1894722
Descripción
Test por #أطباء_2020 , actualizado hace más de 1 año
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Creado por #أطباء_2020
hace casi 10 años
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Pregunta 1
Pregunta
About hypothalamo-hypophyseal axis all are true except :
Respuesta
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Hypothalamus connected to pars nervosa through hypothalamo-hypophyseal tract
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Hypothalamus is connected to pars distalis by tuberoinfundibular tract
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Cells connected to hypothalamus are neurosecretory (neuroendocrine) cells
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All cells of pars distalis are controlled by releasing and inhibitory factors from hypothalamus
Pregunta 2
Pregunta
Thyroid follicular cells contain all the following except :
Respuesta
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rER
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sER
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Mitochondria
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Lysosomes
Pregunta 3
Pregunta
The most highly vascularized area of the hypophysis is the :
Respuesta
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Pars distalis
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Pars nervosa
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Pars tuberalis
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Pars intermedia
Pregunta 4
Pregunta
Spongiocytes are cells of :
Respuesta
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Zona glomerulosa of the suprarenal cortex
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Zona fasciculata of the suprarenal cortex
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pars tuberalis of pituitary gland
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suprarenal medulla
Pregunta 5
Pregunta
Premature puberty of a child may be due to hypofunction of :
Respuesta
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Gonadotrophs
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sertoli cells
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pinealocytes
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mammotrophs
Pregunta 6
Pregunta
oxyphil cells of parathyroid gland are strongly acidophilic due to :
Respuesta
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Numerous rER
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Numerous lipid droplets
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Abundant mitochondria
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Plenty of lysosomes
Pregunta 7
Pregunta
Tanycytes
Respuesta
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secrete releasing and inhibiting hormones
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facilitate the hypothalamic control of anterior pituitary
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are cells of pars nervosa
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Are phagocytic cells
Pregunta 8
Pregunta
Chromophobes are characterized by all the following Except :
Respuesta
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constitute 10% of pars distalis
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have no or little affinity for the stains
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have no or few secretory granules
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Polygonal cells
Pregunta 9
Pregunta
Suprarenal gland:
Respuesta
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the medulla is ectodermal in origin
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Its cortex is endodermal in origin
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has thin connective tissue capsule
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Its cortex is formed of 2 layers
Pregunta 10
Pregunta
Herring bodies are structures present in :
Respuesta
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the herring canals in the liver
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cells of adrenal medulla
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Pars nervosa of pituitary gland
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Thyroid gland of old age
Pregunta 11
Pregunta
structures typically seen at the border between the renal cortex and medulla are
Respuesta
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vasa recta
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peritubular capillaries
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arcuate arteries and veins
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stellate vein
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interlobular arteries and veins
Pregunta 12
Pregunta
collections of cortical tissues between medullary pyramids are called
Respuesta
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interlobular cortex
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renal columns of bertin
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medullary rays
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non of the above
Pregunta 13
Pregunta
DCT of the kidney
Respuesta
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has well developed brush border
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lacks a basement membrane
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is composed of simple cubical epithelium
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has numerous rough ER assosciated with basal membrane invagination
Pregunta 14
Pregunta
all about DCT are true except
Respuesta
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about 14 mm
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30-40 um in diameter
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formed of straight , convoluted and macula densa portions
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rich in mitochondria oriented longitudinally
Pregunta 15
Pregunta
facet cells
Respuesta
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are superficial cells of transitional epithelium
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cuboidal cells may be binucleated
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act as osmotic barrier between urine and tissue fluid
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all of the above
Pregunta 16
Pregunta
all of the following makes the juxtaglomerular apparatus except
Respuesta
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podocytes
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juxtaglimerular cells
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macula densa
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lacis cells
Pregunta 17
Pregunta
projection of medulla in the renal cortex
Respuesta
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medulla
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lobe
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renal columns
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medullary rays
Pregunta 18
Pregunta
kidney secretes all except
Respuesta
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renin
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medullipin
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erythropoietin
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rennin
Pregunta 19
Pregunta
nephron cosists of all except
Respuesta
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malpighian corpuscle
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thick limb of loop of henle
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thin limb of loop of henle
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collecting tubules
Pregunta 20
Pregunta
the membranous urethra is lined with
Respuesta
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stratified squamous epithelium
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stratified columnar epithelium
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transitional epithelium
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pseudo-stratified columnar ciliated epithelium
Pregunta 21
Pregunta
the serous sac which covers the anterior and lateral surfaces of the testis is called :
Respuesta
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tunica vaginalis
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tunica vasculosa
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tunica propria
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tuunica albuginea
Pregunta 22
Pregunta
which of the following cells can alter the diameter of seminferous tubules :
Respuesta
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sertoli
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myoid
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spermatid
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spermatogonia
Pregunta 23
Pregunta
type B spermatogonia originates from :
Respuesta
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pale type A spermatogonia
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dark type A spermatogonia
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primary spermatocytes
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spermatids
Pregunta 24
Pregunta
the interstitial cells of leydig contain all the following EXCEPT :
Respuesta
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basophilic cytoplasm
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mitochondria with tubular cristea
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well developed SER
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numerous lipid droplets
Pregunta 25
Pregunta
primary spermatocytes are charichterized by all the following except :
Respuesta
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contains 64 D-chromosomes + 2N DNA
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appear at puberty
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the largest spermatogenic cells
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originate from type B spermatogonia
Pregunta 26
Pregunta
crystals of rienke are present in the :
Respuesta
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spermatids
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myoid cells
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sertoli cells
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leydig cells
Pregunta 27
Pregunta
these intratesticular ducts arise from the rete testis :
Respuesta
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tubuli recti
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vas deferens
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ductuli efferentes
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seminferous tubules
Pregunta 28
Pregunta
the prostatic urethra is lined with :
Respuesta
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st. squamous epithelium
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transitional epithelium
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st. columnar epithelium
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pseudostratified columner epithelium
Pregunta 29
Pregunta
the skin of the penis is charicterized by all of the following except :
Respuesta
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pigmented
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has no subcutaneous fat
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thick skin
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highly sensitive
Pregunta 30
Pregunta
the middle piece of spermatozoa is rich in :
Respuesta
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ribosomes
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smooth endoplasmic reticulum
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lysosomes
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mitochondria
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