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Quiz on Histology , created by #أطباء_2020 on 21/01/2015.

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Histology

Histology

Each question in this quiz is timed.

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Question 1 of 30

1

About hypothalamo-hypophyseal axis all are true except :

Select one of the following:

Hypothalamus connected to pars nervosa through hypothalamo-hypophyseal tract
Hypothalamus is connected to pars distalis by tuberoinfundibular tract
Cells connected to hypothalamus are neurosecretory (neuroendocrine) cells
All cells of pars distalis are controlled by releasing and inhibitory factors from hypothalamus

Explanation

Question 2 of 30

1

Thyroid follicular cells contain all the following except :

Select one of the following:

rER
sER
Mitochondria
Lysosomes

Explanation

Question 3 of 30

1

The most highly vascularized area of the hypophysis is the :

Select one of the following:

Pars distalis
Pars nervosa
Pars tuberalis
Pars intermedia

Explanation

Question 4 of 30

1

Spongiocytes are cells of :

Select one of the following:

Zona glomerulosa of the suprarenal cortex
Zona fasciculata of the suprarenal cortex
pars tuberalis of pituitary gland
suprarenal medulla

Explanation

Question 5 of 30

1

Premature puberty of a child may be due to hypofunction of :

Select one of the following:

Gonadotrophs
sertoli cells
pinealocytes
mammotrophs

Explanation

Question 6 of 30

1

oxyphil cells of parathyroid gland are strongly acidophilic due to :

Select one of the following:

Numerous rER
Numerous lipid droplets
Abundant mitochondria
Plenty of lysosomes

Explanation

Question 7 of 30

1

Tanycytes

Select one of the following:

secrete releasing and inhibiting hormones
facilitate the hypothalamic control of anterior pituitary
are cells of pars nervosa
Are phagocytic cells

Explanation

Question 8 of 30

1

Chromophobes are characterized by all the following Except :

Select one of the following:

constitute 10% of pars distalis
have no or little affinity for the stains
have no or few secretory granules
Polygonal cells

Explanation

Question 9 of 30

1

Suprarenal gland:

Select one of the following:

the medulla is ectodermal in origin
Its cortex is endodermal in origin
has thin connective tissue capsule
Its cortex is formed of 2 layers

Explanation

Question 10 of 30

1

Herring bodies are structures present in :

Select one of the following:

the herring canals in the liver
cells of adrenal medulla
Pars nervosa of pituitary gland
Thyroid gland of old age

Explanation

Question 11 of 30

1

structures typically seen at the border between the renal cortex and medulla are

Select one of the following:

vasa recta
peritubular capillaries
arcuate arteries and veins
stellate vein
interlobular arteries and veins

Explanation

Question 12 of 30

1

collections of cortical tissues between medullary pyramids are called

Select one of the following:

interlobular cortex
renal columns of bertin
medullary rays
non of the above

Explanation

Question 13 of 30

1

DCT of the kidney

Select one of the following:

has well developed brush border
lacks a basement membrane
is composed of simple cubical epithelium
has numerous rough ER assosciated with basal membrane invagination

Explanation

Question 14 of 30

1

all about DCT are true except

Select one of the following:

about 14 mm
30-40 um in diameter
formed of straight , convoluted and macula densa portions
rich in mitochondria oriented longitudinally

Explanation

Question 15 of 30

1

facet cells

Select one of the following:

are superficial cells of transitional epithelium
cuboidal cells may be binucleated
act as osmotic barrier between urine and tissue fluid
all of the above

Explanation

Question 16 of 30

1

all of the following makes the juxtaglomerular apparatus except

Select one of the following:

podocytes
juxtaglimerular cells
macula densa
lacis cells

Explanation

Question 17 of 30

1

projection of medulla in the renal cortex

Select one of the following:

medulla
lobe
renal columns
medullary rays

Explanation

Question 18 of 30

1

kidney secretes all except

Select one of the following:

renin
medullipin
erythropoietin
rennin

Explanation

Question 19 of 30

1

nephron cosists of all except

Select one of the following:

malpighian corpuscle
thick limb of loop of henle
thin limb of loop of henle
collecting tubules

Explanation

Question 20 of 30

1

the membranous urethra is lined with

Select one of the following:

stratified squamous epithelium
stratified columnar epithelium
transitional epithelium
pseudo-stratified columnar ciliated epithelium

Explanation

Question 21 of 30

1

the serous sac which covers the anterior and lateral surfaces of the testis is called :

Select one of the following:

tunica vaginalis
tunica vasculosa
tunica propria
tuunica albuginea

Explanation

Question 22 of 30

1

which of the following cells can alter the diameter of seminferous tubules :

Select one of the following:

sertoli
myoid
spermatid
spermatogonia

Explanation

Question 23 of 30

1

type B spermatogonia originates from :

Select one of the following:

pale type A spermatogonia
dark type A spermatogonia
primary spermatocytes
spermatids

Explanation

Question 24 of 30

1

the interstitial cells of leydig contain all the following EXCEPT :

Select one of the following:

basophilic cytoplasm
mitochondria with tubular cristea
well developed SER
numerous lipid droplets

Explanation

Question 25 of 30

1

primary spermatocytes are charichterized by all the following except :

Select one of the following:

contains 64 D-chromosomes + 2N DNA
appear at puberty
the largest spermatogenic cells
originate from type B spermatogonia

Explanation

Question 26 of 30

1

crystals of rienke are present in the :

Select one of the following:

spermatids
myoid cells
sertoli cells
leydig cells

Explanation

Question 27 of 30

1

these intratesticular ducts arise from the rete testis :

Select one of the following:

tubuli recti
vas deferens
ductuli efferentes
seminferous tubules

Explanation

Question 28 of 30

1

the prostatic urethra is lined with :

Select one of the following:

st. squamous epithelium
transitional epithelium
st. columnar epithelium
pseudostratified columner epithelium

Explanation

Question 29 of 30

1

the skin of the penis is charicterized by all of the following except :

Select one of the following:

pigmented
has no subcutaneous fat
thick skin
highly sensitive

Explanation

Question 30 of 30

1

the middle piece of spermatozoa is rich in :

Select one of the following:

ribosomes
smooth endoplasmic reticulum
lysosomes
mitochondria

Explanation