Human Sexuality

Exam II Sample Questions

 

1.         Which of the following result from elevated levels of relaxin?

 

            A.        Increased milk production

            B.        More glucose is available for the fetus

            C.        Pubic bones become more flexible

            D.        Increased rate of maternal metabolism

            E.         B & D

 

2.         Of the following, how does estrogen affect the secretory phase?

 

            A.        Endometrial thickening

            B.        Increases GnRH levels

            C.        Increases LH levels

            D.        A & C

            E.         A, B & C

 

3.         During which stage of labor does the cervix become less thick?

 

            A.        Initiation of labor

            B.        Stage 1

            C.        Stage 2

            D.        Stage 3

            E.         Transition to extra-uterine life

 

4.         Of the following terms, which can be used to refer to the stage of development during which the endometrium is the primary source of nutrients?

 

            A.        Conceptus

            B.        Preembryo

            C.        Embryo

            D.        Fetus

            E.         A & C

 

5.         Oxygen levels are highest in which of the fetal structure?

 

            A.        In fetal lungs

            B.        In the umbilical arteries

            C.        In the umbilical vein

            D.        In the fetal heart

            E.         In the fetal aorta

 

6.         Of the following embryological structures, which permits the blastocyst to burrow into the endometrium?

 

            A.        Polar body

            B.        Embryonic disc

            C.        Trophoblast

            D.        Morula

            E.         B & C

 

7.         Of the following, which would be the effect on fertility of increasing FSH levels?

 

            A.        Shorten the follicular phase

            B.        Lengthen the follicular phase

            C.        Inhibit ovulation

            D.        Increase LH levels

            E.         Prevent implantation

 

8.         Of the following, which is the correct sequence through which sperm travels from the testis to outside the body?

 

            A.        Epididymus, ductus deferens, seminal vesicle, ejaculatory duct

            B.        Epididymus, urethra, ductus deferens, ejaculatory duct

            C.        Epididymus, ductus deferens, ejaculatory duct, urethra

            D.        Ejaculatory duct, ductus deferens, epididymus, urethra

            E.         Urethra, ejaculatory duct, ductus deferens, seminal vesicle

 

9.         At which fetal stage are the proportions of the head first smaller than that of the body?

 

            A.        End of embryonic period

            B.        9 – 12 weeks

            C.        13 – 16 weeks

            D.        21 – 30 weeks

            E.         31 – 40 weeks

 

10.       Of the following terms, which describes the unique appearance of the vagina during pregnancy?

 

            A.        Chadwick’s sign

            B.        Rugae

            C.        Chloasma

            D.        A & B

            E.         B & C

 

11.       In regards to the placenta, which of the following is NOT TRUE?

 

A.        After the third month of pregnancy, the placenta performs most of the roles previously performed by the ovary

            B.        The placenta prevents the mixing of fetal and maternal blood

            C.        The placenta allows maternal antibodies to be shared with the developing fetus

            D.        The umbilical vein brings maternal blood to the developing fetus

E.         C & D

 

12.       Of the following hormones, which maintains the corpus luteum during the early stages of pregnancy?

 

            A.        GnRH

            B.        FSH

            C.        HCG

            D.        Progesterone

            E.         A & D

 

13.       Which of the following is NOT a characteristic of the proliferative phase of the menstrual cycle?

 

            A.        Endometrium thickens

            B.        Follicle develops

            C.        Basal body temperature increases

            D.        Corpus luteum matures

            E.         C & D

 

14.       Of the following, which can be found within the zona pellucida?

 

            A.        Fertilized egg

            B.        Morula

            C.        Blastocyst

            D.        Trophoblast

            E.         A & B

 

15.       If parturition occurred 270 days after fertilization, approximately how long was the gestation period?

 

            A.        248

            B.        260

            C.        272

            D.        282

            E.         288

 

16.       Of the following, which is the outer most embryonic membrane?

           

            A.        Yolk sac

            B.        Allantois

            C.        Amnion

            D.        Trophoblast    

E.         Chorion

           

17.       If GnRH was present, which of the following hormones would be secreted?

 

            A.        FSH

            B.        LH

            C.        Progesterone

            D.        A & B

            E.         B & C

 

18.       Which of the following hormones is elevated prior to ovulation?

 

