Thermoregulation Quiz

During a science fair, Penny and Elijah are presenting a project on human physiology. They explain the optimal temperature at which human body enzymes work most effectively. What temperature do they mention?

• 30°C

• 42°C

• 25°C

• 37°C

During a science fair, Carissa explains that the human body's temperature is regulated by a specific part of the brain. Where is this thermoregulatory centre located?

• In the liver

• In the heart

• In the hypothalamus

• In the lungs

During a summer picnic, Oliver notices he starts to sweat after playing soccer under the sun. What is happening to his body temperature?

• Vasoconstriction

• Shivering

• Sweating stops

• Vasodilation

During a chilly winter day, why do Natalie and Andy notice their skin having 'goosebumps'?

• Their hair erector muscles relax

• Their hair erector muscles contract

• Their hair erector muscles dilate

• Their hair erector muscles produce sweat

After running on a hot summer day, Oliver notices his body is covered in sweat. What process is helping Oliver's body cool down?

• Shivering

• Increased respiration

• Sweating

• Vasoconstriction

During a summer camp, Oliver and Alayna were curious to know where in the skin they feel the warmth of the campfire. Can you help them understand where temperature receptors are located?

• In the hair follicles

• In the epidermal layer

• In the hypodermis

• In the dermal layer

During a winter camping trip, Jayden notices he starts shivering when the temperature drops. What mechanism is his body using to increase heat release?

• Sweating

• Hair relaxation

• Vasodilation

• Skeletal muscle contraction

During a summer camp hike, Natalie notices that despite the hot weather, she doesn't feel overheated. What is the main function of the body's thermoregulation that explains this?

• To maintain a constant internal environment

• To produce sweat

• To increase body temperature

• To decrease body temperature

During a hot summer day, Ned notices his body starts to sweat to cool down. What is this an example of in the human body?

• Thermoregulation

• Digestion

• Muscle growth

• Bone density increase

During a hot summer day, when Natalie steps outside, what happens to the blood vessels in her skin during vasodilation?

• They stop blood flow

• They shrink

• They relax and widen

• They contract