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. bulbourethral glandse. penis i. scrotum
b. epididymis f. prepuce j. testes
c. ductus deferensg. prostate glandk. urethra
d. glans penish. seminal vesicles
_____ 1. Produces over half of the seminal fluid
_____ 2. Conveys both sperm and urine down the length of the penis
_____ 3. Tubular storage site for sperm; hugs the lateral aspect of the testes
_____ 4. Empties a lubricating mucus into the urethra
_____ 5. Organ that delivers semen to the female reproductive tract
_____ 6. External skin sac that houses the testes
_____ 7. Passageway for conveying sperm from the epididymis to the ejaculatory duct
_____ 8. Site of sperm and testosterone production
_____ 9. Cuff of skin encircling the glans penis
_____ 10. Surrounds the urethra at the base of the bladder; produces a milky alkaline fluid
_____ 11. Organs (11-14) that contribute to the formation of semen
_____ 12.
_____ 13.
_____ 14.
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.
- ductus deferense. prepuce i. seminal vesicle
- glans penis f. prostate glandj. testis
- ejaculatory ductg. urethrak. scrotum
- bulbourethral glandh. epididymis
_____ 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.
- epididymisd. seminiferous tubuleg. rete testis
- lobulee. septum
- ductus deferensf. tunica albuginea
_____ 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. follicle-stimulating hormone (FSH)e. sperm
b. primary spermatocyte f. spermatid
c. secondary spermatocyteg. testosterone
- spermatogonium
_____ 1. Product of meiosis I
_____ 2. Product of meiosis II
_____ 3. Two hormones necessary for sperm production (3-4)
_____ 4.
_____ 5. Functional motile gamete
_____ 6. Primitive stem cell
_____ 7. Contain 23 chromosome (3 answers)
_____ 8.
_____ 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.
- clitorisd. hymeng. uterus
- fallopian tubee. ovaryh. vagina
- fimbriae f. seminiferous tubule
_____ 1. Usual site of fertilization
_____ 2. Erects during sexual stimulation
_____ 3. Duct through which the ovum travels to reach the uterus
_____ 4. Membrane that partially closes the vaginal canal
_____ 5. Primary female reproductive organ
_____ 6. Move to create fluid currents to draw the ovulated egg into the fallopian tube
_____ 7. Canal that receives the penis during sexual intercourse
_____ 8. Chamber that houses the developing fetus
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.
- clitorise. labium majusi. fimbriae
- endometrium f. ovary
- fallopian tubeg. uterus
- cervix of uterush. vagina
_____ 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.
- corpus luteac. primary folliclese. vesicular follicles
- atriumd. granulosa cellsf. secondary oocyte
_____ 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.
- When is a mature ovum (egg) produced in humans? ______
- What structure in the ovary becomes a corpus luteum? ______
- Are there any oogonia in a mature female’s ovary? ______
- Into what area is the ovulated cell released? ______
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. amniond. fertilizationg. umbilical cord
b. chorionic villie. fetush. zygote
c. endometriumf. placenta
_____ 1. Cooperate to form the placenta (1-2)
_____ 2.
_____ 3. Fluid-filled sac, surrounding the developing embryo/fetus
_____ 4. Secretes estrogen and progesterone to maintain the pregnancy
_____ 5. Fingerlike projections of the blastocyst
_____ 6. The embryo after 8 weeks
_____ 7. The organ that delivers nutrients to and disposes of wastes for the fetus
_____ 8. Event leading to combination of ovum and sperm “genes”
_____ 9. Attaches the embryo to the placenta
_____ 10. The fertilized egg
Gastrulation: Germ Layer Formation
10. The first “tissues” of the embryo’s body are the primary germ layers:
a. ectodermb. mesodermc. endoderm
Indicate which germ layer give rise to each of the following structures by placing the corresponding letter on the answer blank.
_____ 1. Brain and spinal cord
_____ 2. Skeletal muscles
_____ 3. Skin epidermis
_____ 4. Bones
_____ 5. Respiratory system mucosa
_____ 6. Liver and pancreas
_____ 7. Digestive system mucosa
_____ 8. Heart and blood vessels