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Question 1

What alternates during the human life cycle?

Answer 1

Fertilization and meiosis

Question 2

What is the developmental sequence after fertilization?

Answer 2

Zygote to embryo to adult

Question 3

What do gametes serve as in human reproduction?

Answer 3

Vehicles to deliver and combine parents’ DNA

Question 4

What is restored in the zygote after fertilization?

Answer 4

Chromosome number

Question 5

What are the stages of human life?

Answer 5

• Infancy
• Childhood
• Adolescence
• Adulthood

Question 6

What age range defines infancy?

Answer 6

0 to 2 years old

Question 7

What developmental skills are acquired during childhood?

Answer 7

Locomotor and cognitive skills

Question 8

What age range defines adolescence?

Answer 8

13 to 19 years old

Question 9

What characterizes adulthood?

Answer 9

Sexually mature physically and behaviorally

Question 10

What changes during puberty serve as preparations for adulthood?

Answer 10

Physical, physiological, and behavioral changes

Question 11

What mode of reproduction is exclusive to humans?

Answer 11

Sexual reproduction

Question 12

What prevents viable asexual mutations in human reproduction?

Answer 12

Genetic material from two sources

Question 13

What is the function of the testis?

Answer 13

Produces and nourishes sperm cells

Question 14

What regulates the temperature of the testis?

Answer 14

Scrotum

Question 15

What is the function of the epididymis?

Answer 15

Stores sperm cells and transports them to vas deferens

Question 16

What is the common exit duct for urine and semen?

Answer 16

Urethra

Question 17

What is the pathway of sperm from testis to the urethra?

Answer 17

Vas deferens

Question 18

What does the seminal vesicle contribute to sperm?

Answer 18

Alkaline fluid that nourishes and protects sperm cells

Question 19

What does the prostate gland contribute to semen?

Answer 19

Fluid that neutralizes semen and vaginal fluid

Question 20

What is the function of the bulbourethral gland?

Answer 20

Produces lubrication fluid

Question 21

What is the copulatory organ that conveys sperm to the female reproductive tract?

Answer 21

Penis

Question 22

What is the function of the ovary?

Answer 22

Produces and nourishes egg cells

Question 23

What serves as the fertilization site in females?

Answer 23

Fallopian tubes

Question 24

What are the appendages of the fallopian tubes that catch eggs during ovulation?

Answer 24

Fimbriae

Question 25

What nourishes the developing embryo?

Answer 25

Uterus

Question 26

What prevents foreign materials from entering the uterus?

Answer 26

Cervix

Question 27

What receives sperm cells and serves as the birth canal?

Answer 27

Vagina

Question 28

What are the accessory structures of the female reproductive system called?

Answer 28

External genitalia

Question 29

What does Bartholin's gland produce?

Answer 29

Fluid that serves as lubrication during intercourse

Question 30

What is gametogenesis?

Answer 30

Reduction of the chromosome number

Question 31

What is the process of sperm cell formation called?

Answer 31

Spermatogenesis

Question 32

What is the process of egg cell formation called?

Answer 32

Oogenesis

Question 33

Where does spermatogenesis occur?

Answer 33

Seminiferous tubules of male testis

Question 34

What initiates oogenesis?

Answer 34

Starts during pregnancy of the mother

Question 35

What is the polar body in oogenesis?

Answer 35

Small meiotic product of the unequal division

Question 36

What mechanisms protect against polyspermy during fertilization?

Answer 36

Slow-block and fast-block mechanisms

Question 37

What happens during the pre-implantation phase?

Answer 37

Zygote undergoes repeated cell divisions and reorganization

Question 38

What occurs during the implantation phase?

Answer 38

Implantation occurs during the blastocyst stage

Question 39

What process transforms the offspring into a three-layered embryo?

Answer 39

Gastrulation

Question 40

What does the amnion contain?

Answer 40

Fluid that surrounds the developing embryo

Question 41

What is the function of the yolk sac?

Answer 41

Initial nourishment source of the embryo

Question 42

What does the allantois facilitate?

Answer 42

Gas exchange and collects liquid wastes

Question 43

What forms the placenta?

Answer 43

Maternal and fetal origin

Question 44

What is the role of the placenta during gestation?

Answer 44

Supplies oxygen and nutrients and removes wastes

Question 45

What occurs during embryonic development?

Answer 45

Organogenesis

Question 46

What occurs during fetal development?

Answer 46

Continued organogenesis