Unit 20

In this diagram of fertilization, the structure labeled "2" is:

• Corona Radiata

• Zona Pellucida

• Cumulus Oophorus

• Follicular Fluid

Which of the following is a characteristic of the male reproductive system, but not the female?

• passageway for urine and gametes shared by urinary and reproductive system

• presence of ovaries

• ability to carry a fetus

• production of eggs

In the uterine cycle, implantation must occur during _______________ or menstruation will begin again.

• Days 5-15

• Days 15-25

• Days 25-35

• Days 1-5

The structure labeled "10" in the diagram is:

• Epididymis

• Vas deferens

• Seminal vesicle

• Testis

Which of the following structures in the male is functionally equivalent to the female ovary?

• testis

• prostate

• seminal vesicle

• bulbourethral gland

The placenta is derived from:

• embryonic and maternal tissues in roughly equal amounts

• only maternal tissues

• only embryonic tissues

• tissues from the father

Between birth and menarche, the female gametes are present in the ovary as:

• primary oocytes

• secondary oocytes

• ova

• polar bodies

The structure labeled "11" in this diagram is the:

• Mouth

• Anus

• Esophagus

• Stomach

Secondary sexual characteristics in males include:

• denser body hair on the face, chest, pubic region, arms, and legs

• increased muscle mass and strength

• higher pitch voice

• wider hips and narrower shoulders

Among the functions of relaxin are:

• inhibit contraction of uterine smooth muscle

• increase flexibility of pubic symphysis

• dilate cervix

• increase uterine contractions