Relatives and loved ones of a Sydney girl murdered by her own mother have broken down in court as a pathologist described the series of severe injuries she suffered in the weeks before her death, suggesting that she was subjected to sustained abuse.

"I didn't even know her and I loved her more than you!" one woman in the gallery said loudly as Kiesha Weippeart's mother, Kristi Anne Abrahams, was taken away at the end of the Supreme Court sentencing hearing.

"Suffered for months": Kiesha Weippeart.

Minutes before, forensic pathologist Dr Matthew Orde told the court that his examination of six-year-old Kiesha's remains - found in a grave in Shalvey in April 2011 - revealed a series of 10 separate "bony injuries" to her face, jaw, head and body that were inflicted in the weeks and months before her death.

He said protrusions where the coating of Kiesha's bones had re-healed after being damaged suggested that "blows’’ of "significant force" had been inflicted.