Functional Rehab Academy

Back to muscle test section

Semimembranosus

Muscle origin
Superolateral impression of ischial tuberosity

Muscle insertion
Medial condyle of Tiba and fascial sheet of Popliteus

Muscle function
Hip extension and knee flexion. Internal rotation of Tibia

Nerve innervation
L5-S2 (Lovett reactor C1)

Primary muscle type
Phasic / Mixed (50-60%)

Myofascial lines
Superficial back line

 

 

Primary inhibatory muscles
Psoas major, Iliacus, Rectus femoris, Vastus medialis, Vastus lateralis, Biceps femoris, Popliteus, Gastrocnemius

Organ relationship (T5-L2, Sacrum, n. Vagus

  • Pancreas (AK)
    • Symp T5-10 (Celiac plexus)
    • Parasymp – CX (Vagus)
  • Small intestine (AK)
    •  Symp – T5-12 (Celiac and superior Mesenteric plexus)
    •  Parasymp – CX (Vagus)
  • Large intestine (FA/AK)
    •  Symp – T10-L2 (Mesenteric and Hypogastric plexus)
    •  Parasymp – CX (Vagus) and S2-S4 (Sacral plexus)
  • Bladder (FA)
    •  Symp – T10-L2 (Inferior Hypogastric plexus)
    •  Parasymp – S2-4 (Sacral plexus)
  • Adrenals (AK)
    • Symp – T8-L1 (Celiac and Renal plexus)
    • Parasymp – None
  • Reproductive organs (FA)
    •  Symp – T10-L2 (Inferior Hypogastric, Ovarian and Testicular plexus)
    •  Parasymp – S2-4 (Sacral plexus)
Tibial part
Client is supine with the knee flexed 100 deg. (knee joint angle is 80 deg.) and tibia in full internal rotation. Fiksate with one hand in front of the knee and apply pressure towards knee extension by pulling towards the end of the bed with the other hand.
Popliteal part
Client is supine with the knee flexed 100 deg. (knee joint angle is 80 deg.) and tibia in full internal rotation. The foot is placed 20cm lateral creating a slight internal rotation in the hip. Fiksate with one hand in front of the knee and apply pressure towards knee extension in a slight oblique angle pulling towards the end of the bed (in a line away from the knee) with the other hand.

Functional anatomy for

Semimembranosus

Related joints

  • SI joint
  • Hip joint
  • Knee joint

Associated muscles

  • Erector spinae – Connected in Superficial back line
  • Glutes maximus – Hip extension. Posterior pull on Ilium
  • Piriformis – Posterior pull on Ilium (through function of hip external rotation)
  • Semitendinosus – Hip extension, knee flexion and Tibia internal rotation. Posteior pull on Ilium
  • Biceps femoris – Hip extension and knee flexion. Posterior pull in Ilium
  • Adductor magnus – Hip extension. Posterior pull on Ilium
  • Sartorius – Internal rotation of Tibia
  • Gracilis – Internal rotation of Tibia
  • Popliteus – Knee flexion and internal rotation of Tibia
  • Gastrocnemeus – Knee flexion. Connected in Superficial back line

Release exercises

Corrective strength exercises

Back to muscle test section

Functional Rehab Academy

Manual and practical therapy strategies that will help you find the root cause(s) and achieve faster and better results with your clients.

Functional Rehab Academy is a part of:
Move2Peak Academy ApS, Denmark
contact@functionalrehabacademy.com

Member

Legal