Reproductive System 28 - PC\|MAC



Reproductive System 27 - 28

Anatomy of the Male Reproductive System

1. Using the key choices, select the terms identified in the following descriptions. Insert the appropriate letter in the answer blanks.

a. urethra e. glans penis i. epididymis

b. penis f. ductus deferens j. prostate gland

c. testes g. seminal vesicles k. bulbourethral glands

d. prepuce h. scrotum

_____ 1. Organ that delivers semen to the female reproductive tract

_____ 2. Site of sperm and testosterone production

_____ 3. Passageway for conveying sperm from the epididymis to the ejaculatory duct

_____ 4. Conveys both sperm and urine down the length of the penis

_____ 5. Organs (5-8) that contribute to the formation of semen

_____ 6.

_____ 7.

_____ 8.

_____ 9. External skin sac that houses the testes

_____ 10. Tubular storage site for sperm; hugs the lateral aspect of the testes

_____ 11. Cuff of skin encircling the glans penis

_____ 12. Surrounds the urethra at the base of the bladder; produces a milky alkaline fluid

_____ 13. Produces over half of the seminal fluid

_____ 14. Empties a lubricating mucus into the urethra

2. Figure 27-1 is a sagittal view of the male reproductive structures. First, identify the following organs on the figure by placing the correct letter in the answer blanks. Next, select different colors that correspond to the following descriptions, and color in the coding circles and the corresponding structures on the figure.

a. testis e. ductus deferens i. glans penis

b. urethra f. ejaculatory duct j. scrotum

c. seminal vesicle g. epididymis k. bulbourethral gland

d. prostate gland h. prepuce

_____ 1.

_____ 2.

_____ 3.

_____ 4.

_____ 5.

_____ 6.

_____ 7.

_____ 8.

_____ 9.

_____ 10.

Spongy tissue that is engorged with blood during erection

Portion of the duct system that also serves the urinary system

Structure that provides the ideal temperature conditions for sperm formation

Structure removed in circumcision

Gland whose secretion contains sugar to nourish sperm

Structure cut or cauterized during a vasectomy

3. Figure 27-2 is a longitudinal section of a testis. First, insert the appropriate letter in the answer blanks. Second, select different colors for the structures that correspond to the following descriptions. Then color the coding circles and color the corresponding structures on the figure.

a. tunica albuginea d. epididymis g. seminiferous tubule

b. septum e. lobule

c. rete testis f. ductus deferens

_____ 1.

_____ 2.

_____ 3.

_____ 4.

_____ 5.

_____ 6.

Sites(s) of spermatogenesis

Tubular structure in which

sperm mature and become

motile

Fibruous coat protecting the

testis

Hormonal Regulation of Male Reproductive Function

4. This section considers the process of sperm production in the testis. Using the key choices, select the terms identified in the following descriptions.

a. testosterone e. follicle-stimulating hormone (FSH)

b. sperm f. spermatogonium

c. spermatid g. primary spermatocyte

d. secondary spermatocyte

_____ 1. Primitive stem cell

_____ 2. Contain 23 chromosome (3 answers)

_____ 3.

_____ 4.

_____ 5. Product of meiosis I

_____ 6. Product of meiosis II

_____ 7. Functional motile gamete

_____ 8. Two hormones necessary for sperm production (8-9)

_____ 9.

5. Figure 27-3 illustrates a single sperm. On the figure, bracket and label the head and the midpiece and circle and label the tail. Select different colors for the structures that correspond to the following descriptions. Color the coding circles and corresponding structures on the figure. Then label the structures, using the correct terminology.

The DNA-containing area

The enzyme-containing sac that aids sperm penetration of the egg

Metabolically active organelles that provide ATP to energize sperm movement

Anatomy of the Female Reproductive System

6. Identify the female structures described by inserting the correct letter in the answer blanks.

a. vagina d. fimbriae g. fallopian tube

b. uterus e. hymen h. seminiferous tubule

c. ovary f. clitoris

_____ 1. Chamber that houses the developing fetus

_____ 2. Canal that receives the penis during sexual intercourse

_____ 3. Usual site of fertilization

_____ 4. Erects during sexual stimulation

_____ 5. Duct through which the ovum travels to reach the uterus

_____ 6. Membrane that partially closes the vaginal canal

_____ 7. Primary female reproductive organ

_____ 8. Move to create fluid currents to draw the ovulated egg into the fallopian tube

7. Figure 27-4 is a sagittal view of the female reproductive organs. First, label all structures on the figure using the key choices. Then select different colors for the following structures, and use them to color the coding circles and corresponding structures on the figure.

a. vagina e. labium majus i. clitoris

b. fimbriae f. endometrium

c. ovary g. fallopian tube

d. uterus h. cervix of uterus

_____ 1.

_____ 2.

_____ 3.

_____ 4.

_____ 5.

_____ 6.

_____ 7.

_____ 8.

_____ 9.

Lining of the uterus, endometrium

Muscular layer of the uterus, myometrium

Pathway along which an egg travels from the time of its release to its implantation

Ligament helping to anchor the uterus

Structure forming female hormones and gametes

8. Figure 27-5 is a sectional view of the ovary. First, identify all structures indicated with leader lines on the figure. Second, select different colors for the following structures, and use them to color the coding circles and corresponding structures on the figure.

a. vesicular follicles c. secondary oocyte e. antrum

b. primary follicles d. granulosa cells f. corpus lutea

_____ 1.

_____ 2.

_____ 3.

_____ 4.

_____ 5.

_____ 6.

Cells that produce estrogen

Glandular structure that produces progesterone

All oocytes

Third, in the space provided, name the event depicted as “Event A” on the figure. _______________

Fourth, answer the following questions by inserting your answers in the spaces provided.

1. Are there any oogonia in a mature female’s ovary? ____________

2. Into what area is the ovulated cell released? ______________________________

3. When is a mature ovum (egg) produced in humans? _________________________________

4. What structure in the ovary becomes a corpus luteum? ______________________________

9. Using the key choices, select the terms that are identified in the following descriptions. Insert the correct letter response in the answer blanks.

a. zygote d. placenta g. endometrium

b. umbilical cord e. amnion h. fertilization

c. fetus f. chorionic villi

_____ 1. The fertilized egg

_____ 2. Secretes estrogen and progesterone to maintain the pregnancy

_____ 3. Cooperate to form the placenta (3-4)

_____ 4.

_____ 5. Fluid-filled sac, surrounding the developing embryo/fetus

_____ 6. Attaches the embryo to the placenta

_____ 7. Fingerlike projections of the blastocyst

_____ 8. The embryo after 8 weeks

_____ 9. The organ that delivers nutrients to and disposes of wastes for the fetus

_____ 10. Event leading to combination of ovum and sperm “genes”

Gastrulation: Germ Layer Formation

10. The first “tissues” of the embryo’s body are the primary germ layers:

a. mesoderm b. endoderm c. ectoderm

Indicate which germ layer give rise to each of the following structures by placing the corresponding letter on the answer blank.

_____ 1. Heart and blood vessels

_____ 2. Digestive system mucosa

_____ 3. Brain and spinal cord

_____ 4. Skeletal muscles

_____ 5. Skin epidermis

_____ 6. Bones

_____ 7. Respiratory system mucosa

_____ 8. Liver and pancreas

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