Anatomy and Physiology
This discussion post focuses on my friend flexing his knee during a football training session. The knee is a joint in the body that joins the femur and tibia (Chang et al., 2022). The knee joint enables one to bend, stretch, straighten, and turn their knees, as seen with my friend. The knee joint comprises cartilage, bones, tendons, muscles, and ligaments. The bones of the knee include the knee cap (the patella), the thigh bone (the femur), and the lower bone (the tibia). The knee joint has three parts: the medial compartment, located between the tibia and femur on the inner side of the knee; the lateral compartment, located between the tibia and femur on the outer side of the knee; and the patellofemoral compartment, positioned between the grove on the femur and knee cap (Gupton et al., 2022). Need help with your assignment ? Get in touch with us.
The cartilage covering all the joint surfaces allows lubrication and less friction between the bones during movement (Gupton et al., 2022). The ligaments that stabilize the knee joint are anterior, lateral, medial, and posterior cruciate. The lateral and medial collateral ligaments stabilize the knee during stretching, while the lateral and medial collateral medial relax the knee during bending. The cruciate ligaments are responsible for stabilizing the knee joint when the knee is turned in any direction. My friend can bend his knee because of the bicep femoris during the football training session. He can also extend his knee because of the quadriceps femoris on the thigh’s front side. The muscles allowing my friend to turn his knee are the popliteus and sartorius muscles (Gupton et al., 2022). Notably, the medial and lateral meniscus enables one to turn their knee a few degrees outward and inward.
References
Chang, A., Breeland, G., & Hubbard, J.B. (2021). Anatomy, Bony Pelvis, and Lower Limb, Femur. StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK532982/
Gupton, M., Imonugo, O., & Terreberry, R.R. (2022). Anatomy, Bony Pelvis, and Lower Limb, Knee. StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK500017/
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Question 
Respond to the following in a minimum of 175 words:
Take a minute to observe the movement of a part of your body or observe someone else moving a part of your body. Describe the movement you are observing.
Anatomy and Physiology
Which parts of the body are involved in this movement? Be specific and list as many organs as you can.
Using common terms, describe the bones you think are involved in this movement.
What role do you think each of the bones plays in this movement?