ALS Lecture 10 - The Lower Limb, Muscle Groups DONE Flashcards
deep fascia is a _____ fibrous tissue that covers ____
fibrous, whole body under skin
it encloses different parts of the limbs into
compartments
what do compartments maximise? (2)
- maximise muscle work
- venous return
fascia lata is the
deep fascia in the thigh
fascia lata is continuous from
inguinal ligament, Scarpa’s fascia (abdomen)
fascia lata attaches to
pelvis superiorly
fascia lata runs distally down the knee, enclosing 2 muscle groups
- tensor fascia latae - hip flexors, knee extensors
2. gluteus maximus - hip abductors
2 openings of fascia lata
cribriform fascia, saphenous opening
what happens in the cribriform fascia opening of the fascia lata?
great saphenous vein drains into femoral vein
crural fascia is
continuation of fascia lata, deep fascia in the leg (knee-ankle)
crural fascia fuses to
tibia
crural fascia thickens to form the
extensor retinacula at ankle joint
label the diagram of the fasciae
done
muscles in the same compartment have the same/similar (3)
functions, blood supply, innervation
compartments of the thigh
anterior, middle, posterior
compartments of the leg
anterior, lateral, posterior
what separates the anterior and posterior compartments of the leg?
interosseous membrane
label the diagrams of the compartments of the leg and thigh
done
look at the diagrams of compartment syndrome
done
compartment syndrome is due to
increased pressure in compartment
increase in pressure could be due to (type and example, 3)
- within the compartment, e.g. intracompartmental haemorrhage
- constriction of compartment, e.g. scarring due to burns
- external compression, e.g. cast too tight
symptoms of compartment syndrome
6 Ps
pressure, pain on stretch, pulse present?, pink colour, paresis (foot drop), paraesthesia
label diagram of the 6 Ps of compartment syndrome
done
compartment syndrome treatment
fasciotomy (skin, superficial and deep fascia opened to relieve pressure)
gluteal region muscles act on ____, for which movements?
hip, abduction, rotation, extension
iliac region muscles do what?
flex hip
anterior thigh compartment has
hip flexors, knee extensors
medial thigh compartment has
hip adductors
posterior thigh compartment has
hip extensors, knee flexors
anterior leg compartment has
ankle extensors, dorsiflexors
medial leg compartment has
ankle evertors
posterior leg compartment has
ankle flexors, plantar flexors
anterior foot has
extensors
posterior foot has
flexors
muscles in anterior compartment of the thigh
rectus femoris, vastus muscles, sartorius, pectineus
vastus muscles
vastus medialis, vastus intermedius, vastus lateralis
rectus femoris crosses
knee and hip joint
rectus femoris movements
knee extension, hip flexion
vastus muscles attach to
femur with vast site of attachment
vastus muscles movement
knee extension
sartorius path
outer edge of pelvis (ASIS) to medial proximal tibia (crosses lateral to medial)
sartorius movement
flex hip, flex knee, lateral rotation
pectineus movement
hip adduction, some hip flexion
anterior compartment of the thigh innervation
femoral nerve (pectineus sometimes obturator)
anterior compartment of the thigh blood supply
femoral artery
label the diagram of the anterior thigh muscles
done
muscles in medial compartment of thigh
adductor brevis, adducot rlongus, adductor magnus, gracilis, obturator externus
label the diagram of the medial thigh muscles
done
gracilis course
down medial thigh, from pelvis to tibia
medial compartment of the thigh innervation
obturator nerve
medial compartment of the thigh blood supply
obturator artery
label the diagram of the posterior compartment of the thigh
done
posterior compartment of the thigh muscles are collectively known as the
hamstrings