what is femur in human body

Lever Classes. The body of femur (or shaft of femur), is the almost cylindrical, long part of the femur.It is a little broader above than in the center, broadest and somewhat flattened from before backward below. The Femur is the thigh bone. Figure: The Upper Limbs. The femur is also the longest bone in the human body. Proximal - toward or nearest the trunk or the point of origin of a part (example, the proximal end of the femur joins with the pelvic bone ). The bone is located in the thigh, and is the strongest one in the human body. When your femur is broken in any type of accident in Pensacola, you are said to have suffered a fractured femur . The tibial plateau also serves as the point of attachment for the anterior and posterior cruciate ligaments that insert on the contralateral wall of the intercondylar fossa. From the upper three-fourths of this surface the vastus intermedius arises; the lower fourth is separated from the muscle by the intervention of the synovial membrane of the knee-joint and a bursa; from the upper part of it the articularis genus takes origin. Femur: The femur is the longest bone in the human body. Grounded on academic literature and research, validated by experts, and trusted by more than 1 million users. This is the thigh bone. The tendons of sartorius and gracilis muscles also pass over (but have no attachments) to the medial condyle of the femur. Of these, a single bone, the femur or thigh bone is the longest, heaviest and strongest. The remainder of the book is a head-to-foot, structure-by-structure, bone-by-bone tour of the skeleton. More than 400 photographs and drawings and more than 80 tables illustrate and analyze features the text describes. It was previously regarded as the four separate muscles that make it up, rather than as a single muscular unit. The bones of the human body are classified into long bones, short bones, sesamoid bones, flat bones, irregular bones, and wormian bones (intra-sutural). It comprises a head, neck, trunk (which includes the thorax and abdomen), arms and hands, legs and feet.. This angle of inclination ensures that the weight of the upper body passes along the mechanical axis of the femur. There are more than 188 bones in the human body. It is bowed anteriorly, which contributes to the weight bearing capacity of the bone. It is smooth, convex, broader above and below than in the center. This disorder can be further classified based on the morphology of the bones involved. Find out more about the anatomy of the hip and knee joints using the following study units: The patella articulates with the patellar surface of the distal femur. The femur, or thigh bone, is the longest, heaviest, and strongest bone in the entire human body. The head of the bone is formed like a ball and fits into a deep socket in the pelvis called the acetabulum. Between the adductor magnus and the vastus medialis four muscles are inserted: the iliacus and pectineus above; the adductor brevis and adductor longus below. The human body is one complex network, universally accepted as the most intriguing construct. The femur is also the longest bone in the human body. Find out how your bones move thanks to joints, and the difference between movable and immovable joints. The most superomedial part is the subcapital portion; this is wider than the midcervical part but narrower than the basicervical segment. While the cruciate and meniscofemoral ligaments provide support within the synovial joint capsule, more robust ligaments are situated outside the capsule to keep the bones in line. The mechanism of injury is typically a high velocity from the distal end of the bone that is transmitted proximally. An anteroposterior plain radiograph of the pelvis will demonstrate loss of Shenton’s curve, Klein’s line, and obvious slippage of the capital epiphysis. Tibia (shinbone) 16.9 3. An essential component of the lower kinetic chain. This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1871 edition. Orthopedic Surgery 19 years experience. The study of the human body involves anatomy, … The so-called trochanteric anastomosis includes the medial and lateral circumflex femoral arteries (branches of the femoral artery) along with branches of the superior and inferior gluteal arteries. The neck of the femur connects the femoral head with the shaft of the femur. An ideal angle between the inferior margin of the femoral neck and the medial surface of the femoral shaft should be between 120 and 130 degrees. The human body is made up of a whole complex bone system, structured with its joints and differences. Covers the skeleton, the regions of the body, extremities, joints, the trunk, and the head and neck, in addition to expression and gesture. More than 130 detailed figures plus 31 plates. The thigh bone is called a femur and not only is it the strongest bone in the body, it is also the longest. It is both the longest and the strongest bone in the human body, extending from the hip to the knee. Attached to the posterior surface and the apex of the patellar. This is the longest bone in the human body, and is also known as the thigh bone. An essential component of the lower kinetic chain. Like all areas of science, there is a lot of jargon associated with anatomy and physiology. All rights reserved. Holliday obtained similar results for certain measures of body shape (e.g., femur length relative to skeletal trunk height), but he concluded that, in aggregate, Neandertal bodies are hyperpolar. Patients may provide a history of trauma and associated pain from the injury. In other cases, patients are known to have the disorder with an acute worsening of the slippage (acute on chronic). The largest bone in the human body is the femur, also known as the thigh bone. Supports the knee joint posteriorly. Calcium in bones absorbs x-rays the most, so bones look white. The great trochanter is roughly quadrangular and extends from the superior aspect of the junction of the neck and shaft of the femur. Proximally, the femur articulates with the pelvic bone. It takes an extensive amount of trauma to fracture the femur. The thigh muscles that cross the knee also provide additional support for the joint. The concern is that reducing the epiphysis to its original state may disrupt the delicate arterial anastomosis, leading to avascular necrosis of the femoral head. This article will analyze the gross anatomy of the femur. I saw through the camera the bone sticking through the skin at the top of his leg and I could not imagine it would have been a pretty sight (I could only see the top of the bone sticking up, pushing his pants legs up.). Femur, upper bone of the leg or hind leg. It is the second largest bone in the human body and is responsible for transmitting the weight of the body from the femur to the foot. Alexandra