ZOOLAB

• Identify the parts

  A) temporalis

  B) depressor mandibulae

  C) masseter

  
• Masseter origin is tympanic ring and adjacent bones
• Masseter insertion is lower jaw, behind temporal
• Masseter and Temporalis closes the mouth
• Temporalis origin is at the side of the skull between eye and tympanic ring
• Temporalis insertion is near posterior end of the lower jaw
• Depressor Mandibulae origin is at posterior edge of the tympanic ring via dorsal fascia
• Depressor mandibulae insertion is at posterior-most end of the lower jaw
• Depressor mandibulae action is it opens the mouth
• Label the parts

  A) dorsalis scapulae

  B) latissimus dorsi

  C) longissimus dorsi

  D) ilio-lumbaris

  E) coccygeo-sacralis

  F) gluteus

  G) coccygeo-iliacus

  
• Dorsalis scapulae origin is at scapula
• Dorsalis scapulae insertion is at the tendon joining the latissimus dorsi
• Dorsalis scapulae action is it raises arms towards body
• LatissimusDorsi origin is at dorsal fascia
• LatissimusDorsi insertion is on deltoid chest
• LatissimusDorsi action is it raises arm dorsally
• Label the parts

  A) dorsalis scapulae

  B) LatissimusDorsi

  C) LongissimusDorsi

  D) coccygeo-sacralis

  E) coccygeo-iliacus

  F) ilio-lumbaris

  G) gluteus

  
• LongissimusDorsi origin is in urostyle
• LongissimusDorsi insertion is in vertebrae and the back of the skull
• LongissimusDorsi action is it straightens the back and raises the head
• Ilio-lumbaris origin is at the anterior end of the ilium
• Ilio-lumbaris insertion is in transverse process of sacral vertebra
• Ilio-lumbaris acts as an extensor of the back
• Coccygeo-sacralis and coccygeo-iliacus origin at the periphery of the urostyle
• Coccygeo-sacralis insertion is in the transverse process of the 9th sacral vertebra
• Coccygeo-sacralis singly turns the back and raises it
• Coccygeo-iliacus insertion is in the anterior part of the ilium
• Coccygeo-iliacus holds urostyle in place
• Gluteus origin is at the middle of the lateral surface of the ilium
• Gluteus insertion is at the anterior side of head of femur
• Gluteus draws thigh forward and upward
• Label the part

  
• Triceps Femoris origin is at pelvic girdle
• Triceps femoris is an extensor of the shank
• Biceps femoris origin is at the crest of the ilium above the acetabulum
• Biceps femoris insertion is in distal part of the femur and posterior border of the tibio-fibula
• Biceps femoris adducts the thigh against the trunk, also extend the shank
• Semimembranosus origin is on the dorsal side of the ischium
• Gracilis muscles origin is in the edge of the ischium
• Gracilis muscles insertion is in inner side of the tibio-fibula below the head