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GIGU and Repro > Male Reproductive Histology > Flashcards

Male Reproductive Histology Flashcards

1
Q

What structure(s) is responsible for sperm and androgen production?

A

Testes

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2
Q

What structure(s) is responsible for sperm transport?

A

Epididymis

Vas Deferens

Ejactulatory duct

Urethra

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3
Q

What structure(s) is responsible for semen production and a source of sperm nutrients?

A

Seminal Vesicle

Prostate Gland

Bulbourethral gland

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4
Q

What structure(s) is a copulatory organ with erectile tissue?

A

Penis

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5
Q

The testes are a paired organ located in thescrotum. They have a dense CT capsule called the Tunica albuginea, which thickens posteriorly to form what?

A. Outer parietal layer of Tunica Vaginalis

B. Inner visceral layer of Tunica Vaginalis

C. Mediastinum testes

D. Epididymis

A

Mediastinum testes

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6
Q

Identify the images A-E.

Indicate the structure that is derived from peritoneum.

A

A. Head of epididymis

B. Tunica Albuginea

C. Tunica Vaginalis- peritoneum derived

D. Rete Testis

E. Body of Epididymis

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7
Q

What structure is found with in septally formed lobules?

What cells can you find contained within the lobules?

What cells will you find between the structure in question?

A

Seminiferous Tubules

(lined with specialized seminiferous epithelium)

Sertoli Cells and Spermatogenic cells

cells of Leydig

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8
Q

Identify the indicated structures

Which ones have contractile capabilities

A

A: Sertoli Cells

B. Early spermatids

C: Late spermatids

D: Spermatagonia

E: Peritubular myoid cells

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9
Q

Which of the following structures is the source of testosterone?

A

B

cells of leydig

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10
Q

SEminiferous epithelium is stratified epithelium with unusual characteristics as it houses sertoli cells and spermatogenic cells. Which of the following is true of these cells?

A. Sertoli cells are columnar with no nucleus

B. Most immature spermatogonia are found on basal lamina

C. Most mature spermatids are attached to the basal portion of sertoli cells

D. Most immature spermatogonia are found inear tubular lumen

A

A. Sertoli cells are columnar with no nucleus - cyclops nucleus

B. Most immature spermatogonia are found on basal lamina

C. Most mature spermatids are attached to the basal portion of sertoli cells - apical portion of sertoli cells

D. Most immature spermatogonia are found inear tubular lumen - most mature spermatids

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11
Q

Which of the following cells forms a blood testis barrier via fusion of their basolateral membranes, and phagocytosis residual bodies of spermatogenic cells?

A

A

sertoli cells

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12
Q

What letter indicates the most likely location of the Blood Testis Barrier?

A

C

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13
Q

Which of the following is able to generate copies of itself and differentiate into another type of spermatogonia that can enter meiotic prophase?

A. Type A spermatogonia

B. Type B spermatogonia

C. Type C spermatogonia

D. Type D spermatogonia

A

Type A spermatogonia

basically a stem cell

NOTE: Type B are the ones that can enter meiotic prophase as primary spermatocytes

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14
Q

Which of the following spermatogenic cells can be found both above and below the blood testis barrier?

A. Type A spermatogonia

B. Type B spermatogonia

C. Primary Spermatocytes

D. Secondary spermatocytes

E. Spermatids

A

Primary spermatocytes

  • primary (early) spermatocytes must pass through the junctional complex made by ertoli cells to move from basal to adluminal compartment
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15
Q

T/F: The blood testis barrier acts to isolate haploid germ cells (secondary spermatocytes, spermatids, and sperm) from system circulation

A

True

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16
Q

Which of the following are most likely to be housed in the apical crypts of Sertoli cells?

A. Round (early) spermatids

B. Elongated (late) spermatids

C. Residual bodies

D. Mature Functional sperm

A

Elongated (late) spermatids

NOTE: Round (early) spermatids are housed in niches of sertoli cells

17
Q

What is the name of the process in which mature spermatids are released (intracellular bridges –> residual bodies –> lost and mature spermatid are seperated)?

A. Spermatogenesis

B. Ejaculation

C. Spermiation

D. Spermatozoaction

A

Spermiation

18
Q

What portion of the sperm contains mitochondria?

A. Head

B. Neck

C. Middle Piece

D. Principle piece

E. End piece

A

A. Head - contains flat elongated nucleus

B. Neck

C. Middle Piece

D. Principle piece- longest piece

E. End piece

19
Q

What is the sperm transport pathway starting from the straight tubules?

