The letter F covers body parts from head to toe. Your frontal lobe helps you plan and make decisions, your femur is the longest and strongest bone you have, and your feet carry you through every day. Smaller F words, like the fovea in your eye, do jobs you may never have heard of.
Here are more than 20 human body parts that start with F, grouped by body system, with a short and accurate explanation of each.
Quick List: Body Parts That Start With F
| Face | Femur | Foot |
| Facial nerve | Fibula | Forearm |
| Fallopian tubes | Fingers | Forehead |
| Fascia | Fingernails | Fovea |
| Fat (adipose tissue) | Fingerprints | Frenulum |
| Femoral artery | Flexor muscles | Frontal bone |
| Femoral nerve | Floating ribs | Frontal lobe |
| Follicles (hair) | Fontanelles | Fundus |
Head, Brain and Face
Frontal lobe: The largest lobe of the brain, at the front of each hemisphere. It handles planning, decision-making, problem-solving, personality and voluntary movement, and it contains the area that produces speech.
Frontal bone: The skull bone that forms the forehead and the upper rims of the eye sockets. It protects the frontal lobes of the brain.
Forehead: The part of the face above the eyebrows. Its muscles raise the eyebrows and create the lines you see when someone looks surprised or worried.
Face: The front of the head, including the forehead, eyes, nose, cheeks, mouth and chin. More than 40 small muscles let it make a huge range of expressions.
Facial nerve: The seventh cranial nerve. It controls the muscles of facial expression and carries taste from the front part of the tongue. Sudden weakness of this nerve on one side causes a condition called Bell’s palsy.
Fontanelles: The soft spots on a baby’s head, where the skull bones have not yet joined. They let the skull flex during birth and allow the brain to grow. The largest one, at the top of the head, usually closes by about two years of age.
Fovea: A tiny pit at the centre of the retina, at the back of the eye. It is packed with cone cells and gives you your sharpest, most detailed vision, which you use for reading and recognising faces.
Frenulum: A small fold of tissue that anchors a moving part. The best-known one is under the tongue; if it is unusually short, the tongue cannot move freely, a condition called tongue-tie.
Bones and Skeleton
Femur: The thigh bone, running from the hip to the knee. It is the longest and strongest bone in the human body and carries much of your weight when you stand, walk and run.
Fibula: The thin bone on the outer side of the lower leg, next to the larger tibia. It carries only a small share of body weight but anchors muscles and forms the outer bump of the ankle.
Floating ribs: The 11th and 12th pairs of ribs. Unlike the other ribs, they do not connect to the breastbone at the front, so their front ends are free.
Limbs, Hands and Feet
Forearm: The part of the upper limb between the elbow and the wrist. It contains two bones, the radius and the ulna, which can rotate around each other to turn the palm up or down.
Fingers: The five digits of each hand: the thumb, index, middle, ring and little finger. Each finger has three small bones (phalanges), except the thumb, which has two.
Fingernails: Hard plates made of keratin, the same protein found in hair. They protect the fingertips and help you pick up small objects. Fingernails grow faster than toenails.
Fingerprints: The patterns of ridges on the fingertips. They form before birth, improve grip and touch sensitivity, and are unique to each person, even identical twins.
Foot: The structure at the end of the leg that supports your weight and moves you forward. Each foot has 26 bones, plus many joints, muscles and ligaments that form its arches.
Muscles, Nerves and Blood Vessels
Flexor muscles: Muscles that bend a joint, such as those on the palm side of the forearm that curl the fingers into a fist. They work in pairs with extensor muscles, which straighten joints.
Femoral artery: The main artery of the thigh. It carries blood to the leg, and its pulse can be felt in the groin crease.
Femoral nerve: A large nerve that runs down the front of the thigh. It powers the quadriceps muscles that straighten the knee and carries feeling from the front of the thigh and inner lower leg.
Fascia: Sheets of tough connective tissue that wrap around and separate muscles, organs and other structures, holding them in place while letting them slide over one another.
Organs, Skin and Other Tissues
Fallopian tubes: Two narrow tubes that carry eggs from the ovaries to the uterus. Fertilisation of an egg by sperm usually takes place inside one of these tubes.
Fundus: The rounded part of a hollow organ farthest from its opening. The fundus of the stomach sits at the top, under the diaphragm; the fundus of the uterus is its upper dome.
Fat (adipose tissue): Tissue made of cells that store energy as fat. It insulates the body, cushions organs and releases hormones that help control appetite and metabolism.
Follicles (hair): Tiny pockets in the skin from which hairs grow. Each one is supplied by blood vessels and nerves and has a small oil gland attached.
Common Mix-Ups to Avoid
- Femur vs. fibula: The femur is the big thigh bone above the knee; the fibula is the thin bone below the knee on the outer side of the leg.
- Flexor vs. extensor: Flexors bend a joint; extensors straighten it.
- Frontal bone vs. frontal lobe: The frontal bone is part of the skull; the frontal lobe is the part of the brain it protects.
Frequently Asked Questions
What is the strongest body part that starts with F?
The femur. It is the longest and strongest bone in the human body.
Which bones start with F?
The femur, fibula and frontal bone all start with F. The floating ribs are also bones that begin with F.
What are easy F body parts for kids?
Face, finger, fingernail, foot, forearm and forehead are simple words children can learn and point to on their own body.
Conclusion
From the frontal lobe that guides your choices to the feet that carry you, the letter F covers parts of nearly every body system. Learning them in groups makes them easier to remember and shows how each one fits into the bigger picture.
Continue the series with body parts that start with E and body parts that start with G.
This article is for general education only and is not medical advice. If you have a health concern, please talk to a doctor.
