Exam 28: Embryology and Human Development

Figure 28.5 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label E.

From which germ layer is the dermis of the skin derived?

The relatively thin portion of the endometrium that covers the embryo and separates it from the uterine cavity is called the ________.

The two systems with related functions that will change the most rapidly at birth, but that are still undergoing some differentiation shortly before birth, are the circulatory and ________ systems.

If two sperm penetrate two different oocytes, the two resulting offspring would be ________.

Figure 28.3 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label K

Problems with the formation of the chorion would affect ________.

The dilation stage of labor ________.

The heart begins pumping and circulating blood in the ________ week.

Neural crest cells give rise to ________.

In the axial skeleton, most muscle, cartilage, and connective tissues are derived from a series of mesenchymal blocks called ________.

The blastodisc of the early embryo consists of the ________.

In what developmental stage does the human embryo implant in the wall of the uterus?

The chorion forms from the ________.

Figure 28.1 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label K.

The amnionic cavity is filled with fluid, which functions to ________.

The neural plate is the first stage of development in the nervous system.

Figure 28.4 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label B.

Figure 28.5 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label C.

During implantation, the developing blastocyst receives nutrients from the nutrients released from the disruption and enzymatic digestion of ________.