Blood and Circulation: Chapter 6

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Questions and Answers

Which type of blood vessel carries blood away from the heart?

  • Venules
  • Capillaries
  • Arteries (correct)
  • Veins

Capillaries have thick walls to withstand high pressure from the heart.

False (B)

What is the primary function of the heart in the circulatory system?

Pumping blood

The circulatory system transports substances that cells need, such as glucose, hormones, and ______.

<p>antibodies</p> Signup and view all the answers

Match the blood vessel type with its structural characteristic:

<p>Artery = Thick muscular walls Capillary = Single सेल thick Vein = Thin walls</p> Signup and view all the answers

Which blood vessel type facilitates the exchange of materials with body tissues?

<p>Capillaries (C)</p> Signup and view all the answers

Veins carry oxygenated blood away from the heart.

<p>False (B)</p> Signup and view all the answers

What is transported back to the heart in veins?

<p>Deoxygenated blood</p> Signup and view all the answers

Arteries need to be elastic to ______ high pressure from the heart.

<p>accommodate</p> Signup and view all the answers

Which of the following is transported away from cells by the circulatory system?

<p>Carbon Dioxide (A)</p> Signup and view all the answers

The circulatory system only transports nutrients.

<p>False (B)</p> Signup and view all the answers

What structural characteristic of arteries allows them to accommodate high pressure from the heart?

<p>Thick muscular walls</p> Signup and view all the answers

The circulatory system includes blood vessels like arteries, veins, and .

<p>capillaries</p> Signup and view all the answers

Which sequence correctly traces the flow of oxygenated blood as it leaves the heart?

<p>Heart → Arteries → Capillaries → Veins (D)</p> Signup and view all the answers

The heart is a gland that produces hormones to regulate blood pressure.

<p>False (B)</p> Signup and view all the answers

What is the name of the blood vessels that branch into arterioles and venules?

<p>capillaries</p> Signup and view all the answers

Veins carry blood ______ the heart.

<p>to</p> Signup and view all the answers

Match the substance with its direction of transport in relation to cells:

<p>Oxygen = Transported to cells Carbon Dioxide = Transported away from cells</p> Signup and view all the answers

Why are the walls of arteries thicker compared to veins?

<p>To withstand high pressure from the heart (A)</p> Signup and view all the answers

Capillaries directly connect arteries to veins.

<p>False (B)</p> Signup and view all the answers

Flashcards

Circulatory System

The system responsible for transporting blood throughout the body.

Arteries

Vessels that carry blood away from the heart.

Capillaries

Tiny vessels that branch off arteries and veins and allow for exchange of materials.

Veins

Vessels that carry blood to the heart.

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Blood Transport

Transportation system in the body that provides cells with glucose, hormones, antibodies, and oxygen.

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Heart

A muscular organ responsible for pumping blood throughout the body.

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Artery

Vessel with thick muscular walls that carry blood away from the heart.

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Capillary

Single-celled vessels responsible for the exchange of materials.

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Vein

Blood vessels with thin walls that carry blood to the heart.

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Study Notes

  • Chapter 6 focuses on blood and circulation

Circulatory System

  • Consists of blood vessels; arteries, capillaries, and veins
  • The heart pumps blood, a muscular organ
  • Main function is the transport of what cells need, like glucose, hormones, antibodies and oxygen
  • It excretes what cells need to get rid of, such as urea and carbon dioxide

Blood Vessels

  • Arteries, capillaries, and veins are the three types of blood vessels

Arteries

  • Carry blood away from the heart
  • Thick muscular walls
  • Elastic, to accommodate high pressure from the heart

Capillaries

  • Branches off of arteries and veins for exchange of materials
  • Single cell thick

Veins

  • Carries blood to the heart
  • Thin walls
  • Returns deoxygenated blood to the heart

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