Exam 3: Basic Embryology

The neural tube of the embryo develops into the

A ________ abortion is one in which the fetus dies and is naturally aborted.

The most common cause of mental retardation in the United States is

The ribs and vertebrae form from this primary germ layer.

The hand develops with ________ between the fingers.

Male and female fetuses can first be distinguished by their genitalia at

Somatic mesoderm gives rise to all of the following except

Which of the following appears latest in human development?

Splanchnic mesoderm forms the

The ________ is the embryonic stage that implants in the uterus.

The embryonic ________ ultimately form the arms and legs of the adult.

Fertilization is to zygote as

This is the most common preventable cause of mental retardation in the United States.

It is easy to remember that in humans, 3 weeks after fertilization, there are three germ layers.

Which of the following is the proper sequence for neurulation?

Which characteristic is not true of a blastocyst?

Eyes open and lungs develop.

The embryonic notochord gives rise to part of the intervertebral discs in the adult human.

The mesoderm located deep to the neural tube forms the kidneys and the gonads is the ________.

Limbs are complete.