WorksheetsThermoregulation
Total questions: 15
Worksheet time: 15mins
Which of the following happens to his body?
Sweating and vasodilation of blood vessels.
Shivering and vasoconstriction of blood vessels.
Sweating and vasoconstriction of blood vessels.
Shivering and vasodilation of blood vessels.
Which of the following will occur when the surrounding temperature drops below 10 ° C?
R constrict
Q relax
P erect
S become active
Choose the relevant corrective mechanisms when body temperature increases.
Hair lies flat
Hair stands erect
Blood vessel dilates
Blood vessel constricts
More sweats is produced
Choose the relevant corrective mechanisms when body temperature decreases.
Hair lies flat, blood vessel dilates
Hair stands erect, blood vessel constricts
Skeletal muscles move passively
Skeletal muscle move actively - shivering
Decrease sweating
Why does our hair stand erect during cold days?
To increase body metabolism
To trap air which acts as heat insulator
To allow more blood flow near skin surface
To cool down skin when sweat evaporates
When you are hot, your body sweats to cool you down. This means your temperature went above normal and your body sweats to counteract that change to bring you back to normal. What kind of feedback loop would this be?
Negative Feedback Loop
Positive Feedback Loop
Neutral Feedback Loop
Linear Feedback Loop
Which organ in the body produces the most heat?
Brain
Small intestine
Heart
Liver
What is the evaporation of a liquid to cool the body?
Shivering
Sweating
Vasodilation
Vasoconstriction
The region of the brain that monitors temperature is called the _______.
thermothalamus
centigrade
vasoconstrictor
hypothalamus
Homeostasis in the human body is often maintained by a _______.
neutral feedback loop
solar feedback loop
positive feedback loop
negative feedback loop
which human body systems are involved in thermoregulation?
Hypothalamus, circulatory system, and respiratory system.
Digestive system, the heart, and the brain
the endocrine glands
the hypothalamus only
Why maintaining a constant internal temperature necessary?
Which of the following is a primary mechanism for thermoregulation in mammals?
A) Sweating
B) Photosynthesis
C) Fermentation
D) Respiration
What role does the hypothalamus play in thermoregulation?
A) It produces sweat to cool the body.
B) It acts as the body's thermostat, regulating temperature.
C) It increases blood sugar levels.
D) It filters waste from the blood.
In a cold environment, which of the following is a physiological response to maintain body temperature?
A) Vasodilation
B) Increased sweating
C) Shivering
D) Decreased metabolism
