Author Question: Define vasoconstriction and describe its role in the human physiological response to cold. What ... (Read 89 times)

nautica902

  • Hero Member
  • *****
  • Posts: 591
Define vasoconstriction and describe its role in the human physiological response to cold.
 
  What will be an ideal response?

Question 2

The first circumnavigation of the globe was achieved by which explorer?
 
  a. Marco Polo
 b. Christopher Columbus
  c. Ferdinand Magellan
 d. Francisco Pizarro



mistyjohnson

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

Vasoconstriction is narrowing of the blood vessels to reduce blood flow to the skin. Under extreme
cold, this allows the body to restrict heat loss and conserve energy.

Answer to Question 2

c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

For a complete list of videos, visit our video library