the top of the skull, where head hair grows.
  • Sinuses Respiratory system. Air-filled spaces in the bones around the nose, lined with tissue that makes mucus.
  • Skull Skeletal system. 22 bones: 8 form a case around the brain and 14 shape the face.
  • Taste buds Nervous system. Sensor cells, mostly on the tongue, that pick up sweet, sour, salty, bitter and savory.
  • Temple Skeletal system. The flat side of the head behind the eye, close to where four skull bones join.
  • Throat Respiratory and digestive systems. A shared passage: air goes on to the windpipe, food to the food pipe.
  • Thyroid Endocrine system. Butterfly-shaped gland in the neck. Its hormones set how fast the body uses energy.
  • Tongue Digestive system. Moves food around the mouth, carries the taste buds and shapes speech.
  • Tonsils Lymphatic system. Pads of tissue at the back of the throat that meet germs coming in through the mouth.
  • Tooth Digestive system. Cuts and grinds food. A full adult set has 32 and a child's first set has 20.
  • Vocal cords Respiratory system. Two folds that buzz as air passes. Tighter folds give a higher note.
  • Voice box (larynx) Respiratory system. Holds the vocal cords and closes during a swallow so food stays out of the airway.

Chest, belly and back 35

  • Abdominal muscles (abs) Muscular system. Bend the trunk forward and brace the organs behind them.
  • Adrenal glands Endocrine system. One sits on top of each kidney. They release adrenaline and cortisol.
  • Alveoli (air sacs) Respiratory system. Tiny sacs at the ends of the airways where oxygen and carbon dioxide swap with the blood.
  • Aorta Cardiovascular system. The body's largest artery. It carries oxygen-rich blood out of the heart.
  • Appendix Digestive system. Small pouch off the start of the large intestine that contains lymph tissue.
  • Armpit Lymphatic system. A hollow under the shoulder joint that holds a cluster of lymph nodes.
  • Back Muscular system. Broad muscles here hold you upright and power pulling and lifting.
  • Belly (abdomen) Digestive system. The space below the ribs that holds the stomach, liver and intestines.
  • Belly button (navel) Integumentary system. The scar left where the umbilical cord joined you to your mother before birth.
  • Bladder Urinary system. Stretchy muscular bag that stores urine until you go to the toilet.
  • Bronchi Respiratory system. The two branches of the windpipe, one into each lung.
  • Chest Respiratory system. Rises and falls as the ribs and diaphragm draw air into the lungs.
  • Collarbone Skeletal system. The only long bone that lies flat across the body, and the bone people break most often.
  • Diaphragm Muscular system. Dome of muscle under the lungs. It flattens to pull air in and relaxes to push it out.
  • Food pipe (esophagus) Digestive system. Muscular tube that squeezes each swallow from the throat down to the stomach.
  • Gallbladder Digestive system. Stores bile from the liver and releases it to help digest fat.
  • Heart Cardiovascular system. A fist-sized muscle with four chambers that pumps blood around the body.
  • Hip Skeletal system. A deep ball-and-socket joint that passes the weight of the body onto the legs.
  • Kidneys Urinary system. Two bean-shaped filters that clean the blood and make urine.
  • Large intestine Digestive system. Takes water and salts back from what is left and forms solid waste.
  • Liver Digestive system. The largest gland in the body. Makes bile, stores sugar and clears toxins from blood.
  • Lungs Respiratory system. Pass oxygen into the blood and take carbon dioxide out.
  • Pancreas Digestive and endocrine systems. Makes digestive enzymes and the hormones insulin and glucagon.
  • Pectorals (chest muscles) Muscular system. Fan-shaped muscles that pull the arms forward and across the chest.
  • Rib cage Skeletal system. 24 ribs, 12 on each side, curve round from the spine to guard the heart and lungs.
  • Shoulder Skeletal system. A ball-and-socket joint, and the most mobile joint in the body.
  • Small intestine Digestive system. Finishes digestion and absorbs most nutrients. About 3 to 5 meters long in an adult.
  • Spinal cord Nervous system. Cable of nerve tissue inside the spine that carries messages between brain and body.
  • Spine Skeletal system. 24 separate vertebrae plus the sacrum and tailbone. It shields the spinal cord.
  • Spleen Lymphatic system. Filters the blood, removes worn-out red cells and stores white cells.
  • Stomach Digestive system. Churns food with acid and enzymes until it is a thick liquid.
  • Thymus Lymphatic system. Sits behind the breastbone and trains T cells. It is most active in childhood.
  • Trapezius Muscular system. Kite-shaped muscle across the upper back that shrugs and steadies the shoulders.
  • Ureters Urinary system. Two thin tubes that carry urine from the kidneys down to the bladder.
  • Windpipe (trachea) Respiratory system. Tube held open by C-shaped rings of cartilage that carries air toward the lungs.

