Module 2: Reproductive Key Terms

Question 1

Fetal membrane that forms a fluid-filled sac around the embryo.

Answer 1

Amnion

Question 2

Stage of early embryonic development; the product of cleavage.

Answer 2

Blastocyst

Question 3

Outermost fetal membrane; helps form the placenta.

Answer 3

Chorion

Question 4

Developmental stage extending from fertilization to the end of the eighth week.

Answer 4

Embryo

Question 5

Mucous membrane lining of the uterus.

Answer 5

Endometrium

Question 6

That portion of the male duct system in which sperm mature. Empties into the ductus (or vas) deferens.

Answer 6

Epididymis

Question 7

Fusion of the sperm and egg nuclei.

Answer 7

Fertilization

Question 8

Developmental stage extending from the ninth week of development to birth.

Answer 8

Fetus

Question 9

Sex or germ cell.

Answer 9

Gamete

Question 10

Primary reproductive organ; i.e., the testis of the male or the ovary of the female.

Answer 10

Gonad

Question 11

Production and secretion of milk.

Answer 11

Lactation

Question 12

Nuclear division process that reduces the chromosomal number by half and results in the formation of four haploid (n) cells; occurs only in certain reproductive organs.

Answer 12

Meiosis

Question 13

Period of life when, prompted by hormonal changes, ovulation and menstruation cease.

Answer 13

Menopause

Question 14

The mulberry-like solid mass of blastomeres resulting from cleavage in the early conceptus.

Answer 14

Morula

Question 15

Immature female gamete.

Answer 15

Oocyte

Question 16

Female reproductive organ in which ova (eggs) are produced; female gonad.

Answer 16

Ovary

Question 17

Culmination of pregnancy; giving birth.

Answer 17

Parturition

Question 18

Temporary organ formed from both fetal and maternal tissues that provides nutrients and oxygen to the developing fetus, carries away fetal metabolic wastes, and produces the hormones of pregnancy.

Answer 18

Placenta

Question 19

Adenohypophyseal hormone that stimulates the breasts to produce milk.

Answer 19

Prolactin

Question 20

External sac enclosing the testes.

Answer 20

Scrotum

Question 21

Fluid mixture containing sperm and secretions of the male accessory reproductive glands.

Answer 21

Semen

Question 22

Highly convoluted tubes within the testes; form sperm.

Answer 22

Seminiferous tubule

Question 23

The process of sperm (male gamete) formation; involves meiosis.

Answer 23

Spermatogenesis

Question 24

Male gamete.

Answer 24

Sperm

Question 25

Male primary reproductive organ that produces sperm; male gonad.

Answer 25

Testis

Question 26

Structure bearing arteries and veins connecting the placenta and the fetus.

Answer 26

Umbilical cord

Question 27

Mature ovarian follicle.

Answer 27

Vesicular (Graffian) follicle

Question 28

Female external genitalia.

Answer 28

Vulva

Question 29

Fertilized egg.

Answer 29

Zygote