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Histology > Histology Of The Male Reproductive Tract > Flashcards

Histology Of The Male Reproductive Tract Flashcards

1
Q

What is the average testis

A

15-19g

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2
Q

What makes up the tunica vaginalis

A

Flattened layer of mesothelial cells

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3
Q

What is tunica albuginea made up of

A

Collagen fibres with some fibroblasts, myocytes and nerve fibres

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4
Q

What makes up the tunica vasculosa

A

Loose connective tissue containing blood vessels and lymphatics

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5
Q

What is testicular parenchyma divided into

A

Lobules by a septa originating from the capsule

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6
Q

What do seminiferous tubules contain

A

Germ cells in varying stages of maturation and Sertoli cells

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7
Q

What are the characteristics of a type B differentiating progenitor cells

A

Spherical nucleus
Densely stained masses of chromatin

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8
Q

What are the characteristics of a type A differentiating progenitor cells

A

Darkly stained stem cells
Pale stained cells

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9
Q

What are the characteristics of Sertoli cells

A

Columnar cells on the basement membrane of the tubule

Send cytoplasmic projections around germ cells

Nuclei are irregular shape
Folded
Prominent nucleolus

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10
Q

What functions do Sertoli cells have

A

Supportive
Phagocytic
Secretory

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11
Q

What makes up a spermatozoa

A

Head containing acrosomal cap and nucleus
Midpiece containing spiral mitochondria
Tail containing neck with centrioles, axoneme and plasma membrane

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12
Q

Where are leydig cells found

A

They present singly and in clusters in the interstitium between the tubules

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13
Q

What is the function of leydig cells

A

Produce testosterone

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14
Q

What is rete testis

A

Anastomosing network of tubules at the hilum of the testis

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15
Q

What tissue type lines the rete testis

A

Simple squamous or low columnar epithelium on a thick basement membrane

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16
Q

What is present in the rete testis luminal surface

A

Cilia

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17
Q

Where do convoluted tubules empty into

A

The epididymis

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18
Q

What tissue are the efferent ducts lined by

A

Ciliated and non-ciliated simple columnar epithelium with inter spread cuboidal basal cells which give a pseudostratified appearance

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19
Q

What is the epididymis

A

A tubular structure which is about 4-5cm long

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20
Q

What tissue lines the epididymis

A

Tall columnar cells with atypical cilia supported by a thick basement membrane

21
Q

Where can you find the vas deferens

A

Arises from the caudal portion of epididymis

22
Q

What tissue lines the vas deferens

A

Pseudo-stratified columnar epithelium comprised of columnar and basal cells

23
Q

What is a characteristic of the vas deferens

A

Thick muscular wall made up of 3 layers

24
Q

What is the prostate

A

A pear shaped glandular organ

25
Q

What does an average prostate weigh

A

20g

26
Q

Where is the prostate located

A

Surrounds the neck of the bladder and the prostatic urethra

27
Q

What lobes make up the prostate

A

Anterior, middle, posterior and 2 lateral lobes

28
Q

What are acini

A

Tubuloalveolar glands with convoluted edges

29
Q

What lines the acini

A

They are lined by the secretory cells, basal cells and neuroendocrine cells

30
Q

Where are the secretory cells located in the acini

A

They are located in the luminal side of the glands

31
Q

What makes up the stroma of the prostate

A

Smooth muscle
Fibroelastic fibres
Blood vessels
Nerves

32
Q

What are and where are seminal vesicles located

A

Paired highly coiled tubular structures found posterolateral to the bladder

33
Q

Where do seminal vesicles empty into

A

Ejaculatory ducts

34
Q

What tissue lines the seminal vesicles

A

Tall non-ciliated columnar epithelium

35
Q

The erectile tissue is arrange into 3 components what are they

A

Left and right corpora cavernosa on the dorsal side and the corpus spongiosum on the inferior side

36
Q

What does erectile tissue comprise of

A

Irregular vascular spaces seperated by fibroelastic tissue and smooth muscle with a rich nerve supply

37
Q

Where is the bulk of the seminal fluid produced

A

Prostate, seminal vesicles and coppers glands produce most of the seminal fluid

38
Q

What tissue is this

A

Testicular parenchyma

39
Q

What is this showing

A

The testis

40
Q

What are the different arrows pointing to

A

Top arrow = spermatozoon
Second arrow = spermatid
Third arrow = secondary spermatocyte
Forth arrow = primary spermatocyte
Fifth arrow = spermatogonia
Sixth arrow = type b differentiating progenitor cell

41
Q

What is the arrows pointing to

A

Sertoli cells

42
Q

What is this showing

A

Leydig cells

43
Q

What is this showing

A

Epididymis

44
Q

What is this showing

A

Vas deferens

45
Q

What is this showing

A

Ducts and acini of the prostate

46
Q

What is this showing

A

Stroma of the prostate

47
Q

What is this showing

A

Seminal vesicles

48
Q

What is this tissue showing

A

Erectile tissue of the penis

Histology (18 decks)

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