Femur in the context of Lower extremities


Femur in the context of Lower extremities

Femur Study page number 1 of 2

Play TriviaQuestions Online!

or

Skip to study material about Femur in the context of "Lower extremities"


⭐ Core Definition: Femur

The femur (/ˈfmər/; pl.: femurs or femora /ˈfɛmərə/), or thigh bone is the only bone in the thigh — the region of the lower limb between the hip and the knee. In many four-legged animals, the femur is the upper bone of the hindleg.

The top of the femur fits into a socket in the pelvis called the hip joint, and the bottom of the femur connects to the shinbone (tibia) and kneecap (patella) to form the knee. In humans the femur is the largest and thickest bone in the body.

↓ Menu
HINT:

In this Dossier

Femur in the context of Homo erectus

Homo erectus (/ˌhm əˈrɛktəs/ lit.'upright man') is an extinct species of archaic human from the Pleistocene, spanning nearly 2 million years. It is the first human species to evolve a humanlike body plan and gait, to leave Africa and colonize Asia and Europe, and to wield fire. Some populations of H. erectus were ancestors of later human species, including H. heidelbergensis — the last common ancestor of modern humans, Neanderthals, and Denisovans. As such a widely distributed species both geographically and temporally, H. erectus anatomy varies considerably. Subspecies are sometimes recognized: H. e. erectus, H. e. pekinensis, H. e. soloensis, H. e. ergaster, H. e. georgicus, and H. e. tautavelensis.

The species was first described by Eugène Dubois in 1893 as "Pithecanthropus erectus" using a skullcap, molar, and femur from Java, Indonesia. Further discoveries around East Asia were used to contend that humanity evolved out of Asia. Based on historical race concepts, it was argued that local H. erectus populations evolved directly into local modern human populations (polycentrism) rather than all humanity sharing a single anatomically modern ancestor (monogenism). As the fossil record improved over the mid-to-late 20th century, "Out of Africa" theory and monogenism became the consensus.

View the full Wikipedia page for Homo erectus
↑ Return to Menu

Femur in the context of Prehistoric music

Prehistoric music (previously called primitive music) is a term in the history of music for all music produced in preliterate cultures (prehistory), beginning somewhere in very late geological history. Prehistoric music is followed by ancient music in different parts of the world, but still exists in isolated areas. However, it is more common to refer to the "prehistoric" music which still survives as folk, indigenous or traditional music. Prehistoric music is studied alongside other periods within music archaeology.

Findings from Paleolithic archaeology sites suggest that prehistoric people used carving and piercing tools to create instruments. Archeologists have found Paleolithic flutes carved from bones in which lateral holes have been pierced. The disputed Divje Babe flute, a perforated cave bear femur, is at least 40,000 years old. Instruments such as the seven-holed flute and various types of stringed instruments, such as the Ravanahatha, have been recovered from the Indus Valley civilization archaeological sites.

View the full Wikipedia page for Prehistoric music
↑ Return to Menu

Femur in the context of Human leg

The leg is the entire lower limb of the human body, including the foot, thigh or sometimes even the hip or buttock region. The major bones of the leg are the femur (thigh bone), tibia (shin bone), and adjacent fibula. There are thirty bones in each leg.

The thigh is located in between the hip and knee.

View the full Wikipedia page for Human leg
↑ Return to Menu

Femur in the context of Java Man

Java Man (Homo erectus erectus, formerly also Anthropopithecus erectus or Pithecanthropus erectus) is an early human fossil discovered in 1891 and 1892 on the island of Java (Indonesia). Estimated to be between 700,000 and 1,490,000 years old, it was, at the time of its discovery, the oldest hominid fossil ever found, and it remains the type specimen for Homo erectus.

