American student Amanda Knox, on trial for the murder of British student Meredith Kercher, on Friday kept her eyes down as a pathologist showed the court graphic autopsy photos, sources said.
Medical findings on Kercher's death and possible sexual assault before her murder is being heard in private without media presence at the request of lawyers for the victim's family.
But sources inside the courtroom said Knox, 21, avoided looking at the photos as they were presented by pathologist Luca Lalli on a screen.
Her Italian former boyfriend and co-defendant, 25-year-old Raffaele Sollecito, instead followed the pathologist's report as he pointed to the photos.
Kercher, 21, was found semi-naked and with her throat slit on November 2, 2007 in the house she shared in Perugia with Seattle-born Knox and two Italian women.
A third defendant, Ivory Coast national Rudy Guede, 21, was sentenced to 30 years for sexually assaulting and murdering the British exchange student at a separate trial in October.
The prosecution claims Kercher was killed when all three defendants tried to force her to participate in ''a perverse group sex game''.
Prosecutors say Knox was responsible for cutting Kercher's throat while Sollecito and Guede held her down.
The defendants deny the charges against them.
Their legal teams are set to argue that a single intruder broke into the house and carried out the attack while Knox and Sollecito spent the night at Sollecito's house.
