Where is Notch of Rivinus?
Where is Notch of Rivinus?
The Notch of Rivinus is a small defect in the posterior edge of the bony annular tympanic ring. The defect is located just superior to the tympano-mastoid suture line in the posterior ear canal.
What is the notch of the knee?
The intercondylar fossa of femur (intercondyloid fossa of femur, intercondylar notch of femur) is a deep notch between the rear surfaces of the medial and lateral epicondyle of the femur, two protrusions on the distal end of the femur (thigh bone) that joins the knee.
What is tympanic notch?
The tympanic notch (Notch of Rivinus) is a small defect in the posterior edge of the bony annular tympanic ring. Just superior to this the Notch of Rivinus can be seen and the neck of the malleus occupies the notch and often is the superior limit of a tympanomeatal flap.
What is the intercondylar notch width?
The intercondylar notch is subject to change throughout life, narrowing more distally and widening more proximally. Its width ranges from 16.23 ± 2.71 mm before the age of 11 years to 19.38 ± 2.90 mm in middle age and then decreases to 18.6 ± 2.36 mm after the age of 60 years.
What is fissure of Santorini?
The fissures of Santorini are natural openings within the anterior cartilage in the lateral aspect of the canal that may allow infectious or neoplastic processes to extend from the parotid gland to the canal or the opposite scenario (Fig. 2a, b) .
What is the function of the intercondylar notch?
Function of the Intercondylar Fossa As it was mentioned before, the intercondylar fossa helps to stabilize the knee joint. The reason why this groove at the bottom rear of the femur helps to stabilize the knee joint is that it is home to several ligaments of the knee.
What sits in the intercondylar notch?
The intercondylar notch is the open space that lies between the medial and lateral femoral condyles of the distal femur and houses the substance of both the anterior and posterior cruciate ligaments.
What is mean by rivinus?
The duct of Rivinus connects the sublingual gland to the floor of the mouth. Despite its name, it is not a single duct, but numerous small ducts all of which open into the floor of the mouth and are collectively termed the duct of Rivinus.
Where is the notch of Rivinus located in the ear?
The Notch of Rivinus is a small defect in the posterior edge of the bony annular tympanic ring. The defect is located just superior to the tympano-mastoid suture line in the posterior ear canal . Following identification of the spine of Henle it is possible to follow the tympano-mastoid suture line medially towards the annular ring.
Which is superior the notch of Rivinus or the malleus?
Just superior to this the Notch of Rivinus can be seen and the neck of the malleus occupies the notch and often is the superior limit of a tympanomeatal flap.
What makes the knee a synovial hinge joint?
In technical terms, the knee is a synovial hinge joint, but what does that mean? A synovial joint has a joint capsule which is like a sac surrounding the joint. The capsule contains synovial fluid which nourishes and lubricates the joint allowing it to move smoothly and painlessly – a bit like the oil in your car.
Which is the weight bearing part of the knee joint?
It is the weight-bearing component of the knee joint. Patellofemoral – anterior aspect of the distal femur articulates with the patella. It allows the tendon of the quadriceps femoris (knee extensor) to be inserted directly over the knee – increasing the efficiency of the muscle.