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Thigh · LI · 12 min

Hamstrings — the wrong flex

A read of this page, with the plate.

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Banner: hamstrings — long heads from the ischium, short head from the femur
Banner. Lateral rotation of the flexed knee is biceps. Medial is the semis. Two nerves. Large intestine as address.Illustration · site art, not a Kapel Draw.

Three muscles. Biceps femoris, semitendinosus, semimembranosus. Long work from the ischial tuberosity. Biceps femoris also has a short head from the linea aspera — femoral, not ischial. Insertions: fibular head for biceps; posterior medial tibial condyle for semimembranosus; pes anserinus for semitendinosus. Large intestine as map.

The line that did not stand

The slide said biceps femoris, both heads, ‘laterally flex head.’ That is a mangled sentence. At a flexed knee, biceps femoris laterally rotates the tibia. The semis medially rotate it. Both groups flex the knee. The long head of biceps and the semis extend the hip. We keep lateral rotation of the flexed knee.

Two nerves

Tibial division of sciatic to the ischial heads. Common fibular to the short head of biceps. A ‘hamstring’ is not one muscle with one opinion. You name which head. You name the door.

Practice

Sit. Let one knee bend without forcing. Name flex, then which way the tibia would rotate. Lateral is biceps. Medial is the semis. Name large intestine.

Check

Biceps femoris at a flexed knee primarily:

  1. Laterally rotates the tibia ✓
  2. Laterally flexes the head, as the slide first said
  3. Medially rotates the tibia, with the semis

The slide was revised. Lateral rotation of the flexed knee. Hip extension is the long head. Medial is the semis.

You use this group by:

  1. Naming large intestine as the address — grief, letting go — and asking which head is on ✓
  2. Parking them on triple warmer with sartorius, because both are long straps
  3. Parking the short head on CX with the adductors, because it never touched the ischium

LI is the door. TW is the tailor. CX is the inner line. Two nerves, one address.

Hamstrings — the wrong flex — keep this:

  1. Living against the tide on purpose
  2. A 'hamstring' is not one muscle with one opinion. ✓
  3. Proof of supernatural status

A 'hamstring' is not one muscle with one opinion.

Practice on this hour is to:

  1. Thyroxine from the medulla
  2. Let one knee bend without forcing. ✓
  3. A rigid medical diagnosis you must stamp

Method before bottle. Trace what the lesson names.

The lab on this hour is for:

  1. A graded exam that invents the next curriculum
  2. Feeling and naming what the lesson maps — journal, not a bottle ✓
  3. A prescription pad for the lab name

Lab is literacy. Not a dose from the yield.

"Hamstrings — the wrong flex" here is best treated as:

  1. A tourist collection of special experiences
  2. Biceps femoris, semitendinosus, semimembranosus. ✓
  3. A rigid diagnosis tool that replaces sleep

Train with the map. Do not invent a second sky.

A common mistake this hour corrects:

  1. A dose you write from a yield
  2. Biceps femoris also has a short head from the linea aspera — femoral, not ischial. ✓
  3. Collapsing two houses into one word

Biceps femoris also has a short head from the linea aspera — femoral, not ischial.

A Kapel cue from this board:

  1. A cream you prescribe from the chart
  2. Long work from the ischial tuberosity. ✓
  3. Increase the drama until something happens

Long work from the ischial tuberosity.

The skilled response here is:

  1. A bottle that finishes the feeling
  2. Insertions: fibular head for biceps; posterior medial tibial condyle for semimembranosus… ✓
  3. Squeezing the gate until it 'opens'

Insertions: fibular head for biceps; posterior medial tibial condyle for semimembranosus; pes…

You use this lesson by:

  1. A board you invent without her permission
  2. The slide said biceps femoris, both heads, 'laterally flex head.' That is a mangled… ✓
  3. A reason to skip permission

The slide said biceps femoris, both heads, 'laterally flex head.' That is a mangled sentence.