Arms and hands 15

  • Arm Skeletal system. Three long bones, the humerus, radius and ulna, run from shoulder to wrist.
  • Biceps Muscular system. On the front of the upper arm. Bends the elbow and turns the palm up.
  • Deltoid Muscular system. The rounded cap of the shoulder. Lifts the arm out to the side.
  • Elbow Skeletal system. Hinge joint where the upper arm bone meets the two bones of the forearm.
  • Finger Skeletal system. Three bones each. Tendons from muscles in the forearm and palm do the moving.
  • Fingernail Integumentary system. Plate of keratin that guards the fingertip. It grows about 3.5 mm a month.
  • Fingertip Integumentary system. Ridged skin packed with touch sensors. The ridge pattern is your fingerprint.
  • Forearm Skeletal system. The radius rolls over the ulna here, which is how you turn your palm up or down.
  • Funny bone Nervous system. Not a bone. It is the ulnar nerve crossing the elbow, which tingles when bumped.
  • Hand Skeletal system. 27 bones counting the wrist, so it can grip a hammer or thread a needle.
  • Knuckle Skeletal system. A finger joint. The big row is where the fingers meet the hand.
  • Palm Integumentary system. Thick, bare skin with ridges and many sweat glands, built for grip.
  • Thumb Skeletal system. Two bones and a saddle-shaped joint let it swing across to meet each fingertip.
  • Triceps Muscular system. On the back of the upper arm. Straightens the elbow.
  • Wrist Skeletal system. Eight small bones in two rows let the hand tilt and circle.

Legs and feet 17

  • Achilles tendon Muscular system. The thickest tendon in the body. It ties the calf muscles to the heel bone.
  • Ankle Skeletal system. Hinge joint where the two lower leg bones grip the top of the foot.
  • Arch of the foot Skeletal system. A curve of bones, ligaments and tendons that flattens and springs back each step.
  • Big toe Skeletal system. Has two bones where the other toes have three.
  • Calf Muscular system. Muscles that lift the heel each time you step, jump or stand on tiptoe.
  • Foot Skeletal system. 26 bones. Both feet together hold about a quarter of all the bones in the body.
  • Hamstrings Muscular system. Three muscles at the back of the thigh that bend the knee.
  • Heel Skeletal system. Built on the largest bone of the foot, the first part to land in a walking step.
  • Knee Skeletal system. The largest joint in the body. Two pads of cartilage inside it absorb shock.
  • Kneecap Skeletal system. A small shield-shaped bone that sits inside the tendon of the thigh muscles.
  • Leg Skeletal system. Four bones from hip to ankle: the femur, the kneecap, the tibia and the fibula.
  • Quadriceps Muscular system. Four muscles on the front of the thigh that straighten the knee.
  • Shin Skeletal system. The front edge of the shinbone lies just under the skin, which is why knocks hurt.
  • Sole Integumentary system. Thick, bare skin on the bottom of the foot that takes your full weight.
  • Thigh Skeletal system. Holds the femur, the longest bone in the body.
  • Toe Skeletal system. Helps you balance and gives the last push at the end of each step.
  • Toenail Integumentary system. Made of keratin like a fingernail, but grows about half as fast.