A

Straight Tubules

Rete Testis

Efferent ductules

Epidiymis

Ductus Deferens

Ejaculatory duct

S REEDE

20
Q

After what sperm transport pathway structure do you only see pseudostratified columnar with decreasing amounts of stereocilia?

A. After straight tubulues

B. After Rete testis

C. After efferent ductules

D. After epididymis

A

C. After efferent ductules

21
Q

The epididymis is a highly coiled, long duct where sperm mature, and is comprised of a head, body and tail with thin, circular smooth muscle layers. In what region can you find an additional inner and outer layer of longitudinal smooth muscle?

A. Head

B. Body

C. Tail

D. No where

A

Tail

22
Q

What structure is depicted?

A. Efferent ductules

B. Epididymis

C. Rete Testis

D. Ductus Deferens

A

Epididymis

  • pseudostratified epithlium with long stereocilia
23
Q

What structure is depicted?

A. Rete Testis

B. Epididymis

C. Ductus Deferens

D. Ejaculatory Duct

A

C. Ductus Deferens

  • external layer consists of loos CT and adipocytes
24
Q

Which of the following portions of the ductus deferens leads directly into the prostate gland?

A. Ampulla

B. Distal end

C. Proximal End

D. None of the above

A

Ampulla

NOTE: Distal end receives the ducts of the seminal vesicle which forms the ejaculatory duct

25
Q

Look at this

A

Cool

26
Q

What accessory glands produce majority of seminal fluid and are regulated bu T and DHT?

A. Seminal vesicles and bulbourethral gland

B. Prostate and urethral gland

C. Bulbourethral glands and urethral gland

D. Prostate gland and seminal vesicles

A

Prostate gland and seminal vesicles

27
Q

Name the 3 accessory glands currently depicted?

A
28
Q

What is the order of the zones that make up the prostate gland in order of smallest/closest to urethra to largest and longest ducts of periurethral glands?

A

Transition zone

Central zone

Peripheral zone

29
Q

What part of the urethra marks the end site of the prostatic ducts and ejaculatory ducts?

A. Intramural part

B. Prostatic part

C. Membranous part

D. Penile/Spongy part

A

Prostatic part

30
Q

What is the name of the hallmark feature of the prostate, that is rich in glycoproteins and Calcium deposits?

A

Concretion (Corpora Amylacea)

31
Q

What accessory gland produces a Zn-rich alkaline fluid?

A. Seminal Vesicles

B. Prostate Gland

C. Bulbourethral gland

D. Urethral Gland

A

Prostate Gland

seminal vesicles- fructose and prostaglandin rich

bulbourethral- mucus rich

32
Q

What accessory gland is meant to secrete fluid that lubricates the penile urethra and neutralize traces of acidic urine?

What cell type is it lined with?

A

Bulbourethral gland

Simple columnar

33
Q

The glans penis is part of what portion of the penis?

A. Right Corpus cavernosa

B. Left corpus cavernosum

C. ventral corpus spongiosum

D. Right and Left corpora cavernosa

A

ventral corpus spongiosum

34
Q

Which part of the penis is surrounded by the tunica albuginea?

A. Right Corpus cavernosa

B. Left corpus cavernosum

C. ventral corpus spongiosum

D. Right and Left corpora cavernosa

A

Right and Left corpora cavernosa

35
Q

Look at this picture

A

Cool

36
Q

Select all of the following cells that are diploid (46 chromosomes)

A. Type A spermatogonia

B. Type B spermatogonia

C. primary spermatocyte

D. secondary spermatocyte

E. Early spermatids

F. Late spermatids

A

A. Type A spermatogonia

B. Type B spermatogonia

C. primary spermatocyte

37
Q

Spermiation is the release of mature spermatids into the lumen of seminiferous tubules. At this point, what is true of the cells?

A. They are fully formed and functional

B. They are diploid with residual bodies intact

C. They are considered fully formed spermatazoa, that are not yet functional

D. None of the above

A

They are considered fully formed spermatazoa, that are not yet functional

38
Q

The hydrolytic enzyme called acrosome is located:

A. Head of the spermatazoa

B. Middle piece of spermatazoa

C. Principle piece of spermatazoa

D. Tunica albuginae of the ovary

A

A. Head of the spermatazoa

GIGU and Repro (35 decks)

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