The embryo is 25 mm long from crown to rump and weighs 4.6 grams. The eyes are now positioned on each side of the head, and the cheeks are visible. The jaw bones have developed. The heart is now fully formed. It beats at a rate of 140 to 150 beats per minute. The eyelids are now forming. Fingers and toes are visible. Nose and mouth are now positioned close to each other.