            A.        Progesterone

            B.        HCG

            C.        Follicle stimulating hormone

            D.        Luteinizing hormone

            E.         C & D

 

19.       Of the following, which is the genetic makeup of a primary oocyte after the S-phase of interphase?

 

            A.        Haploid with 1N DNA

            B.        Haploid with 2N DNA

            C.        Haploid with 4N DNA

            D.        Diploid with 2N DNA

            E.         Diploid with 4N DNA

 

20.       In regards to the events during oogenesis, which of the following is True?

 

            A.        Proliferative growth occurs during fetal the follicular phase

            B.        The second meiotic division occurs at the time of fertilization

C.        Most of oogenesis is spent with the cell in the metaphase of the first meiotic division

            D.        Oocytes continue to grow from the time of birth until they mature during the menstrual cycle

            E.         The first meiotic division produces a secondary oocyte and a diploid polar body

 

21.       At which developmental stage has the nervous system begun to function?

 

            A.        End of embryonic period

            B.        9 – 12 weeks

            C.        17 – 20 weeks

            D.        21 – 30 weeks

            E.         31 – 40 weeks

 

22.       Of the following modifications to the fetal circulatory system, which permits blood to bypass the fetal lungs?

 

            A.        Foramen ovale

            B.        Ductus arteriosus

            C.        Ductus venosus

            D.        A & B

            E.         B & C

23.       The ejaculatory duct is formed when the ductus deferens joins with which of the following?

 

            A.        Urethra

            B.        Epididymus

            C.        Prostate

            D.        Seminal vesicle

            E.         Bladder

 

24.       At which fetal stage does quickening occur?

 

            A.        End of embryonic period

            B.        9 – 12 weeks

            C.        17 – 20 weeks

            D.        21 – 30 weeks

            E.         31 – 40 weeks

 

25.       In regards to the initiation of development, which of the following is Not True?

 

A.        Prior to fertilization the egg is arrested in metaphase of the second meiotic division

            B.        Meiosis is reactivated by the penetration of the sperm

            C.        During the first 72 hours of development the zygote does not change size

            D.        Cells of the zygote divide mitotically

            E.         The second polar body is emitted prior to fertilization

 

25.       Which of the following hormones DOES NOT affect breast development?

 

            A.        hCG

            B.        hCS

            C.        Progesterone

            D.        Estrogen

            E.         A & B

 

26.       Of the following hormones, which is produced by the ovary during the proliferative phase of the menstrual cycle?

 

            A.        Progesterone

            B.        Estrogen

            C.        Follicle stimulating hormone

            D.        Luteinizing hormone

            E.         HCG

 

27.       Which of the following phases of the menstrual cycle describes ovarian events and is characterized by endometrial thickening?

 

            A.        Follicular phase

            B.        Luteal phase

            C.        Proliferative phase

            D.        Secretory phase

            E.         A & C

 

28.       Of the following, which are present in the adult ovary?

 

            A.        Primordial germ cells

            B.        Oogonia

            C.        Primary oocyte

            D.        Secondary oocyte

            E.         C & D

 

29.       Of the following hormones, which maintains the corpus luteum during the first two months of pregnancy?

 

            A.        Estrogen from the placenta

            B.        GnRH from the hypothalamus

            C.        hCG from the placenta

            D.        hCG from the conceptus

            E.         LH from the pituitary

 

30.       Of the following, what is the primary effect of maturation?

 

            A.        Prevention of polyspermy

            B.        Initiation of development

            C.        Increase sperm motility

            D.        Restores diploid chromosome number

            E.         Help the sperm fuse with the egg

 

31.       Of the following, how does estrogen affect the secretory phase?

 

            A.        Endometrial thickening

            B.        Increases GnRH levels

            C.        Increases LH levels

            D.        A & C

            E.         A, B & C

 

32.       During which of the following processes do future spermatozoa become haploid?

 

            A.        Spermiogenesis

            B.        Maturation

            C.        Spermatocytogenesis

            D.        Capacitation

            E.         Acrosomal reaction

 

33.       Of the following, which increases the number of sperm produced?

 

            A.        Testosterone

            B.        Oxytocin

            C.        Follicle stimulating hormone

            D.        Luteinizing hormone

            E.         Growth hormone