What is calcar femoris?

The calcar femorale is a spur of thickened bone that lies deep to the lesser trochanter but posterior to the neutral axis of the femoral neck. The calcar is thickest medially where it joins the compression buttress of the neck and gradually thins as it passes laterally.

What is the function of calcar femorale?

The calcar femorale or ‘true neck’ of the femur has a role in transmitting load from the cantilevered neck to the femoral shaft (Zhang 2009).

What are calcar bats?

The calcar, also known as the calcaneum, is the name given to a spur of cartilage arising from inner side of ankle and running along part of outer interfemoral membrane in bats, as well as to a similar spur on the legs of some arthropods.

Which artery supplies the head of femur?

femoral artery The majority of the blood supply to the head of the femur comes from the medial and lateral circumflex branches of the profunda femoris, which itself is a branch of the femoral artery (the profunda femoris is the deep penetrating branch of the upper thigh).

Where is the linea aspera of the femur?

The linea aspera is the rough, longitudinal, irregular crest on the posterior surface of the shaft of the femur. It is formed by the joining of lateral and medial lips, which may be separated by up to 10 mm [1]. It is divided distally into medial and lateral supracondylar ridges.

What is a bipolar hemiarthroplasty?

This surgical procedure replaces the head of a damaged femur with an implant designed to stabilize the femur and restore hip function. Unlike total hip replacement, in which both the ball of the femur and the hip socket are replaced, in this procedure, only the ball is replaced.

What is Calcar Avis?

The Calcar avis is a mound of white matter formed by the development of the calcarine fissure. This fissure begins to develop at 16 weeks of gestation and extends progressively deeply from the medial aspect of the occipital lobe towards the occipital horn of the lateral ventricles.

What is the calcar of humerus?

The humeral calcar refers to the inferomedial cortical area where the humeral head extends to the surgical neck of the humerus. Morphological and microstructural analysis of the proximal humerus shows that this area is the best in terms of the thickness and density of the cortical bone.

What attaches to the intertrochanteric line?

The joint capsule of the hip and the iliofemoral ligament insert on the intertrochanteric line. Furthermore, the vastus medialis muscle originates from the inferior portion of the intertrochanteric line.

Where is the calcar bone?

The calcar is a vertical plate of dense cancellous bone which lies deep to the lesser trochanter but posterior to the neutral axis of the femoral neck.

How many carpal bones are in a bat?

There are eight carpal bones, which divide into two rows: a proximal row and a distal row.

Why do bats hang upside down?

Because of their unique physical abilities, bats can safely roost in places where predators cannot get them. To sleep, bats hang themselves upside down in a cave or hollow tree, with their wings draped around their bodies like cloaks. They hang upside down to hibernate and even upon death.

What is the head of femur called?

The “ball” is known anatomically as the femoral head; the “socket” is part of the pelvis known as the acetabulum. Both the femoral head and the acetabulum are coated with articular cartilage.

What is femoral head?

The ball is the femoral head, which is the upper end of the femur (thighbone). The surface of the ball and socket is covered with articular cartilage, a smooth, slippery substance that protects the bones and enables them to glide easily across each other.

What is the femoral head made of?

Femoral heads are usually made with metals or ceramic material, Co-Cr-Mo-cast alloys, stainless steel and alumina (pure or BIOLOX delta), or zirconia are the most commonly employed materials for this application.

Is linea aspera?

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. …

Linea aspera
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Anatomical terms of bone

Why is it called the linea aspera?

History and etymology. In Latin, linea means line and aspera means rough ⁷.

What muscle inserts at linea aspera?

Adductor magnus The Adductor magnus is inserted into the linea aspera, and to its lateral prolongation above, and its medial prolongation below. Between the Vastus lateralis and the Adductor magnus two muscles are attached—viz., the Glutæus maximus inserted above, and the short head of the Biceps femoris arising below.

What is the difference between hemiarthroplasty and bipolar?

Hemiarthroplasty means replacing the hip joint with a metal prosthesis. Unipolar prostheses has a one-piece design where the hip movement occurs between the prosthesis and the acetabulum (hip socket). A bipolar prosthesis has an additional artificial joint between the two components of the prosthesis.

What do bipolar mean?

Bipolar disorder, formerly called manic depression, is a mental health condition that causes extreme mood swings that include emotional highs (mania or hypomania) and lows (depression). When you become depressed, you may feel sad or hopeless and lose interest or pleasure in most activities.

Can femoral neck be replaced?

This procedure is used if the end of the bones is damaged or displaced. It involves removing the head and neck of the femur and replacing it with a metal prosthesis. Partial hip replacement may also be recommended for adults with other serious medical conditions, rather than a total hip replacement.

Where is the collateral eminence?

The collateral eminence is an elongated swelling lying lateral to and parallel with the hippocampus. It corresponds with the middle part of the collateral fissure, and its size depends on the depth and direction of this fissure.

What part of the brain contains lateral ventricles?

Each lateral ventricle is a C-shaped cavity located deep within the cerebrum. As the lateral ventricle wraps around the thalamus or the central core of the brain, other structures within the ventricle also assume a C-shaped form: the choroidal fissure, the fornix, the caudate nucleus, and the choroid plexus.

Which of the following structures forms the lateral wall of the body of the lateral ventricle?

The frontal horn (Fig 1) extends anteriorly from the foramina of Monro and communicates with the body of the lateral ventricles posteriorly. The anterior wall and roof are formed by the genu of the corpus callosum, and the floor is formed by the rostrum. The head of the caudate nucleus forms the lateral wall.

What is medial calcar?

Intact medial calcar was defined as the length of the posteromedial metaphyseal extension ≥8 mm on the 20° external rotation anteroposterior radiograph. Those with the posteromedial metaphyseal extension <8 mm were considered as disrupted medial calcar according to the radiographic criteria of Hertel et al. [5].

What important ligament attaches superior to the intertrochanteric line?

iliofemoral ligament The iliofemoral ligament — the largest ligament of the human body — attaches above the line which also strengthens the capsule of the hip joint.

What attaches to intertrochanteric crest?

along the back part of the body: it is called the linea quadrata, and gives attachment to the Quadratus femoris and a few fibers of the Adductor magnus. Generally there is merely a slight thickening about the middle of the intertrochanteric crest, marking the attachment of the upper part of the Quadratus femoris.

What muscle inserts on the intertrochanteric crest?

The quadratus femoris is a short, strong, rectangular muscle that originates on the ischial tuberosity and inserts onto the intertrochanteric crest.