Longest bone in human body

The longest bone in the human body is the femur, or thighbone, as it’s more commonly known. This long bone extends from the pelvis to the knee joint. Its length varies from person to person and depends on skeletal build, genetics, and overall height. Read on to learn more about the longest bone in the human body and why it’s essential to our bodies’ mobility. The longest bone in the human body is the femur or thigh bone. It’s about a foot long in adults and about one-quarter of our height. The femur is essential for walking, running, and jumping because it’s the bone that connects the hip to the knee. It’s also the strongest bone in the body. A fractured femur can be a life-threatening injury. Doctors use surgery to replace fractures with metal pins and screws to allow time for the bones to heal. But bones don’t just break – they can also develop problems like osteoporosis or arthritis. You need healthy habits like exercise, eating well, not smoking, getting enough sleep, managing stress, and taking calcium supplements if you’re postmenopausal – these are all great ways to protect your bones! How Long Is The Longest Bone? The longest bone in the human body is the femur or thigh bone. It’s about a foot long in adults. The standard length of an adult femur is 18 inches. One end, the head, fits into the hip socket to form a ball and socket joint. On the other end, called the greater trochanter, several muscles attach to it. When one or more of these muscles contract, they pul...

Excluding a variable number of sesamoids (small rounded bones), there are 206 bones in the adult human body, compared with about 300 for children (as they grow, some bones fuse together). The thigh bone, or femur, is the longest. It constitutes 27.5% of a person's stature normally, and may be expected to be 50 cm (19.75 in) long in a man measuring 180 cm (5 ft 11 in) tall. The longest recorded bone was a femur measuring 76 cm (2 ft 6 in), which belonged to Constantine, a German giant. Records change on a daily basis and are not immediately published online. For a full list of record titles, please use our Record Application Search. (You will need to register / login for access) Comments below may relate to previous holders of this record.

The human body has 206 bones and people always ask which bone is the shortest and longest of all but no one talks about the length of the names of the bones. By knowing the longest & strongest bone as femur and shortest & lightest bone as stapes, we are just focusing on the long and short names of bones. Bones with the longest name Out of the whole skeleton, a bone from the foot, one of the tarsals, wedge shaped Intermediate cuneiform has the longest name with 21 letters. Word cuneiform refers to an ancient writing system used about 3400 BC because of its wedge shaped marks on clay pots and tablets. It is considered as the most primitive writing style even before Egyptians. Other two are medial and lateral cuneiforms with 15 & 16 letters respectively. Intermediate phalanges has also 21 letters in the name. They are 4 in each hand and 4 in each foot, with the exception of thumbs and big toes present in all fingers and toes. Moreover there are proximal and distal phalanges with 20 and 15 letters respectively. These are the bones of fingertips and toes, 14 in each hand and 14 in each foot. Bone with second longest name In second place is inferior nasal conchae at 20 characters long. These conchae helps to filter, warming or humidifying the air we breathe in. Bone with third longest name Next comes coccygeal vertebrae, with 18 letters. This vertebrae attached with Coccyx, relatively short name with 5 characters, also known as tail bone. According to the theory of evolution, ou...

The smallest human bone A baby's body has about 300 bones at birth. These eventually fuse to form the 206 bones that adults generally have, according to the Nemours Children's Health System. But no matter the age of an individual, the smallest bones in the human body are found in the ear, Dr. Robert Glatter, an emergency physician at Lenox Hill Hospital in New York City, told Live Science. These bones are called the malleus, incus and stapes — the Latin names for hammer, anvil and stirrup, whose shapes they vaguely resemble, according to the National Institute on Deafness and Other Communication Disorders (NIDCD). An anatomical diagram of the human ear structure. Notice the malleus, incus and stapes (in white) in the middle. (Image credit: Pikovit44 via Getty Images) The malleus, incus and stapes, which altogether are known as the ossicles, are connected to the eardrum. This trio of bones helps convert vibrations "into nerve signals," Glatter said. The smallest of the ossicles is the stapes. It measures about 0.1 to 0.13 inches (2.6 to 3.4 millimeters) in length and weighs about 0.00007 to 0.00015 ounces (2 to 4.3 milligrams), according to Guinness World Records. The three ossicles together are the size of an orange seed, the NIDCD noted. Ossicles found in fossil remains have shed a great deal of light on mammalian evolution. For instance, a 2017 study in the journal Nature described a mouse-size gliding mammal known as Arboroharamiya allinhopsoni that lived in what is now...

Next to the tibia is the fibula, the thinner, weaker bone of the lower leg. It is also known as the calf bone, as it sits slightly behind the tibia on the outside of the leg. The fibula is connected via ligaments to the two ends of the tibia. The patella, commonly known as the kneecap, is at the center of the knee. It aids in knee extension and protects the joint. As the knee bends, the patella slides along a groove in the femur. Below the tibia and fibula are seven bones known as the tarsals. These make up the ankle and upper portion of the foot. The seven tarsal bones are: • Calcaneus: The largest bone of the foot, it is commonly referred to as the heel of the foot. • Talus: This bone creates the lower portion of the ankle joint. • Cuboid: This multisurface bone sits on the outside of the foot near the fifth phalange (little toe). • Cuneiforms: These three small bones are closest to the five metatarsal bones. They sit in a row beginning at the inside of the foot and end at the cuboid. • Navicular: This curved bone sits between the talus and cuneiforms. The five metatarsal bones in each foot create the body of the foot. Numbered one through five, the bone that sits behind the big toe is No. 1 and the one behind the little toe is No. 5. The phalanges make up the toes. Each toe consists of three separate bones and two joints, except for the big toe, which only has two bones and one joint like the thumb in the hand. The three toe bones include the distal phalanges at the tip...

An organ is a group of tissues that work together to perform a specific task in the body, such as digesting nutrients or producing chemical messengers that enable brain cells to communicate. Although scientists hold different views on what exactly counts as an organ, the most-cited number of organs in the human body stands at 78. These include major functional units like the brain and the heart, as well as much smaller body parts, such as the tongue. (Image credit: Toa55 via Getty Images) Skin wears the crown of the heaviest organ in the human body — however, there's some discrepancy as to how much it actually weighs. Some sources state that adults carry an average 8 pounds (3.6 kilograms) of skin, while other sources say that the skin makes up about 16% of an adult's total body weight, which would suggest that a 170-pound (77-kg) adult's skin would weigh about 27 pounds (12.3 kg), for example. Why does this discrepancy exist? According to a 1949 report in the Journal of Investigative Dermatology, the larger of the two estimates counts the panniculus adiposus — a fatty tissue layer that lies between the top layers of the skin and the underlying muscle — as part of the skin, while the smaller estimate counts this tissue layer as separate. For what it's worth, the authors of the report argue against the inclusion of the panniculus adiposus and therefore conclude that skin makes up only about 6% of an adult's weight. But a modern medical reference text, the Primary Care Noteb...

The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory system, the digestive system, the excretory system, the nervous system, the endocrine system, and the reproductive system. human body, the physical substance of the human organism, composed of living Human see see For detailed coverage of the body’s biochemical see see Many entries describe the body’s major structures. For example, see Learn how a failure in the endocrine system may affect digestive, circulatory, and excretory systems The body includes nine major organ systems, each composed of various organs and tissues that work together as a functional unit. The chief constituents and prime functions of each system are summarized below. (1) The