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Histo Final > 30/31 Male Repro > Flashcards

30/31 Male Repro Flashcards

1
Q

interstitial cells in CT of seminiferous tubules that secrete testosterone

A

LEYDIG cells

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2
Q

sertoli cells have what shape epithellia
also have oblong, euchromatic nucleus and visible nucleolus

A

Columnar epithelal cells

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3
Q

tight junctions between sertoli cells form what kind of barrier

A

Blood Testis Barrier dividing tubule into basal and adluminal compartments
this barrier prevents antigens on developing cells that first appear at puberty from being recognized as foreign by immune system

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4
Q

What do sertoli cells secrete (4)

A

Testicular Fluid
Andorgen Binding Protein
variety of hormones including INHIBIN
Anti Mullerian Hormone

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5
Q

this protein concentrates testosterone

A

ANDROGEN BINDING PROTEIN

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6
Q

this hormone supresses FSH secretion by pituatary

A

IBHIBIN

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7
Q

this hormone causes paramesonephric (Mullerian duct) to degenerate in the embryo
the duct forms the uterine tube and uterus in females

A

ANTI MULLERIAN HORMONE

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8
Q

What penetrates the ovum at fertilization

A

ACROSOME which contains lysosomal enzymes

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9
Q

newly released sperm are nonmotile, and are carried by testicular fluid into duct system.
When do sperm become motile?

A

in the epididymis

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10
Q

round nucleus near basement membrane, replicates

A

SPERMATOGONIA

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11
Q

large nucleus with coiled chromosomes

A

PRIMARY SPERMATOCYTE

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12
Q

small nucleus towards lumen, becomes darker as transforms into spermatozoa

A

SPERMATID

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13
Q

undescended testicles are

A

testes that fail to migrate into the scrotum (CRYTORCHIDISM)

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14
Q

excretory ducts within the testis include (3)

A

straight tubules, rete testis, and efferent ductules

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15
Q

– continuous with seminferous tubules, lined by a simple columnar (sertoli cells) to a simple cuboidal epithelium

A

STRAIGHT TUBULES (TUBULI RECTI)

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16
Q

this anastomosing network of channels in the dense CY of the mediastinum is lined by a simple cuboidal epithelium

A

RETE TESTIS

17
Q

from the rete testis extend 10-20 ductules lined by cuboidal cells with microvilli alternating with tall, ciliated columnar cells.
Non ciliated cells absorb testicular fluid, while cilated cells sweep the sperm towards the epidymis. Thin layer of circular smooth muscle cells surrounds the ductules and helps move the sperm

A

EFFERNT DUCTULES

18
Q

single highly coiled tube lined by pseudostratifed epithalial cells with stereocilia and rounded basal stems

A

EPIDIDYMIS

19
Q

is lined by a pseudostratified epithelium with stereocilia, a thin layer of CY and three THICK smooth muscle layers which contract during ejaculation

A

DUCTUS DEFERENS (VAS DEFERNS)

20
Q

during a vasectomy where does the bilateral ligation occur

A

of the ductus deferens – preventing sperm from entering semen

21
Q

The urethra is divided into 3 regions (PMP)

A

Prostatic
Membranous
Penile

22
Q

Prostatic Urethra is usually lined by

A

TRANSITIONAL EPITHELIUM

23
Q

membranous urethra is found between ___ and ___ and is usually lined by _______

A

prostate and penis and usually lined by pseudostratified epithelium

24
Q

penile urethra is liked by

A

pseudostratified or stratified squamous epithelia

25
Q

The penis has 3 cylindrical masses of erectile tissue surrounded by skin :

A

Corpus Cavernosa of the Penis (2)
Corpus Spongiosum – surrounds the urethra

26
Q

Accessory Male Genital Glands : (4)

A

Seminal Vesicles, Prostate Gland
Bulbourethral Glands
Glands of Littre

27
Q

Whats the major nutrient of sperm

A

FRUCTOSE

28
Q

these are large simple alveolar glands that give a honeycombed appearance to the lumen and secretes a yellowish viscid fluid

A

SEMINAL VESICLES

29
Q

a collection of 30-50 small branched, compound tubulo-alveolar glands whose ducts empty into prostatic urethra
contain isolated smooth muscle cells
secretes a milky fluid containing phosphatase and prostate specific antigen PSA

A

PROSTATE GLAND

30
Q

in older men, calcified glycoprotein accumulations and ____ appear in the secretory alveoli of prostate gland

A

PROSTATIC CONCRETIONS

31
Q

small paired glands lying alongside the membranous urethra secrete thin alkaline mucus into the penile urethra

A

BULBOURETHRAL GLANDS

32
Q

numerous small mucous glands in the corpus spongiosum that discharge along the length of the penile urethra

A

GLANDS OF LITTRE

Histo Final (13 decks)

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