Led by Eugène Dubois, the excavation team uncovered a tooth, a skullcap, and a thighbone at Trinil on the banks of the Solo River in East Java. Arguing that the fossils represented the "missing link" between apes and humans, Dubois gave the species the scientific name Anthropopithecus erectus, then later renamed it Pithecanthropus erectus. The fossil aroused much controversy. Within a decade of the discovery almost eighty books or articles had been published on Dubois's finds. Despite Dubois's argument, few accepted that Java Man was a transitional form between apes and humans. Some dismissed the fossils as apes and others as modern humans, whereas many scientists considered Java Man as a primitive side branch of evolution not related to modern humans at all. In the 1930s Dubois made the claim that Pithecanthropus was built like a "giant gibbon", a much misinterpreted attempt by Dubois to prove that it was the "missing link". Eventually, similarities between Java Man and Sinanthropus pekinensis (Peking Man) led Ernst Mayr to rename both Homo erectus in 1950, placing them directly in the human evolutionary tree.

View the full Wikipedia page for Java Man
↑ Return to Menu

Femur in the context of Telecrex

Telecrex is an extinct genus of birds related to guineafowl, containing two species, Telecrex grangeri (the type species) and Telecrex peregrinus. T. grangeri is known from a single partial femur from Eocene deposits in Inner Mongolia, while T. peregrinus was found in France.

View the full Wikipedia page for Telecrex
↑ Return to Menu

Femur in the context of Slipped capital femoral epiphysis

Slipped capital femoral epiphysis (SCFE, or skiffy), or slipped upper femoral epiphysis (SUFE, or souffy), or coxa vara adolescentium, is a medical term referring to a fracture through the growth plate (physis), which results in slippage of the overlying end of the femur (metaphysis).

Normally, the head of the femur, called the caput femoris in Latin, should sit squarely on the femoral neck. Abnormal movement along the growth plate results in the slip. The term slipped capital femoral epiphysis is actually a misnomer, because the epiphysis (end part of a bone) remains in its normal anatomical position in the acetabulum (hip socket) due to the ligamentum teres femoris. It is actually the metaphysis (neck part of a bone) which slips in an anterior direction with external rotation.

View the full Wikipedia page for Slipped capital femoral epiphysis
↑ Return to Menu

Femur in the context of Plantigrade

In terrestrial animals, plantigrade locomotion means walking with the toes and metatarsals flat on the ground. It is one of three forms of locomotion adopted by terrestrial mammals. The other options are digitigrade, walking on the toes and fingers with the heel and wrist permanently raised, and unguligrade, walking on the nail or nails of the toes (the hoof) with the heel/wrist and the digits permanently raised. The leg of a plantigrade mammal includes the bones of the upper leg (femur/humerus) and lower leg (tibia and fibula/radius and ulna). The leg of a digitigrade mammal also includes the metatarsals/metacarpals, the bones that in a human compose the arch of the foot and the palm of the hand. The leg of an unguligrade mammal also includes the phalanges, the finger and toe bones.

Among extinct animals, most early mammals such as pantodonts were plantigrade. A plantigrade foot is the primitive condition for mammals; digitigrade and unguligrade locomotion evolved later. Among archosaurs, the pterosaurs were partially plantigrade and walked on the whole of the hind foot and the fingers of the hand-wing. Out of the plantigrade animals, only a few, such as humans, kangaroos and certain rodents, are obligate bipeds, while most others are functional bipeds.

View the full Wikipedia page for Plantigrade
↑ Return to Menu

Femur in the context of Hip joint

In vertebrate anatomy, the hip, or coxa (pl.: coxae) in medical terminology, refers to either an anatomical region or a joint on the outer (lateral) side of the pelvis.

The hip region is located lateral and anterior to the gluteal region, inferior to the iliac crest, and lateral to the obturator foramen, with muscle tendons and soft tissues overlying the greater trochanter of the femur. In adults, the three pelvic bones (ilium, ischium and pubis) have fused into one hip bone, which forms the superomedial/deep wall of the hip region.

