NIC Cosmetology Written (Theory) ExamScientific ConceptsEasy
A cosmetologist is explaining the importance of proper blood circulation to a client during a facial massage. Which type of blood vessels are responsible for carrying oxygenated blood away from the heart to the rest of the body?
- ACapillaries
- BArteries
- CVenules
- DVeins
Show answer & explanationAnswer & explanation
Correct answer: B. Arteries
Arteries are large blood vessels that carry oxygen-rich blood away from the heart to all parts of the body. They have thick, muscular walls to withstand the high pressure of blood being pumped.
Why the other options are wrong
- A. Capillaries are tiny vessels that facilitate the exchange of oxygen, nutrients, and waste between blood and tissues.
- C. Venules are small veins that collect blood from capillaries and merge to form larger veins.
- D. Veins carry deoxygenated blood back to the heart.
Arteries
Blood vessels that transport oxygenated blood away from the heart to the body's tissues.
- Have thick, muscular walls to handle high pressure.
- Branch into smaller arterioles.
- Essential for delivering oxygen and nutrients throughout the body.
Memory trick: Arteries 'Away' from the heart, Veins 'to' the heart.