Anatomy of the Male Reproductive System Flashcards Preview

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Flashcards in Anatomy of the Male Reproductive System Deck (41):
1

What is the general function of the reproductive system? 

General Function of the Reproductive System: 

  1. Produce offspring
    1. Initiate and maintain the internal conditions required for production of gamates
    2. Promote 2o sexual characteristics (useful for attracting a mate)
    3. Facilitate joining of the gametes
    4. Provide for early development and care of offspring

2

Define semen. 

Semen: A liqiud medium in which sperm leave the body

  • Also known as seminal fluid

3

Name the accessory glands.

 State what each gland contributes. 

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Accessory glands involved in semen production in order:

  1. Seminal glands
    1. Produce 70% of seminal fluid consisting of:
      1. Buffer (alkaline), fructose, mucus, and clotting factor 
  2. Prostate gland
    1. Buffer (alkaline), mucus, activator (to tell the sperm to swim), and clot buster (allows the sperm to swim)
  3. Cowper's/bulbourethral gland
    1. Buffer (alkaline), and mucus

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4

Trace the pathway of a sperm from its formation site to the external environment. 

Pathway of Sperm

  1. Seminiferous tubule of testes (formation site)
  2. Epididymus
  3. Vas/ ductus deferens 
  4. Ampulla of ductus deferens 
  5. Ejaculatory duct
  6. Prostatic urethra
  7. Spongy (penile) urethra
  8. External urethra orifice
  9. External environment 

 

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5

Identify the structures and their function.

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Male Reproductive System

  1. Vas/ ductus deferens
    1. Sperm transport tube
  2. Prostatic urethra
    1. Connects the ejaculatory duct to the spongy urethra for semen
  3. Pubis
    1. Bone
  4. Corpus cavernosum
    1. Erectile tissue for penis
  5. Corpus spongiosum
    1. Erectile tissue around urethra
  6. Spongy (penile) urethra
    1. Tube for urine and semen
  7. Glans penis
    1. Tip of penis with a high density of nerves
  8. Prepuce
    1. Foreskin
  9. External urethral orfice

6

Identify the structures and their function.

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Male Reproductive Anatomy

  1. Seminal vesicle
    1. Produces 70% of seminal fluid (buffer, mucus, clotting factor, and sugar)
  2. Ampulla of ductus deferens
    1. Enlargement of the ductus deferens at the fundus of the bladder
  3. Ejaculatory duct
    1. ​Formed by the union of the vas deferens with the duct of the seminal vesicle
  4. Prostate gland
    1. Secretes buffer, clot buster, activator, and mucus for semen
  5. Bulbourethral gland/Cowper's 
    1. Secretes buffer and mucus for semen 
  6. Bulb of penis 
    1. Base of penis 

7

Identify the structures and their function.

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Male Reproductive Anatomy

  1. Epididymis
    1. Site of sperm maturation ("sperm college")
  2. Testis
    1. Consists of the seminiferous tubules that make sperm 
    2. Produces testosterone 
  3. Scrotum 
    1. Regulates temperature for testes 

8

Name the structures.

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Male Reproductive System

  1. Peritoneum
  2. Rectum
  3. Anus
  4. Ureter
  5. Urinary bladder
  6. Membranous urethra
  7. Urogenital diaphragm

9

Identify the structures.

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Male Reproductive Anatomy

  1. Urinary bladder
  2. Prostate gland
  3. Prostate urethra
  4. Orifices of prostatic duct
  5. Membranous urethra
  6. Orifice of ureter
  7. Orifices of ejaculatory ducts
  8. Bulbourethral/ Cowper's gland and duct
  9. Urogential diaphragm 

10

Identify the structures.

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Male Reproductive System

  1. Root of penis
  2. Shaft (body of penis)
  3. Bulb of penis
  4. Crus of penis
  5. Bulbourethral/ Cowper's gland opening 
  6. Corpora cavernosa
  7. Corpus spongiosum

11

Identify the structures.

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Male Reproductive System

  1. Spongy (penile) urethra
  2. Glans penis
  3. Prepuce (foreskin)
  4. External urethral orifice 

12

Identify the structures.

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Male Reproductive System

  1. Dorsal vessels and nerves
  2. Skin
  3. Deep arteries
  4. Corpora cavernosa
  5. Urethra
  6. Tunic albuginea of erectile bodies
  7. Corpus spongiosum 

13

Identify the structures.

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Male Reproductive System

  1. Dorsal vein
  2. Dorsal artery
  3. Dorsal nerve
  4. Corpus spongiosum
  5. Corpus cavernosum
  6. Deep fascia 
  7. Superficial fascia

14

Identify the structures. 

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Male Reproductive System

  1. Skin
  2. Urethra
  3. Corpus spongiosum
  4. Prepuce (foreskin)
  5. Glans penis
  6. External urethral orifice 

 

15

Identify the structures. 

