VAN 121: Veterinary Gross Anatomy-II (2+2)

Muscles of the pelviclimb - Dog

MUSCLES OF THE PELVIC LIMB IN DOG

• The tensor fasciae latae is thin and long.
• A superficial gluteus overlies gluteus medius posteriorly.
• The gluteus medius do not go forwards beyond the ilium hence no lumbar part.It is inserted into the trochanter major.
• The gluteus profundus is intimately attached to the middle gluteus and is the smaller of the two lying adherent to the ilium.
• The biceps femoris has origin from tuber ischii and is placed posteriorly. A thin muscular band which takes its origin from the sacro sciatic ligament and blends with the biceps is known as abductor cruris posterior.
• The semimembranosus is clearly divisible into two parts. The anterior part ends under the attachment of the pecteneus.The posterior part is intimately attached to the posterior border of the abductor and terminates on the medial condyle of the femur.
• The semitendinosus arises from the tuber ischii and inserts on tibial fascia inside.
• The two parts of the sartorius diverge after the origin.
• The gracilis is thinner and narrower.
• The adductor is divided into aductor minor and adductor major.Both are inserted to the inner branch of the linea aspersa of the femur.
• The pecteneus,obturator,quadratus femoris and gemellus,rectus femoris are similar to the ox.
• The tibialis anterior is a large muscle and covers the lateral surface of the common digital extensor at its proximal extrmity.
• The common digital extensor is mostly overlapped by the tibialis anterior.It is inserted to the third phalnages of the second,third,fourth and fifth digits.
• The peroneus longus has an accessory muscle known as peroneus brevis.
• The soleus is absent.
• The gastrocnemeus has a small sesamoid bone called fabella,  embedded into it at its origin.