View the full Wikipedia page for Hip joint
↑ Return to Menu

Femur in the context of Divje Babe flute

The Divje Babe flute, also called tidldibab, is a cave bear femur pierced by spaced holes that was unearthed in 1995 during systematic archaeological excavations led by the Institute of Archaeology of the Research Centre of the Slovenian Academy of Sciences and Arts, at the Divje Babe I near Cerkno in northwestern Slovenia. It has been suggested that it was made by Neanderthals as a form of musical instrument, and became known as the Neanderthal flute. The artifact is on prominent public display in the National Museum of Slovenia in Ljubljana as a Neanderthal flute. As such, it would be the world's oldest known musical instrument.

This claim was met with severe criticism and dispute within the scientific community. There are no other known instances of a Neanderthal musical instrument, and such a find from the Middle Paleolithic (Mousterian) might indicate previously unknown symbolic behavior among Neanderthals.

View the full Wikipedia page for Divje Babe flute
↑ Return to Menu

Femur in the context of Thigh

In anatomy, the thigh is the area between the hip (pelvis) and the knee. Anatomically, it is part of the lower limb.

The single bone in the thigh is called the femur. This bone is very thick and strong (due to the high proportion of bone tissue), and forms a ball and socket joint at the hip, and a modified hinge joint at the knee.

View the full Wikipedia page for Thigh
↑ Return to Menu

Femur in the context of Gluteal muscles

The gluteal muscles, often called glutes, are a group of three muscles which make up the gluteal region commonly known as the buttocks: the gluteus maximus, gluteus medius and gluteus minimus. The three muscles originate from the ilium and sacrum and insert on the femur. The functions of the muscles include extension, abduction, external rotation, and internal rotation of the hip joint.

View the full Wikipedia page for Gluteal muscles
↑ Return to Menu

Femur in the context of Tibia

The tibia (/ˈtɪbiə/; pl.: tibiae /ˈtɪbii/ or tibias), also known as the shinbone or shankbone, is the larger, stronger, and anterior (frontal) of the two bones in the leg below the knee in vertebrates (the other being the fibula, behind and to the outside of the tibia); it connects the knee with the ankle. The tibia is found on the medial side of the leg next to the fibula and closer to the median plane. The tibia is connected to the fibula by the interosseous membrane of leg, forming a type of fibrous joint called a syndesmosis with very little movement. The tibia is named for the flute tibia. It is the second largest bone in the human body, after the femur. The leg bones are the strongest long bones as they support the rest of the body.

View the full Wikipedia page for Tibia
↑ Return to Menu

Femur in the context of Knee

In humans and other primates, the knee joins the thigh with the leg and consists of two joints: one between the femur and tibia (tibiofemoral joint), and one between the femur and patella (patellofemoral joint). It is the largest joint in the human body. The knee is a modified hinge joint, which permits flexion and extension as well as slight internal and external rotation. The knee is vulnerable to injury and to the development of osteoarthritis.

It is often termed a compound joint having tibiofemoral and patellofemoral components. (The fibular collateral ligament is often considered with tibiofemoral components.)

View the full Wikipedia page for Knee
↑ Return to Menu

Femur in the context of Kabwe 1

14°27′36″S 28°25′34″E / 14.460°S 28.426°E / -14.460; 28.426

Kabwe 1, also known as Broken Hill Man or Rhodesian Man, is a nearly complete archaic human skull discovered in 1921 at the Kabwe mine, Zambia (at the time, Broken Hill mine, Northern Rhodesia). It dates to around 300,000 years ago, possibly contemporaneous with modern humans and Homo naledi. It was the first archaic human fossil discovered in Africa. Kabwe 1 was found near an exceptionally well-preserved tibia, as well as a femoral fragment and potentially other bones whose provenance is uncertain. The fossils were sent to the British Museum, where English palaeontologist Sir Arthur Smith Woodward described them as a new species: Homo rhodesiensis. Kabwe 1 is now generally classified as H. heidelbergensis. Zambia is negotiating with the UK for repatriation of the fossil.

View the full Wikipedia page for Kabwe 1
↑ Return to Menu