Practical topic 17 Flashcards

Medial muscles of the thigh, canalis femoralis and its features, lymphnodes and superficial veins of the hindlimb

1
Q

Give the medial muscles of the thigh

A
  1. M. Sartorius
  • Pars cranialis
  • Pars caudalis
  1. M. gracilis
  2. M. Adductor
  • M. adductor longus
  • M. adductor magnus et brevis

4 M. Pectineus

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2
Q

M. Sartorius pars cranialis

A

Origin: Tuber coxae, crista iliaca

Insertion:

  • Radiating into fascia lata and crural fascia.
    • Above stifle joint

Action:

  • Flexes hip
  • Extends stifle

Innervation: N. saphena

Blood supply:

  • A. circumflexa ilium superficialis
  • A. iliolumbalis
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3
Q

M. sartorius pars caudalis

A

Origin: Tuber coxae

Insertion:

  • Radiating into fascia lata and crural fascia.
    • Below stifle joint (the latter medially reaches crista tibia).

Action: Flexes hip and stifle

Innervation: N. saphena

Blood supply:

  • A. circumflexa ilium superficialis
  • A. iliolumbalis
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4
Q

M. Gracilis

A

Origin: Symphysis pelvis (of tendo symphysialis)

Insertion:

  • Crista tibia, medially (together with m. Semitendinosus)
  • Facies cruris
  • Tuber calcanei by an accessory tendon to common calcaneal tendon (together with m. Semitendinosus and m. Biceps femoris)

Action:

  • Adducts hind limb
  • Extends hip
  • Flexes stifle
  • Extends tarsus

Innervation:

  • N. Saphena
  • N. obturatorius

Blood supply: A. caudalis femoris proximalis

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5
Q

M. Adductor

A

Origin:

  • Mainly symphysis pelvis
  • M. adductor longus:
    • Ramus cranialis of ossis pubis
  • M. adductor magnus et brevis:
    • Arising from symphysis pelvis (tendo symphysialis)
    • Ramus caudalis ossis pubis
    • Ramus ossis ischi

Insertion:

  • Facies aspera of femur.
  • Labium laterale of femur.

Action:

  • Adducts hindlimb
  • Extends hip

Innervation: N. obturatorius

Blood supply:

  • A. glutea caudalis
  • A. circumflexa femoris medialis
  • Aa. caudale femoris proximalis et media
  • A. profunda femoris
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6
Q

M. Pectineus

A

Origin:

  • Corups ossis pubis on each side
  • Eminentia iliopubica
  • Pecten ossis pubis
  • Prepubic tendon

Insertion: Labium mediale of femur.

Action: Adduction of thigh.

Innervation:

  • N. Saphena
  • N. obturatorius

Blood supply: A. caudalis femoris proximalis

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7
Q
A

Ventral view of the pelvis and medial view of the thigh:

  1. M. obturatorius externa

2. M. adductor

  1. Symphysial tendon
  2. M. semimembranosus
  3. M. semitendinosus
  4. Femoral triangle

7. M. pectineus

8. M. sartorius

  1. M. fasciae latae is evident cranial to the quadriceps femoris m. (which is not labeled)
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8
Q

Localization of calanalis femoralis

A
  • Deep groove on the medial side of the thigh, containing femoral artery, vein and nerve (lies within a sheath)
  • Passes first beneath m. gracilis and later under m. adductor
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9
Q

Canalis femoralis, borders

A
  • Cranial border: M. sartorius pars caudalis
  • Caudal border: M. pectineus + m. adductor
  • Dorsal border: Lig. inguinale
  • Medial border: M. iliopsoas
  • Lateral border: femoral fascia
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10
Q

What can the space under the lig. inguinalis - before canalis femoralis starts - be divided into?

A
  • Lacuna vasorum:
    • For femoral vessels
  • Lacuna musculorum:
    • For m. iliopsoas
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11
Q

From which artery does a. femoralis branch from?

A

Ex: a. iliaca externa

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12
Q

Give the branches from a. femoralis

A
  1. A. circumflexa ilium superficialis
  2. A. circumflexa femoris lateralis
  3. A. caudalis femoris proximalis
  4. A. saphena
  5. A. genus descendens
  6. A. caudalis femoris media
  7. A. caudalis femoris distalis
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13
Q

A. circumflexa ilium superficialis

  1. From which artery does it arise from?
  2. Where is it given off?
  3. Supplies
A
  1. Can arise from a tiny branch, or from the lateral circumflex femoral artery
  2. Given off before the entrance to the pelvic cavity
  3. Supplies:
    • M. rectus femoris
    • M. tensor fascia latae
    • M. sartorius
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14
Q

M. circumflexa femoris lateralis

Give the branches

A
  1. R. ascendens
  2. R. descendens
  3. R. transversus
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15
Q

A. caudalis femoris proximalis

From where does it branch?

