Since embryonic and fetal development progress from the cranial to the caudal areas of the body, the ________ of a 2-month embryo takes up about one-half of the total body height.

Question

Quizplus · Accepted Answer

During embryonic and fetal development, the head develops early on and takes up a significant portion of the body height by the 2-month mark. The lower limbs have not yet undergone significant development at this stage, so they would not make up as much of the body height. The trunk and upper limbs would also not make up as much of the body height as the head during this stage of development. Choice E is partially correct, as the head does contribute to the total body height along with the trunk, but the question specifically asks for which area takes up about one-half of the total body height, and that would be the head.

Since Embryonic and Fetal Development Progress from the Cranial to the Caudal