All over the body 15

  • Arteries Cardiovascular system. Thick-walled vessels that carry blood away from the heart.
  • Blood Cardiovascular system. Carries oxygen, food, hormones and heat. An average adult has roughly 5 liters.
  • Bone marrow Skeletal system. Soft tissue inside bones that makes red cells, white cells and platelets.
  • Capillaries Cardiovascular system. The thinnest vessels, where oxygen and food pass from the blood into tissue.
  • Cartilage Skeletal system. Smooth, springy tissue that caps bone ends and shapes the nose and outer ear.
  • Joints Skeletal system. Where two bones meet. Most are capped with cartilage and oiled by fluid.
  • Ligaments Skeletal system. Tough bands that tie bone to bone and keep joints steady.
  • Lymph nodes Lymphatic system. Bean-sized filters along the lymph vessels that trap germs.
  • Muscles Muscular system. More than 600, about 40 percent of body weight. They make most body heat too.
  • Nerves Nervous system. Bundles of fibers that carry signals between the brain, the spinal cord and the body.
  • Skeleton Skeletal system. 206 bones in an adult: 80 in the head and trunk, 126 in the limbs and their girdles.
  • Skin Integumentary system. The largest organ. Keeps water in and germs out, senses touch and helps control heat.
  • Sweat glands Integumentary system. Release salty water onto the skin, which cools you as it dries.
  • Tendons Muscular system. Tough cords that tie muscle to bone and help steady the joints they cross.
  • Veins Cardiovascular system. Carry blood back to the heart. Valves inside stop it from flowing backward.

How this list was compiled: Body systems and the job of each organ follow the NIH National Cancer Institute SEER Training anatomy and physiology module, https://training.seer.cancer.gov/anatomy/, and the MedlinePlus anatomy topic from the US National Library of Medicine, https://medlineplus.gov/anatomy.html. Both are US government works in the public domain. Checked there on 2026-09-18: bone counts for the skull, spine, ribs, hand and foot and the 206 total (SEER, Divisions of the Skeleton); more than 600 muscles making about 40 percent of body weight and how muscles are named (SEER, Muscle Groups); 32 permanent and 20 first teeth and the jobs of lips, cheeks and tongue (SEER, Mouth); the four heart chambers; the liver as the largest gland, bile storage in the gallbladder and the two jobs of the pancreas (SEER, Accessory Organs); what the small and large intestine do. SEER has no unit on the skin, so skin, hair and nails are filed under the integumentary system as MedlinePlus groups them. Checked on Wikipedia on 2026-09-18: the funny bone as the ulnar nerve (https://en.wikipedia.org/wiki/Ulnar_nerve), the femur as the longest bone (https://en.wikipedia.org/wiki/Femur), the knee as the largest joint (https://en.wikipedia.org/wiki/Knee), the Achilles tendon as the thickest tendon (https://en.wikipedia.org/wiki/Achilles_tendon), the four bones that join behind the temple (https://en.wikipedia.org/wiki/Pterion), the collarbone (https://en.wikipedia.org/wiki/Clavicle), the cornea's share of focusing power (https://en.wikipedia.org/wiki/Cornea), nail growth (https://en.wikipedia.org/wiki/Nail_(anatomy)), the length of the small intestine in a living adult (https://en.wikipedia.org/wiki/Small_intestine), adult blood volume (https://en.wikipedia.org/wiki/Blood), skin as the largest organ (https://en.wikipedia.org/wiki/Human_skin) and the shoulder as the most mobile joint (https://en.wikipedia.org/wiki/Shoulder_joint). The genitals and the reproductive system are left out on purpose so the list suits classrooms and family games. Only five single bones are listed (skull, collarbone, rib cage, spine, kneecap); the rest are on the bone page. Wording is our own. Changed 2026-09-19: the palm and sole lines say bare skin and the nostril line no longer names its hairs, so the link to the hair color page shows only under Hair and Scalp; no fact was added. x.system is a list on the two parts that belong to two systems (throat, pancreas), so each is found under either system chip. Licence: own work