Practical topic 17 Flashcards
Medial muscles of the thigh, canalis femoralis and its features, lymphnodes and superficial veins of the hindlimb
Give the medial muscles of the thigh
- M. Sartorius
- Pars cranialis
- Pars caudalis
- M. gracilis
- M. Adductor
- M. adductor longus
- M. adductor magnus et brevis
4 M. Pectineus
M. Sartorius pars cranialis
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
M. sartorius pars caudalis
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
M. Gracilis
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
M. Adductor
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
M. Pectineus
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
Ventral view of the pelvis and medial view of the thigh:
- M. obturatorius externa
2. M. adductor
- Symphysial tendon
- M. semimembranosus
- M. semitendinosus
- Femoral triangle
7. M. pectineus
8. M. sartorius
- M. fasciae latae is evident cranial to the quadriceps femoris m. (which is not labeled)
Localization of calanalis femoralis
- 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
Canalis femoralis, borders
- Cranial border: M. sartorius pars caudalis
- Caudal border: M. pectineus + m. adductor
- Dorsal border: Lig. inguinale
- Medial border: M. iliopsoas
- Lateral border: femoral fascia
What can the space under the lig. inguinalis - before canalis femoralis starts - be divided into?
- Lacuna vasorum:
- For femoral vessels
- Lacuna musculorum:
- For m. iliopsoas
From which artery does a. femoralis branch from?
Ex: a. iliaca externa
Give the branches from a. femoralis
- A. circumflexa ilium superficialis
- A. circumflexa femoris lateralis
- A. caudalis femoris proximalis
- A. saphena
- A. genus descendens
- A. caudalis femoris media
- A. caudalis femoris distalis
A. circumflexa ilium superficialis
- From which artery does it arise from?
- Where is it given off?
- Supplies
- Can arise from a tiny branch, or from the lateral circumflex femoral artery
- Given off before the entrance to the pelvic cavity
- Supplies:
- M. rectus femoris
- M. tensor fascia latae
- M. sartorius
M. circumflexa femoris lateralis
Give the branches
- R. ascendens
- R. descendens
- R. transversus
A. caudalis femoris proximalis
From where does it branch?
From a. saphena or together with it