Regulation Of Body Temperature Flashcards
the most active tissues which generate the most heat?
- liver.
- heart.
- brain.
- kidney.
- endocrine organs.
Average core body temperature is ?
37
The body’s shell refers to ?
the skin or outer servers
What the temperature that have the lowest temperature ?
Shell temperature
Shell temperature is varies between….
20c and 40c
The body’s core refers to the organs within the :
skull, thoracic and abdominal cavities
Which temperature that highest
temperature in the body?
Core
Rectal temperature is..
0.4
Blood serves as an agent of heat exchange
between the ….
core and shell
Enzymatic activity is accelerated with increased?
core body temperature
Which type of HEAT EXCHANGE
That loss of heat through direct contact
between an object and the body ?
Conduction
Which type of HEAT EXCHANGE that heat travels via infrared waves?
Radiation
Which type of HEAT EXCHANGE that upon sweating, removes heat from the body?
Evaporation
Which type of HEAT EXCHANGE that warmer air rises and cooler and works with conduction?
Convection
water that is lost from the lungs, oral mucosa and skin is example in which type of HEAT EXCHANGE ?
insensible water loss
occurs when there is activation of the sympathetic nervous system and stimulation of eccrine sweat glands during extreme emotional states or vigorous exercise is example of in which type of HEAT EXCHANGE?
Sensible heat loss
Core body temperature
is regulated by a….
negative feedback mechanism
The main integration center for thermoregulation is in the……
hypothalamus
Heat-loss center and Heat-promoting center
Is controlling by?
hypothalamus
is responsible for regulating body
temperature; acts as a thermostat
Pre-optic area of the hypothalamus
Children also have an extra-thin thermo isolative layer of ?.
Brown
a special membrane polypeptide, which allows mitochondria to use nutrients to produce heat rather than ATP> which in Brown fat in the children…..
thermogenin
Increase in secretion of TSH
which leads to increased ?
thyroid hormone secretion and this
increases metabolic rate
What the signs of hypothermia?
decrease in respiratory rate, blood pressure, heart rate.
increased temperature increases metabolic rate which increases?…
heat production
Skin become hot and dry and multiple organ damage (including brain damage) can occur?
heat stroke
Signs and symptoms of hyperthermia?
mental confusion,
fainting,
low blood pressure
The rustle of fever is?
infection somewhere in the body
Example for function circadian rhythm for Controls many physiological factors …
secretion of hormones, sleep-wake cycle, body temperature, etc