Osika (1) Femur: It is the longest bone of the body and the only bone in the thigh. The femur has two important points of articulation that provide structural support for the body: the hip joint proximally; and the knee joint distally. These are (from cranial to caudal) the plantaris muscle, the lateral head of gastrocnemius, and the popliteus muscle. The femur is the only bone located within the human thigh.It is both the longest and the strongest bone in the human body, extending from the hip to the knee. Like its counterpart, it is also associated with a lateral epicondyle, which functions as a point of attachment for the lateral collateral ligament. A lot of the large thigh muscles arise from and insert on the various parts of the femur. Last reviewed: August 05, 2021 This book comprehensively addresses the physics and engineering aspects of human physiology by using and building on first-year college physics and mathematics. The femur is the longest, strongest and heaviest bone of our skeleton system. Not only are there age-related differences in the angle of inclination, but there is also significant sexual dimorphism related to this anatomical feature as well. Connecting the head to the thinner shaft section of bone is the femoral neck. The knee joint is a relatively unstable hinge joint formed by the interaction of three bones: femoral condyles articulate with the tibial plateau (tibiofemoral joint) and the patella (patellofemoral joint). The femur is the largest bone in the human body. The femur bone is very strong in young people, but as one ages, the density of the femur bone, as well as all bones, gradually lose their density. On the other hand, the intertrochanteric crest is more pronounced than the intertrochanteric line. The interaction of these three bones requires numerous ligaments to prevent disarticulation (separation of the bones that interact at their joint). Read more. It functions in supporting the weight of the body and allowing motion of the leg. The respiratory system acts as the support system for the muscular system. She went to a physical therapist for several weeks afterward, and she healed completely in about four months. From the medial lip of the linea aspera and its prolongations above and below, the vastus medialis arises; and from the lateral lip and its upward prolongation, the vastus lateralis takes origin. It is associated with a crescent-shaped, rough, depression known as the trochanteric fossa, found on the medial surface of the apophysis. This being said I have to wonder how much force it would take to break the femur. It is a pronounced ridge on the posterior surface of the femur, which begins at the intersection of the shaft and neck of the femur. Along with the temporal bone of the skull, it is one of the two strongest bones in the body. Introduction to the musculoskeletal system, Nerves, vessels and lymphatics of the abdomen, Nerves, vessels and lymphatics of the pelvis, femur quizzes and diagram labeling activities, Trochanteric anastomosis, cruciate anastomosis, Neck of femur fractures, slipped capital femoral epiphysis, femoroacetabular impingement. 20. Both femurs naturally converge towards the knee. My friend was in an awful car accident that fractured her femur bone. Read more. In young ones, these fractures knit back together amazingly quick. Trauma is the most common mechanism of injury for pathologies of the femur. slipped capital femoral epiphysis or femoroacetabular impingement). It is rough and elongated along the long axis of the shaft; on the proximal posterior surface of the femur. This little known plugin reveals the answer. I heard that he was out for the season and had to quit football after this injury due to the long rehabilitation and the time it took for his leg to heal. The long bones include femur, tibia, fibula, radius, ulna, and humerus. Distally, it interacts with the patella and the proximal aspect of the tibia. This neck-shaft angle (angle of inclination) is larger in infants and gradually decreases to the previously stated angle. The femur is the longest bone in the human skeleton. The femur is the lengthiest bone in the human body. The femur is the largest bone in the human body. It acts as the site of origin and attachment of many muscles and ligaments, and can be divided into three parts; proximal, shaft and distal.. This is an AV2 media enhanced book. A unique book code printed on page 2 unlocks multimedia content that brings the book to life. This book comes alive with audio, video, weblinks, slideshows, activities quizzes, and much more. Attached to the fovea of the femoral head and the center of the acetabulum. 60 seconds. The femur is the longest, thickest, and strongest bone in the human body. Simplify your learning by taking a look at the following resources: The femur is an integral component of ambulation. Found inside – Page 2... abdomen That part of the body between the diaphragm and pelvis. abduction ... head of the femur fits. acetoacetic acid One of the ketone bodies formed ... It is present in the lower limb between the hip and the knee … Found insideBuilding on the success of their previous book, White and Folkens' The Human Bone Manual is intended for use outside the laboratory and classroom, by professional forensic scientists, anthropologists and researchers. Inserts on the tibial tuberosity. What is fractured femur? Radius (outer lower arm) 10.4 7. All of the body’s weight is supported by the femurs during many activities, such as running, jumping, walking, and standing. It is commonly known as the thigh bone (femur is Latin for thigh) and reaches from the hip to the knee. It can support 30 times the weight of a person's body. Blends with the fibers of the tendon of rectus femoris anteriorly. It is the longest and strongest bone of the human body. Femur, or thighbone, is the largest bone in your body. The lateral ridge termed the gluteal tuberosity is very rough, and runs almost vertically upward to the base of the greater trochanter. It allows the lower leg to move relative to the thigh while supporting the body’s weight. The femur supports the weight of the leg as well as attaches it to the hip bone, so this means that if something bad were to happen such as a severe fracture or break once the leg heals it will not be as strong as it was before and the person may have severe complications later in their life. 4.The Lower limbs or hind arm: The lower limb contains a total of \(60\) bones i.e., \(30\) on each side.The lower limb consists of the following bones: femur, tibia, fibula, patella, tarsals, metatarsals, and phalanges. As you can see in this Femur bone is strongest (spanning from the hip to the knee) the compact bone is present in the shaft and of course, it is very compact.
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