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The knee is a complicated joint. It is located at a very crucial part of our bodies and provides us with the stability we need for our support, balance, and ability to walk. The thigh bone, shin bone, and knee cap all come together to form the knee joint. So you can see that there is alot of things going on in this area that require smooth and accurate mechanics for the proper operation of these parts. Many things can affect the knee and knee joint. Deterioration from aging, disease, hereditary factors, the environment, or injury can cause all kinds of abnormalities to be present in and around the joint that can make it difficult for it to function correctly. Osteoarthritis is one of the most common factors that effect the knee. it occurs when the cartilage around the ends of the thigh bone and shin bone deteriorate leaving no cushion for the bones. You then have bone on bone

          The knee is a complicated joint. It is located at a very crucial part of our bodies
and provides us with the stability we need for our support, balance, and ability to
walk.
The thigh bone, shin bone, and knee cap all come together to form the knee joint.
So you can see that there is alot of things going on in this area that require
smooth and accurate mechanics for the proper operation of these parts. Many
things can affect the knee and knee joint. Deterioration from aging, disease,
hereditary factors, the environment, or injury can cause all kinds of abnormalities
to be present in and around the joint that can make it difficult for it to function
correctly. Osteoarthritis is one of the most common factors that effect the knee.
it occurs when the cartilage around the ends of the thigh bone and shin bone
deteriorate leaving no cushion for the bones. You then have bone on bone
        
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The knee is a complicated joint. It is located at a very crucial part of our bodies
and provides us with the stability we need for our support, balance, and ability to
walk.
The thigh bone, shin bone, and knee cap all come together to form the knee joint.
So you can see that there is alot of things going on in this area that require
smooth and accurate mechanics for the proper operation of these parts. Many
things can affect the knee and knee joint. Deterioration from aging, disease,
hereditary factors, the environment, or injury can cause all kinds of abnormalities
to be present in and around the joint that can make it difficult for it to function
correctly. Osteoarthritis is one of the most common factors that effect the knee.
it occurs when the cartilage around the ends of the thigh bone and shin bone
deteriorate leaving no cushion for the bones. You then have bone on bone

Added by Kimberly B.

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Biology for AP Courses
Biology for AP Courses
Julianne Zedalis, John Eggebrecht
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The knee is a complicated joint. It is located at a very crucial part of our bodies and provides us with the stability we need for our support, balance, and ability to walk. The thigh bone, shin bone, and kneecap all come together to form the knee joint. So you can see that there are a lot of things going on in this area that require smooth and accurate mechanics for the proper operation of these parts. Many things can affect the knee and knee joint. Deterioration from aging, disease, hereditary factors, the environment, or injury can cause all kinds of abnormalities to be present in and around the joint that can make it difficult for it to function correctly. Osteoarthritis is one of the most common factors that affect the knee. It occurs when the cartilage around the ends of the thigh bone and shin bone deteriorates, leaving no cushion for the bones. You then have bone on bone.
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complete-each-sentence-by-dragging-the-proper-word-or-phrase-into-the-appropriate-position-fibular-collateral-the-joint-is-an-extremely-complicated-synovial-joint-due-to-its-potential-for-mu-87796

The knee joint is an extremely complicated synovial joint due to its potential for multiaxial motion when flexed. Increasing the depth of the articular surface of the knee, much like the labra of the shoulder and hip, are fibrocartilaginous extensions of the synovial membrane called menisci. Connecting the medial and lateral menisci across the center of the articular surface, the fibular collateral ligament provides a strut against separation. Protecting the knee from medial displacement due to laterally applied forces, the posterior cruciate ligament is one of the two major extracapsular ligaments of the knee. Laterally bracing the lateral femoral condyle to the fibular head, the tibial collateral ligament resists lateral separation of the knee due to medially applied forces. Spanning anteromedially from the lateral condyle of the femur, the transverse ligament attaches to the tibia anteriorly at the intercondylar eminence. The tibiofemoral ligament resists posterior and lateral movement of the tibia. Its fibers originate superomedially on the femur and attach posterolaterally on the tibia. The anterior cruciate ligament is responsible for resisting anterior movement of the tibia.

Madhur L.

1-although-both-joints-of-the-knee-are-synovial-joints-they-are-classified-differently-the-tibiofemoral-joint-is-considered-a-____-joint-whereas-the-patellofemoral-joint-is-considered-a-____-04312

Although both joints of the knee are synovial joints, they are classified differently. The tibiofemoral joint is considered a modified hinge joint whereas the patellofemoral joint is considered a gliding joint.

Adi S.

forces-on-the-kneecap-when-you-bend-your-knee-the-quadriceps-muscle-is-stretched-this-increases-the-tension-in-the-quadriceps-tendon-f-attached-to-your-kneecap-patella-which-in-turn-increase-39116

Forces on the kneecap. When you bend your knee, the quadriceps muscle is stretched. This increases the tension in the quadriceps tendon (Fq) attached to your kneecap (patella), which, in turn, increases the tension in the patella tendon (Fp) that attaches your kneecap to your lower leg bone (tibia). Simultaneously, the end of your upper leg bone (femur) pushes outward on the patella; we can label this force as Ff (force from the femur). The figure below shows how these parts of a knee joint are arranged. a. Draw a free body diagram for the patella by clicking and dragging the tip of the vectors shown in the interactive graph to the right, assuming the patella is stationary and the forces in the tendons act in the direction shown in the diagram. Ignore the weight of the patella (it's small), and estimate the direction of Ff (you will calculate it in part b.). You will be awarded marks for having the correct angle for each of the 3 vectors, the length of the vectors will not be graded. There is a tolerance of ±1° for the last two angles (they should be easy), and a tolerance of ±20° for Ff (since it is just an estimate to get you started). Note that the boxes below will automatically fill in when you submit or preview your answers based on the orientation of the vectors in the diagram. Angle of Ff: 204.13377886022428 Angle of Fp: 42.30163101181886 Angle of Fq: 90.38190985537388

Sri K.


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Transcript

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00:01 Hello students, in this question they have asked to complete each sentence by using appropriate words.
00:06 First one is they have asked to identify the joint which is an extremely complicated synovial joint due to its potential for multi -axial motion when flexed.
00:18 The right answer for this is tibio femoral joint is considered to be an extremely complicated synovial joint.
00:29 Next question is they have asked increasing depth of articular surface of knee much like the labra of shoulder and hip are fibrocartilaginous extensions of synovial membrane called.
00:43 The right answer for this is menisci.
00:51 Next connecting the medial and lateral menisci across the center of the articular surface the dashed ligament provides a strut against separation.
01:03 The right answer for this is transverse ligament.
01:12 Next question is protecting the knee from medial displacement due to laterally applied forces the dashed ligament is one of the two major extra capsular ligaments of the knee.
01:26 The right answer is febrile collateral ligament...
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