Knee Anatomy : Part.1

         ⛹️‍♀️The ABC’S of Anato-Knee!

          (Anatomy of the Knee)🤾‍♂️

At BeneFIT Physical Therapy our Doctors of Physical Therapy have studied more than an arm and a leg’s worth of human physical anatomy to be able to properly administer orthopedic and sports based PT. Anatomy is a key component in evaluating our patients and creating individualized rehabilitation programs.

Puns aside, we at BeneFIT PT want to divulge our knowledge to our patients, so that you have a better understanding of why keeping up with your rehabilitation program is so important and to prevent future injury.

So, this series starts off with–The Knee! It let’s us squat in yoga, plie in ballet, kick a soccer ball, and bend to jump with you while shooting hoops!


Our knees are vital to sports and from the most mild to demanding exercises, including walking, jogging and running. Thus, when we injure a knee, it’s important to identify the specific injury as that will indicate treatment and after care.

The Basics


The knee is the largest joint in the body and is made up of four components: bones, cartilage, ligaments and tendons. The knee joint is one of the most commonly injured joints due to the constant workload it must handle.  

fig.1 ⬆️

 The knee joint is primarily made up of three bones: thighbone (femur), shinbone  (tibia), and kneecap (patella).  Additionally your knee has Articular cartilage on the underside of the patella (kneecap) which is the side closest to your femur.  Articular cartilage is also at the ends of both the femur and tibia. This cartilage helps your knee bones glide smoothly across one other as you bend or straighten your leg.


Meniscus: it’s not a new fruit or vegetable.  The meniscus acts as a “shock absorber” between your femur and tibia. The meniscus differs from articular cartilage in that it is tough and rubbery to help cushion and stabilize the knee joint. When a person talks about torn cartilage in the knee, they are usually referring to torn meniscus.



Ligaments  connect bone to bone. The four main ligaments in your knee are similar to strong ropes that hold the bones together and keep your knee stable.

There are Collateral Ligaments and Cruciate Ligaments.  Inside, outside and “X”  mark’s the spot!

Collateral ligaments are found on either sides of your knee. The medial collateral ligament (MCL) is on the inside of your knee, and the lateral collateral ligament (LCL) is on the outside. They control the sideways motion of your knee and brace it against unusual movement.

Cruciate ligaments are found inside the knee joint. They cross each other to form an “X”. The anterior cruciate ligament (ACL) is in front and the posterior cruciate ligament (PCL) is in back (see fig.1). The cruciate ligaments control the forward and backward motion of your knee.

Tender Tendons

Tendons connect muscles to bones.  The quadriceps tendon (see fig.2) connects the muscles in the front of your thigh to your patella. The tendon stretching from your patella to your shinbone is the patellar tendon.

.                        Fig.2⬆️

If you are in any pain or discomfort in your knee,  please give us a call at either our Bridgewater (908.203.5200) or Chester (908.879.5700) location to schedule a free medical screening with one of our highly trained Doctors of Physical Therapy!

However some injuries are more serious than others. If you can see your bone after a fall, call 911 or have someone bring you to the ER IMMEDIATELY.

Knee care is important for runners, walkers and joggers! If you want to get ready with us for a future 5k, check out our latest post from BeneFIT’s Couch to 5k Series. 

Check back next week for more of what you Knee(d) to know including muscle groups and common knee injuries!

Stay updated on our next knee post and all BeneFIT PT news on our blog FB, Insta or Twitter!

Now that the weather is getting nicer, stay active and get outdoors! REMEMBER,  Vitamin D is better than Vitamin TV.🌞

Go for a walk but stay safe and keep your social distance! See you soon at the clinic or online!


Knee Text References–conditions/common-knee-injries/

Knee Blog Picture References 

Fig1 –

Fig2 –