McDChapter 16: The Reproductive System

Male Reproductive System .....

p. 506

A. Figure 16.2 is a sagittal view of the male reproductive structures. Identify thefollowing organs on the figure by writing each term at the appropriate leader line.

Bulbourethral glandErectile tissueProstate glandUrethra

Ductus deferens Ejaculatory duct EpididymisGlans penis PrepuceSeminal vesicle Scrotum Testis

Urinarybladder

Symphysispubis

Rectum

B. Match each term with the appropriate anatomical descriptions.

a. bulbourethral gland (3) b. ductus deferens c. erectile tissue

(3) d. epididymis e. glans penis f. penis

(2) g. prepuce h. prostate gland (2)i. seminal vesicles

(2)j. scrotum k. testes (2)1. urethra

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,, 1. Paired dorsal columns of spongy tissue that is engorged with bloodduring erection, causes the penis to enlarge and become rigid ÿ

L_ 2. Portion of the duct system that also serves the urinary system %Lÿ e_k-Jÿ-cx_..

D 4.

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Structure that provides the ideal temperature conditions for spermformation ÿ('0ÿ4.) ÿ'ÿ

Structure cut or cauterized during a vasectomy (ÿCÿ ÿ6ÿ-Xÿ4"tÿ

Structure removed in circumcision 0 ('ÿ-ÿ %)(Lg,-Gland whose secretion contains sugar to nourish sperm iÿ0,,ÿ._ÿaÿ %JÿLÿ ÿ Cÿ0ÿStructure that stores immature sperm ÿ,ÿ &ÿ ÿOrgan that delivers semen to the female reproductive tract ÿ)0.iKLÿSite of sperm and testosterone production Lÿ-ÿ.ÿ9

Passageway for conveying sperm from the epididymis to the ejaculatoryduct ÿdd'cÿ ÿdÿ'a_ÿ

Conveys both sperm and urine down the length of the penis %t.Xÿvÿ\V,ÿExternal skin sac that housed the testes b CX'OÿOÿHugs the lateral aspect of the testes 9,dptckÿ_ÿ.ÿb -Cuff of skin encircling the glans penis (hYÿSurrounds the urethra at the base of the bladder; produces a milky alkaline

fluid ÿ£)L,ÿvÿ_ÿ O3ÿwÿ-ÿ _ , "\

Produces over half of the seminal fluid ÿ6ÿCt_k %/0_2ÿL,LtÿEmpties a lubricating mucus into the urethra ÿ(0ÿ %t£ ©ÿ,('cÿ CSite where sperm become both motileand fertile ÿf)l PÿÿLK%Also known as vas deferens c(_ÿ c,ÿ C_ÿLÿ" ÿv,dv ÿ" "ÿ"- - - (ÿ

Enlarged tip of penis Oÿxÿ' ÿ3 ©V',Kÿ

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C. Explain how the scrotal muscles (dartos and cremaster) help to maintain

temperature homeostasis of the testes?

W. Figure 16.5 illustrates a single sperm. P. 510

Label" Acrosome, Head, Midpiece, Mitochondria, Nucleus, Tail

1. Which is the,DNA cgntaining area? vÿL ÿ]L ÿ0.xLÿ

2. a. Which is the enzyme-containing sac?-0xe

b. What its function?

3. Which labeled structure is an organelIe that provide ATP to energize'sperm movement? ÿ) Cÿ ÿ (ÿCt..,

E. There are many hormones that play various roles in the male reproductive system,II //

but which hormone is considered to be the male sex hormone.ÿ_,ÿxÿ ÿr-ÿ ÿ ÿzj 'ÿ ÿ'k-ÿrÿ'Oÿ'ÿBriefly discuss its role.

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