What membrane is in the knee?
This is a curved part of cartilage in the knees and other joints. Synovial membrane. A tissue called the synovial membrane lines the joint and seals it into a joint capsule. The synovial membrane secretes synovial fluid (a clear, sticky fluid) around the joint to lubricate it.
What is the structure of the knee?
The knee joint is formed by the thighbone, or femur, and the tibia, the larger of the two lower leg bones. The fibula, the smaller of the lower leg bones, fits into a depression of the tibia. The knee joint permits both a hinge-like motion between the upper and lower leg and a slight side-to-side motion.
What are the 4 compartments of the knee?
Anatomy of the Knee
- The three compartments of the knee joint are:
- Medial Compartment (inner side of knee) 1 – medial femoral condyle. 2 – medial tibial plateau.
- Patellofemoral Compartment (front of knee) 4 – patella (kneecap)
- Lateral Compartment (outer side of knee) 5 – lateral femoral condyle.
What are the 3 components of the knee?
The knee consists of three bones:
- femur – the upper leg bone, or thigh bone.
- tibia – the bone at the front of the lower leg, or shin bone.
- patella – the thick, triangular bone that sits over the other bones at the front of the knee, or kneecap.
How many cartilages are in the knee?
There are two kinds of cartilage in the knee: Articular cartilage sits at the end of a bone to provide a slippery surface that allows the two bones of the joint to glide easily against one another.
What tendons are in the knee?
Tendons are the reason a muscle can move the bones in our body when muscles contract. The tendons involved in the knee include the quadriceps tendon, the patella tendon, hamstring tendons, and the iliotibial band.
What surrounds the knee joint?
The joint capsule is a membrane bag that surrounds the knee joint. It is filled with a liquid called synovial fluid, which lubricates and nourishes the joint.
How many ligaments are in the knee?
There are 4 major ligaments in the knee. The ligaments in the knee connect the femur (thighbone) to the tibia (shin bone), and include the following: Anterior cruciate ligament (ACL). The ligament, located in the center of the knee, that controls rotation and forward movement of the tibia (shin bone).
How many compartments are in the knee joint?
The knee is divided into three major compartments: Medial compartment (the inside part of the knee) Lateral compartment (the outside part of the knee) Patellofemoral compartment (the front of the knee between the kneecap and thighbone)
What are knees made of?
The knee is a hinge joint made up of two bones, the thighbone (femur) and the shinbone (tibia). There are two round knobs at the end of the femur called femoral condyles which articulate with the flat surface of the tibia called the tibial plateau.
What are kneecaps made of?
Babies are born with pieces of cartilage that will eventually become the bony kneecap, or patella, that adults have. Like bone, cartilage gives structure where it’s needed in the body, such as the nose, ears, and joints. But cartilage is softer and more flexible than bone.
What is the anatomy of the knee?
Knee joint is one of the most important hinge joints of our body. Its complexity and its efficiency is the best example of God’s creation. The anatomy of the knee consists of bones, muscles, nerves, cartilages, tendons and ligaments. All these parts combine and work together.
Why do we need a perfectly labeled diagram of the knee?
To understand one of the most complex joints of our body i.e. the knee joint, you need a perfectly labeled diagram of the knee. This will help you to understand the mechanism as well as the working. To understand one of the most complex joints of our body i.e. the knee joint, you need a perfectly labeled diagram of the knee.
What is the cell membrane?
The cell membrane (plasma membrane) is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell, while keeping other substances out. The cell membrane is primarily composed of a mix of proteins and lipids.
What is the fluid mosaic model of cell membrane?
Scientists use the fluid mosaic model to describe the structure of the cell membrane. The cell membrane has a fluid consistency due to being made up in large part of phospholipids, and because of this, proteins move freely across its surface.