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Quiz 167
Mdcat-past-papers Quiz
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3321. Negative feedback mechanism is the characteristic of which class?
Class Fish
Class Amphibia
Class Reptilia
Class Mammalia
3322. Which body function is controlled through positive feed-back mechanism?
Labor contractions
Body temperature
Insulin production
Thyroxin release
3323. The hormone that triggers the release of milk in lactating women is:
Growth hormone
Anti diuretic hormone
oxytocin
FSH
3324. Endorphins are produced in:
Brain
Adrenal glands
Thymus
Stomach
3325. Which of the following is an example of negative feedback mechanism?
Aggregation of platelets during wound healing
Labour contraction
Glucose production
Temperature changes
3326. What is the location of interstitial cells in testes?
Inside the seminiferous tubules
B/w the seminiferous tubules
Among the germinal epithelial cells
Around the testes
3327. A type of cells in human testes which produce testosterone are called:
Germ cells
Sertoli Cells
Interstitial cells
Spermatocytes
3328. In Human testis, which structure is responsible for carrying sperm from inside the testis outside?
Seminiferous tubules
Urogenital Duct
Seminal vesicle
Vasa efferentia
3329. Process ensuring the survival of species over long periods of time, even through individual members of the species die:
Reproduction
Adaptability
Mitosis
Respiration
3330. During spermatogenesis, the --- which are haploid cells eventually mature into spermatozoa/mature sperms
Secondary spermatocytes
Spermatogonia
Spermatocytes
Spermatids
3331. Each human testis is divided into:
50-100 lobules
150-200 lobules
200-300 lobules
250-300 lobules
3332. Which cells in human males are responsible for the release of testosterone?
Pituitary gland
Hypothalamus
Sertoli cells
Leydig cells or interstitial cells
3333. Fluid secreted by sertoli cells provides liquid medium, protection and nourishment to:
Oocyte
Sperms
Spermatogonia
Polar body
3334. Main function of the epididymis is to:
Transport sperms
Produce semen
Connect Urethra
Hold the process of spermatogenesis
3335. Immediate next stage of spermatogonia is:
Secondary spermatocytes
Spermatids
Primary spermatocytes
Sperms
3336. Testes developed inside the abdomen. In which of the following structure do they lie before pintly:
Sac
Scrotum
Pouch
Vesicle
3337. The best temperature for spermatogenesis
37°C
30°C
32°C
35°C
3338. Leydig cells in testes are responsible for
Testosterone production
FSH production
Sperm production
Testosterone inhibition
3339. In human males, inhibin hormone is produce by
leydig cells
Hensen's node cells
Sertoli cells
Interstitial cells
3340. Immediate next stage of spermatogonia is:
Secondary spermatocytes
Spermatids
Primary spermatocytes
Sperms
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