Part 1

Question 1

States that cells come from preexisting cells.

Answer 1

Cell Theory

Question 2

Reproductive cells that contain half the normal chromosome complement.

Answer 2

Gametes

Question 3

Gamete from females.

Answer 3

Ovum

Question 4

Gamete from males.

Answer 4

Sperm

Question 5

A fusion of gametes.

Answer 5

Zygote

Question 6

The conceptus during the embryonic period.

Answer 6

Embryo

Question 7

A pregnant woman’s developing offspring.

Answer 7

Conceptus

Question 8

The conceptus during the fetal period.

Answer 8

Fetus

Question 9

From fertilization through week 8.

Answer 9

Embryonic Period

Question 10

From week nine through birth.

Answer 10

Fetal Period

Question 11

The prenatal periods of development that occur over a nine month period.

Answer 11

Gestation

Question 12

Period where the embryo develops cell layers that are precursors to organ systems.

Answer 12

First Trimester

Question 13

Period characterized by growth in length, mass gain, and the appearance of functional organ systems.

Answer 13

Second Trimester

Question 14

Period where the fetal increases in length and and mass continue to occur, and all organ systems either become functional or are prepared to become functional at birth.

Answer 14

Third Trimester

Question 15

The general term for all the processes involved in the specialization of cells in the developing conceptus and the migration of those cells to produce anatomical structures and function.

Answer 15

Morphogenesis

Question 16

All body cells except reproductive cells.

Answer 16

Somatic Cells

Question 17

Process by which somatic cells divide.

Answer 17

Mitosis

Question 18

Cell that has 46 chromosomes. Result of mitosis.

Answer 18

Diploid

Question 19

Reproductive cells.

Answer 19

Germinal Cells

Question 20

Process by which germinal cells divide. A sequence of two divisions of a diploid germinal cell.

Answer 20

Meiosis

Question 21

Cell that has only one chromosome of each homologues pair. Result of meiosis II.

Answer 21

Haploid

Question 22

The smaller of the two cells produced during meiosis I.

Answer 22

Polar Body

Question 23

The process of the sperm and ovum joining their haploid nuclei to produce a diploid zygote, the genetically unique cell that develops into an individual.

Answer 23

Fertilization

Question 24

The process that the ovary release an egg which begins moving along the uterine tube.

Answer 24

Ovulation

Question 25

Encapsulates the ovulated egg.

Answer 25

Corona Radiata

Question 26

A glassy layer of glycoprotein-rich network of filaments in an ovulated egg.

Answer 26

Zona pellucida

Question 27

Each set of nuclear material.

Answer 27

Pronucleus

Question 28

Consists of repeated miotic divisions of the zygote, resulting in a rapid increase in the number of cells.

Answer 28

Cleavage

Question 29

The embryonic cells. Begin to form about 36 hours after fertilization.

Answer 29

Blastomere

Question 30

A solid of nearly identical blastomeres.

Answer 30

Morula

Question 31

The inner cell mass of the morula that gives rise to the embryo.

Answer 31

Embryoblast

Question 31

The conceptus when blastomeres begin differentiating.

Answer 31

Blastocyst

Question 31

A hollow ball of cells with an internal cavity; appears shortly after the morula enters the uterus.

Answer 31

Blastocyst Cavity

Question 32

Cells on the outside of the blastomere which will burrow into the uterine lining and eventually form embryonic part of the placenta.

Answer 32

Trophoblast

Question 33

An outer mass of cells in an implanted embryo

Answer 33

Syncytiotrophoblast

Question 34

An inner layer of cells in an implanted embryo.

Answer 34

Cytotrophoblast

Question 35

Begins on day six or seven, when the blastocyst touches the endometrium of the uterus.

Answer 35

Implantation