What are the parts of the linea aspera?
Anatomical Parts. Description. The linea aspera is a prominent longitudinal ridge or crest, on the middle third of the bone, presenting a medial and a lateral lip, and a narrow rough, intermediate line. Above, the linea aspera is prolonged by three ridges.
What is the difference between medial lip and linea aspera?
(Linea aspera not labeled, but region is visible. Medial lip is at left; lateral lip is at right.) The linea aspera ( Latin: rough line) is a ridge of roughened surface on the posterior surface of the shaft of the femur. It is the site of attachments of muscles and the intermuscular septum . Its margins diverge above and below.
What muscles attach to the linea aspera to form ridges?
The tension generated by muscle attached to the bones is responsible for the formation of the ridges. A number of muscles attach to the linea aspera: From the medial lip of the linea aspera and its prolongations above and below, the vastus medialis muscle originates.
Which prominent arch runs along the medial side of the foot from the calcaneus?
Which prominent arch runs along the medial side of the foot from the calcaneus to metatarsals I-III? medial longitudinal arch.
Which bone feature of the pelvic bone is the articulation site for the femur?
The acetabulum is the cup-shaped socket on the lateral aspect of the pelvis, which articulates with the head of the femur to form the hip joint.
What bone features are commonly called the ankle bones?
The ankle is a large joint made up of three bones:The shin bone (tibia)The thinner bone running next to the shin bone (fibula)A foot bone that sits above the heel bone (talus)
Which of the following bone features on the proximal femur is the site of a ligament attachment from the?
The rounded, proximal end is the head of the femur, which articulates with the acetabulum of the hip bone to form the hip joint. The fovea capitis is a minor indentation on the medial side of the femoral head that serves as the site of attachment for the ligament of the head of the femur.
What bones articulate with pelvic girdle?
The pelvic girdle consists of the two coxal bones (= pelvic or innominate or hip bones). These articulate with the sacrum behind at the sacroiliac joint, and with each other in front at the pubic symphysis.
Which bone feature is also an articular surface?
Facet. The facet is a flat smooth area of the bone which serves as an articular surface. Example: acromial facet of clavicle.
Which malleolus is more prominent?
Lateral malleolus: The bony prominence on the lateral side of the ankle joint. It is formed by the inferior end of the fibula. The tubercle of the fifth metatarsal: The most prominent bony structure approximately at the middle of the lateral border of the foot.
What is the name of the prominence on the medial surface of the ankle?
The medial malleolus is the prominence on the inner side of the ankle, formed by the lower end of the tibia. The lateral malleolus is the prominence on the outer side of the ankle, formed by the lower end of the fibula.
What is the talus also known as?
The talus (plural: tali 4), also known as the astragalus 4, is a tarsal bone in the hindfoot that articulates with the tibia, fibula, calcaneus, and navicular bones. It has no muscular attachments and around 60% of its surface is covered by articular cartilage.
What are the major features of the proximal portion of the femur?
Answer and Explanation: Th major features of the proximal femur are the head, greater trochanter, and lesser trochanter.
Which of the following features is the most proximal feature of the ulna?
Which of the following features is the most proximal feature of the ulna? When the bones of the forearm are supinated (palm of the hand faces anteriorly), the radius is crossing over the ulna.
Where is the proximal femur?
Proximal femur includes the femoral head, neck and the region 5-cm distal to the lesser trochanter. There is a 125°–130° inclination angle between the head and neck and the femoral body. Further, there is a 15° anteversion angle between the plane passing through the condyles of the femoral head and the femur neck.
What parts of the femur are involved in the hip joint?
The hip joint consists of two main parts:Femoral head – a ball-shaped piece of bone located at the top of your thigh bone, or femur.Acetabulum – a socket in your pelvis into which the femoral head fits.
What part of the femur articulates with the tibia to form the knee joint?
medial condylesSimilarly, the smooth region of the distal and posterior medial femur is the medial condyle of the femur, and the irregular outer, medial side of this is the medial epicondyle of the femur. The lateral and medial condyles articulate with the tibia to form the knee joint.
Which landmark is found on the anterior surface of the femur?
On the anterior surface of the distal femur, toward the anterior apex of the intercondylar fossa is an area known as the patellar surface or trochlear groove.
What is the only tarsal that articulates with the leg?
The talus (astragalus) articulates above with the bones of the lower leg to form the ankle joint. The other six tarsals, tightly bound together by ligaments below the talus, function as a strong weight-bearing platform. The calcaneus, or heel bone, is the largest tarsal and forms the prominence at the back of the foot.
Which bone is the strongest and longest?
4 Function of Linea Aspera. The femur is considered to be the strongest and longest bone in the body. It is the only bone that is found in the upper legs and it extends from the pelvis to the knee. Like every other bone in the body, it has marks and features that makes them an ability to connect to other bones.
What is the LA in anatomy?
When translated from Latin, LA means “rough line.”. LA is the roughened, longitudinal irregular crest that is composed of 2 lips. This feature is the insertion site of the adductor thigh muscle.
What is the most common type of LA?
Variform LA is considered to be the most common type found in humans accounting for around 40%. The parallel and concave types make up about of 25% each while the convex type is about 5% of the population [5]. Knowing all the possible variations of the LA will be beneficial in detecting possible tumor growth such as a calcinosis-like growth ...
Where does the vastus medialis originate?
The vastus medialis originates from the medial lip of the LA while the vastus lateralis attaches from the lateral lip. The adductor magnus is inserted into the LA and between this muscle and the vastus lateralis is where the gluteus maximus and the short head of the biceps femoris originate [4, 5].
Where is the LA formed?
It has been hypothesized that the LA is formed where the axial intracortical stress is the greatest. This location stiffens the femur effectively during bending [2, 4]. This ridge on the femur serve as the insertion point of several muscles.
Why is the LA important for hip arthroplasty?
In a cemented total hip arthroplasty, the LA is an important area for the protection against fat embolism [3, 5]. The location of the principal nutrient foramina is very important for orthopedic surgery. The foramina is found on the LA in 72.5% of the population.