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Male Reproductive Anatomy

  1. Deep artery
  2. Tunica albuginea
  3. Lacunae
  4. Median septum

16

Name and give the function of each part of the testis

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Testis

  1. Rete testis
    1. Tubule that carries sperm from seminiferous tubule to efferent duct
  2. Seminiferous tubule
    1. Sperm-forming factories
  3. Lobule
    1. Contains seminiferous tubules
  4. Tunica albuginea
    1. Dense connective tissue (white matter)
  5. Tunica vaginalis 
    1. Serous covering of testis 

 

17

Name of parts of the scrotum.

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Scrotum

  1. Scrotal skin
  2. Dartos muscle
  3. Cremaster muscle
  4. Median septum of scrotum
  5. Perineal raphe

18

Name the parts of the epididymus.

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Epididymus

  1. Head
  2. Body
  3. Tail 

19

What is the function of the duct system for the male reproductive system? 

Aids in the safe delivery of the sperm to the body exterior or female reproductive tract

20

Identify the parts of the duct system in the male reproductive system. 

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Duct System

  1. Ampulla of ductus deferens
  2. Ejaculatory duct
  3. Epididymus
  4. Ductus (vas) deferens
  5. Prostatic urethra
  6. Membranous urethra
  7. Spongy urethra 

21

Define a male ejaculation. 

The action of ejecting semen from the body

Contraction of the ejaculatory duct propels the sperm through the prostate to the prostatic urethra, which in turn empties into the intermediate part of the urethra and then into the spongy urethra, which runs through the length of the penis to the body exterior

22

What is the spermatic cord? 

  • Connective tissue sheath that encloses the ductus deferens along with nerves and blood vessels.
  • Part of duct system

23

24

Parts of the vas/ductus deferens

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  1. Spermatic cord
  2. Blood vessels and nerves
    1. Gonadal artery
    2. Gonadal vein

25

Define vasectomy. 

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a surgical procedure for male sterilization or permanent contraception. During the procedure, the male vas deferens are severed and then tied or sealed in a manner so as to prevent sperm from entering into the seminal stream (ejaculate) and thereby prevent fertilization.

26

27

Name the parts of the penis

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Parts of Penis (Duct System)

  1. Root of penis
  2. Body (shaft) of penis
  3. Glans penis
  4. Bulb of penis
  5. Crus of penis
  6. Corpus cavernosa (erectile tissue)
  7. Corpus spongiosum (erectile tissue)
  8. Prepuce (foreskin)

28

Define erection. 

  • An enlarged and rigid state of the penis, typically in sexual excitement due to the erectile tissues becoming engorged with blood. 

29

Identify histology.

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Testis 

  1. Seminiferous tubule
  2. Interstitial cells (Leydig cells)

30

Identify histology.

 

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Testes

  1. Tunica vaginalis 

  2. Tunica albuginea (testis)
  3. Seminferous tubules

31

Identify histology.

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Testis 

  1. Seminiferous tubule
  2. Interstitial cells (Leydig cells)

32

Identify histology

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Testes

  1. Sertoli cells (nurse cells)
    1. Large faintly irregularly shaped nucleus with prominent nucleous
  2. Spermatogonia

    1. most peripheral germ cell' dark nucleoli in nucleus

  3. Primary spermatocyte

    1.  Large,round, mottled nucleus, off the wall

  4. Early spermatids

    1. Round cell with small nucleus than spermatocytes

  5. Late Spermatids

    1. Dark, condensed nucleus in the process of attaining final shape; sperm tail is also forming; elongated nucleus

  6. Seminiferous tubules

33

Identify histology 1-6

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Male Testes

  1. Sertoli cells

  2. Spermatogonia

  3. Primary Spermatocytes

  4. Early spermatids

  5. Late spermatids

  6. Spermatozoa

34

Identify histology 2-7.

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Male Testes

  1. N/A
  2. Spermatids

  3. Spermatocytes

  4. Spermatogonia

  5. Sertoli cells

  6. N/A

  7. Leydig cells

35

Identify histology.

 

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Male Testes

  1. Visceral vaginal tunic

  2. Tunica albuginea

  3. Intersititial cells

  4. Seminferous cells

36

What type of tissue is this?

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Epididymis 

37

Name the structure and its parts.

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Epididymis 

  1. Head
  2. Body
  3. Tail

38

Name the structure

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Epididymis

39

Name the structure and its parts. 

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Epididymus

  1. Pseudostratified columnar epithelium
  2. Stereocilia (microvilli)
  3. Sperm

40

Name the structure and its parts

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Testes

  1. Sertoli cells
  2. Connective tissue
  3. Spermatogenic cells

41

Name the structure and its functions.

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Epididymus

  1. Sperm
  2. Stereocilia (microvillia)
  3. Pseudostratified columnar epithelium
  4. Smooth muscle