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CSS :: Integumentary System


51.  Milky secretion of which of the following glands is responsible forcharacteristic smell of rabbits:
A. Mammary glands B. Inguinal glands
C. Zeis glands D. Meibomian glands

52.  Several pairs in two ventrolateral rows the mammary glands are found in:
A. Cow, sheep, goat B. Dogs, cat, pig
C. Rodents D. None of these

53.  Had the dead keratinized cells of our skin been living ones, most important disadvantage would have been:
A. Stopping of perspiration B. Growth of bacteria upon skin
C. Entrance of bacteria into body through skin D. Stopping of hair growth upon skin

54.  A frog is transferred from 20?C to 30?C, its body temperature:
A. Rises to 25?C B. Rises to 30?C
C. Falls to 15?C D. Remains unchanged

55.  A homoiothermal animal is one in which:
A. Body temperature changes with that of environment B. Body temperature remains constant under all environmental conditions
C. Body temperature first changes according to environmental temperature but soon returns to normal constant level D. Body temperature remains at constant level for some time but ultimately changes according to environmental temperature

56.  When a bird is transferred from 30?C to 10?C, its body temperature:
A. Is maintained at original level due to increased dissipation of heat B. Is maintained at original constant level due to increased conservation and production of heat
C. Rises above normal level due to increased production and conservation of heat D. Declines due to increased dissipation of heat

57.  One of the mechanisms for increasing heat production and conservation in mammals involves:
A. Decreased flow of blood into skin to increase heat transfer to it B. Decreased flow of blood into skin to decrease heat transfer to it
C. Decreased flow of blood into skin to increase heat transfer from it D. Increased flow of blood into skin to decrease heat transfer from it

58.  Which of the following features of human skin tends to prevent evaporation of water from it:
A. Presence of sweat glands and their secretion B. Dry, dead cells of stratum corneum
C. Subcutaneous fat D. Presence of melanin

59.  Milk glands are characteristics feature of:
A. All vertebrates B. All mammals
C. Placental mammals D. Man and domestic animals

60.  Capacity of mammals to raise their hairs erect by muscles attached to hair follicles is primarily concerned with:
A. Fighting enemies B. Faster evaporation of sweat
C. Greater insulation for preservation of body heat D. Greater perception of contact stimuli




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