9433778
Descripción
Test por Med Student , actualizado hace más de 1 año
|
|
Creado por Med Student
hace más de 7 años
|
|
Pregunta 1
Pregunta
Thermoreceptors are:
Respuesta
-
activated only by severe cold or severe hot
-
located on the superficial layers of the skin
-
a subtype of nociceptors
-
on dendritic endings of A6 fibres and C fibres
-
all of the above
Pregunta 2
Pregunta
The most significant heat source in the body is:
Respuesta
-
cellular respiration
-
conductive heat loss
-
convective heat loss
-
evaporation
-
shivering
Pregunta 3
Pregunta
A major means for conserving heat is:
Respuesta
-
vasodilatation of coetaneous blood vessels
-
increased metabolic rate
-
vasoconstriction of coetaneous blood vessels
-
enhanced sweating
-
increased convective loss
Pregunta 4
Pregunta
The thermoregulatory center is located in:
Respuesta
-
cortex
-
vascular system
-
septal region
-
amygdale
-
hypothalamus
Pregunta 5
Pregunta
What is the normal body temperature?
Respuesta
-
81.1°C
-
36.9°C
-
98.6°C
-
21.7°C
-
39.5°C
Pregunta 6
Pregunta
At which temperature does the excitation of the thermoreceptors begin to cause pain?
Respuesta
-
at the temperature which causes tissue damage
-
over 45°C
-
at 30°C
-
at 5°C
-
b, and d
Pregunta 7
Pregunta
Heat stroke is characteristically associated with:
Respuesta
-
profuse sweating
-
elevated basal metabolic rate
-
hot dry skin
-
a and b
-
b and c
Pregunta 8
Pregunta
As ambient temperature increases, heat loss increases by:
Respuesta
-
radiation
-
convection
-
conduction
-
evaporation
-
none of the above
Pregunta 9
Pregunta
Which of the following is not a function of skin?
Respuesta
-
respiration
-
excretion
-
sensation
-
thermoregulation
-
protection
Pregunta 10
Pregunta
Following adaptation to a hot climate there is an increase in:
Respuesta
-
basal metabolic rate
-
heat loss by radiation and convection
-
urinary output
-
the ability to lose heat by sweating
-
decreasing arteriovenous shunting of blood to venous plexus near the surface of the skin
Pregunta 11
Pregunta
Heat - loss mechanisms:
Respuesta
-
by radiation and convection increase when the ambient temperature decreases
-
by evaporation; depend on the activity of sweat glands being under sympathetic muscarinic control
-
are controlled by the anterior hypothalamus
-
cause an increase in sympathetic tone to skin blood vessels
-
decrease arteriovenous shunting of blood to venous plexus near the surface of the skin
Pregunta 12
Pregunta
The set-point temperature of the hypothalamus, triggering heat - loss or heat - generating mechanisms is:
Respuesta
-
34° C
-
37° C
-
20° C
-
36.3° C
-
30° C
Pregunta 13
Pregunta
When the temperature of environment is above 34°C, the only heat-loss mechanism is:
Respuesta
-
convection
-
radiation
-
shivering
-
evaporation
-
radiation and convection
Pregunta 14
Pregunta
The set point level for body temperature is situated in:
Respuesta
-
anterior hypothalamus
-
skin
-
spinal cord
-
posterior hypothalamus
-
brown mast tissue
Pregunta 15
Pregunta
The most potent mechanism for increasing heat production is:
Respuesta
-
activation of the parasympathetic nervous system
-
thyroid hormone increasing the metabolic rate
-
shivering
-
radiation
-
decrease in sympathetic tone to skin blood vessels
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.