is the first branch off the arch of the aorta is the brachiocephalic artery in both the sheep and the human.

TRUE

Explanation:

Both sheep and humans have similar heart anatomy.

The aorta has 4 parts: the

1. ascending aorta

2. arch of aorta

3. descending (thoracic) aorta

4. abdominal aorta.

The ARCH OF AORTA is a continuation of the ascending aorta and has 3 major branches

1. The brachiocephalic trunk- which is the first branch.

2. The Left common carotid artery

3. The Left subclavian artery

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

multiply it by 5 in order for you to understand i cant give an exact answer.