Rectus femoris muscle
Updates to Article Attributes
Body
was changed:
The rectus femoris muscle is one of four quadriceps muscles in the anterior compartment of the thigh. The others areIt is distinct from the other quadriceps muscles (vastus medialis, the vastus intermedius, and the vastus lateralis) in that crosses both the hip and knee joints 1.
Summary
-
origin(s): consists of two proximal heads which fuse more distally 1
- straight head
originates from the- anterior inferior iliac spine (AIIS) of the ilium - reflected head
originates from the- ilium just superior to the acetabulum
- straight head
- insertion: quadriceps tendon
- action: flexes the thigh at the hip joint and extends the leg at the knee joint
- arterial supply: descending branch of the lateral circumflex femoral artery
- innervation: femoral nerve
Radiographic features
Ultrasound
Patient in a supine position in hip extension and probe placed of the AIIS in a longitudinal plane 4:
- direct head: seen directly at insertion on AIIS
- reflected head: hypoechoic appearance due to oblique course
Related pathology
Commonly injured in athletes including strains and calcific tendinopathy 4.
-<p>The <strong>rectus femoris</strong> muscle is one of four <a href="/articles/quadriceps-muscles">quadriceps muscles</a> in the <a href="/articles/anterior-compartment-of-the-thigh">anterior compartment of the thigh</a>. The others are the <a href="/articles/vastus-medialis-muscle">vastus medialis</a>, the <a href="/articles/vastus-intermedius-muscle">vastus intermedius</a>, and the <a href="/articles/vastus-lateralis-muscle">vastus lateralis</a>.</p><h4>Summary</h4><ul>- +<p>The <strong>rectus femoris</strong> muscle is one of four <a href="/articles/quadriceps-muscles">quadriceps muscles</a> in the <a href="/articles/anterior-compartment-of-the-thigh">anterior compartment of the thigh</a>. It is distinct from the other quadriceps muscles (<a href="/articles/vastus-medialis-muscle">vastus medialis</a>, <a href="/articles/vastus-intermedius-muscle">vastus intermedius</a>, <a href="/articles/vastus-lateralis-muscle">vastus lateralis</a>) in that crosses both the hip and knee joints <sup>1</sup>.</p><h4>Summary</h4><ul>
-<strong>origin</strong><ul>-<li>straight head originates from the <a href="/articles/anterior-inferior-iliac-spine">anterior inferior iliac spine</a> (AIIS) of the <a href="/articles/ilium">ilium</a>- +<strong>origin(s)</strong>: consists of two proximal heads which fuse more distally <sup>1</sup><ul>
- +<li>straight head - <a href="/articles/anterior-inferior-iliac-spine">anterior inferior iliac spine</a> (AIIS) of the <a href="/articles/ilium">ilium</a>
-<li>reflected head originates from the <a href="/articles/ilium">ilium</a> just superior to the <a title="Acetabulum" href="/articles/acetabulum">acetabulum</a>- +<li>reflected head - <a href="/articles/ilium">ilium</a> just superior to the <a href="/articles/acetabulum">acetabulum</a>
-</ul><h4>Related pathology</h4><p>Commonly injured in athletes including <a title="Strains" href="/articles/strain">strains</a> and <a title="Calcific tendinitis" href="/articles/calcific-tendinitis">calcific tendinopathy</a> <sup>4</sup>.</p><p><!--[if gte mso 9]><xml>- +</ul><h4>Related pathology</h4><p>Commonly injured in athletes including <a href="/articles/strain">strains</a> and <a href="/articles/calcific-tendinitis">calcific tendinopathy</a> <sup>4</sup>.</p><p><!--[if gte mso 9]><xml>
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