A

From a. saphena or together with it

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16
Q

A. saphena

  1. Where does the vessel start?
  2. Where does it travel?
  3. What does it branch into?
A
  1. At the distal end of the femoral canal
  2. Continues superficially together with the vein and the nerve in caudodistal direction (over the tendon of m. gracilis, and divides at the insertion point of m. gracilis into:
  3. R. cranialis and r. caudalis
17
Q

A. genus descendens

  1. Where is it given off?
  2. What does it arise to?
A
  1. A short distance after a. saphena is given off, this artery comes off and continues craniodistally
  2. May arise proximal to a. saphena
18
Q

Where does v. femoralis travel

A

Crosses the caudal surface of the femur, passes through m. adductor magnus et brevis and into the hollow of the knee → v. popilitea

19
Q

Give the branches from v. femoralis

A
  1. V. circumflexa ilium superficialis
  2. V. circumflexa femoris lateralis
    • R. ascendens
    • R. transversus
    • R. descendens
  3. V. caudalis femoris proximalis
  4. V. saphena medialis
  5. V. genus descendens
  6. V. caudalis femoris media
  7. V. caudalis femoris distalis
20
Q

V. circumflexa ilium superficialis

Supplies

A
  • M. tensor fascia latae
  • M. sartorius
21
Q

V. circumflexa femoris lateralis

  1. Where does it arise from?
  2. Branches
A
  1. Arises in the proximal part of canalis femoralis
  2. Divides into:
    • R. ascendens:
      • Hip joint
      • Gluteal muscles
    • R. transversus
      • The true continuation of the vein
    • R. descendens
      • M. quadriceps femoris
22
Q

V. saphena medialis (magna)

  1. Where does it arise from?
  2. Branches
A
  1. Arises from the femoral vein at the distal end of the femoral canal
  2. Branches:
    • Gives off muscular branches
    • Divided a little distal to stifle joint:
      • R. cranialis
      • R. caudalis
23
Q

V. genus descendens

  1. What does it arise from?
  2. Supplies
A
  1. Arises from v. femoralis after v. saphena medialis
  2. supplies:
    • Muscles around the knee
    • Medial region of stifle joint
    • Patellar joint
    • Infrapatellar adipose tissue
24
Q

V. caudalis femoris distalis

Which vessel does it give off?

A

Gives off v. saphena lateralis → direct continuation of v. caudalis femoris distalis

25
Q

Lateral

A
  1. V. saphena lateralis
  2. Caudal branch of v. saphena lateralis
  3. Cranial branch of v. saphena lateralis
26
Q

Femoral triange

A
  1. A/V. femoralis
  2. M. sartorius
  3. M. pectineus
  4. Vascular lacuna (not well shown)
  5. Proximal caudal femoral vessels
    • Given off by femoral vessels
  6. M. adductor
  7. M. gracilis
  8. External pudendal vessels
    • Emerges from canalis inguinalis
  9. Canalis inguinalis
27
Q
A
  1. Vascular lacuna
  2. A/V. iliaca externa
  3. A/V. femoralis profunda
  4. Pudendoepigastric trunk
  5. A/V. circumflexa femoris medialis
    • Supplies adductor
  6. M. adductor
  7. Transverse branches of a/v. circumflexa femoris medialis
  8. Deep branches of a/v. circumflexa femoris medialis
  9. A. femoralis
  10. A. circumflexa ilium superficialis
  11. A. circumflexa femoris lateralis
  12. A. caudalis femoris proximalis
  13. A. saphena
  • * N. saphena
28
Q
A
  1. A. femoralis
  2. Common trunk of a. iliaca circumflex superficialis and a. circumflex femoris lateralis
  3. A. caudalis femoris proximalis
  4. A. caudalis femoris media
  5. A. caudalis femoris distalis
  6. A. saphena
  7. N. saphena
  8. A. genicularis descendens
  9. N. tibialis
  10. A. femoralis circumflexa lateralis
  11. M. gracilis
  12. M. pectineus