are there punctate abrasions evident in this photo? >> right here.ou can see little reddish markings. that indicates that there was impact with with a surface, flat surface, that was not really smooth, like this wood here. if you hit your head on this wood here, you would not get punctate. you'd have to get something with a little non-flat surface, you know. little age to it. >> would concrete of the nature that is used in your every day sidewalk have that kind of surface? >> yes, sir. >> is this injury consistent with with mr. zimmerman's head having impacted a sidewalk? >> yes, sir. >> there is some -- we were just checking to see if you care for some water. if you do, just -- >> oh, no, no, no, no. >> the punctate abrasion is that sort of granular looking red stuff around the temple? >> right. it is not smooth. it is an area right here, and a little here, and a little here, and a little here, and a little here, and a little here, and a little here. that sort of thing. >> there appears to be a noticeable lump or knot a little higher up. >> right. o

>> no. >> any punctate jirinjuries?no. >> so you know trayvon's martin or head was not in contact with cement, correct? >> well, i didn't see any injuries. you can have a contact but the doctor is not seeing trauma that's visible. >> as mr. zimmerman could have, correct? >> correct. >> a dozen of them even, right? >> sorry? >> a dozen of them even, correct? >> a dozen what? >> other impacts. let's get more specific. we've now talked about the potential of two -- you would even admit -- let me ask you this. is there a possibility that with a swat or a hit or a fingernail or something that even this abrasion on his nose could have been a third? >> anything is possible. >> well, you're here as an expert. >> yes. >> so i want you to give us your opinion. is that possible based upon your level of knowledge? >> okay. so i will ask this. i know i'm not supposed to ask you questions but -- >> go ahead. >> -- so then the next issue will be that each of the punctate marks on his head could have been caused by, you know, a fingern

if you hit your head on this wood you would not get punctate. you'd have to get something with a little nonflat surface. a little edge to it. >> would concrete that's used in your every day sidewalk have that kind of surface? >> yes. >> is this injury consistent with mr. zimmerman's head having impacted a sidewalk? >> yes, sir. >> we're just checking to see if you'd care for some water? >> no. >> the punctate abrasion is that red stuff around the temple? >> right. it's not smooth. it's an area right here and then a little here and a little here and a little here and a little here. that sort of thing. >> there appears to be a noticeable lump or knot. does that appear to be a consequence of the impact. >> do you think it's associated with the impact that caused the punctate abrasions? >> yes, sir. >> could that then be, those injuries caused by one or more impacts with the sidewalk? >> yes, sir. >> let me show you state exhibit 70. the fist or the sidewalk? >> you could see there's a little adhesion over there. it's not a good photograph, unfortun

>> i don't see bruising but i see small very tiny punctate ma marks. know, the other thing is the photograph you're looking at, the hair is so short that -- >> this is an interesting situation because you know her -- she clearly sees her job as to diminish the extent of the injuries or she clearly sees the injuries as not that significant and they're sparring over how bad they could have been and so on and so clearly, whether the jury will go with her and say, it's really not that bad or whether they will believe o'mara and think, why is she fighting so hard to diminish them? does that show bias on her part, and then they dismiss her testimony. that will be up to the six jurors in the box. if you want to watch this while we take a quick commercial break streaming live on foxnews.com, more after this break. what do you think? [ mom ] yea, give it more sparkles. [ male announcer ] your kids make great things. so give them a tasty, wholesome snack that has eight grams of whole grain... and is now made with real strawberries and bananas. honey maid teddy g

. >> did you see the physical injuries that punctate bruising and lacerations on the side of mr. zimmerman's head? >> when i said blows earlier, those were the things that really caught my eye because of the fact that it was a striking, not a pushing so much because of all of the, lack of a better word, injury or damage that i saw on the side of the head. there was swelling all around his head. it's not just the facial area, it's all around. >> the injuries were consistent with somebody pushing the head down to the side, do you see me move it to the side like that, is that similar to that hitting cement? >> it could be. it could be that or it could be punches as well driving those strikes in. >> and then on the other side, were the injuries consistent with the left side of mr. zimmerman? >> it could be. you know, just like mr. guy pointed out, if mr. zimmerman is on the bottom and he's not just laying there, he is moving whether he's trying to defend himself, trying to do his sliding techniques or whatever they are, as he's turning his body and his head in those efforts, it's goi

>> did you see the pictures that showed punctate bruising and lacerations? >> those were the things that caught my eye to support the strike it was a striking and not a pushing so much because of the lack of the better word, injury or damage this i saw on the side of the head. there's swelling all around his head. it's not just the facial area. >> those injuries consistent with somebody pushing head down to the side, you see me move it to the side like that. similar to that hitting cement? >> it could be that or punches as well. >> then on the other side would the injuries consistent with hitting it down on the side on the left side of mr. zimmerman? >> it could be. just like mr. guy pointed out if mr. zimmerman is on the bottom and he's not just laying there trying to do his sliding techniques as he's turning his body or head it's going to redirect and realign. whatever push or punch comes in next it's going to be a strike to the side, front. that's all indicative of an ongoing combat event. >> talking about the angle. mr. guy was suggesting we need to stay

. >> what they call punctate bruising?bumps, contusions. >> and to the extent that you don't count them all here today, agree that the jury can simply look at those pictures that were available to you taken really right around the time of the first midnight interview and rely on those rather than your memory? >> yes. >> all right. so chris serino, the police officer, now suggesting that the injuries that he saw on george zimmerman that night were not in his words "life threatening." we're going to assess that and continue our live coverage right after this. humans. we are beautifully imperfect creatures living in an imperfect world. that's why liberty mutual insurance has your back, offering exclusive products like optional better car replacement, where if your car is totaled, we give you the money to buy one a model year newer. call... and ask an insurance expert about all our benefits today, like our 24/7 support and service, because at liberty mutual insurance, we believe our customers do their best out there in the wor