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BIO 140 Human Biology I - Questions and Solutions

Circulatory Pathways - Solutions

Review Questions

1. The coronary arteries branch off of the ________.

  1. aortic valve
  2. ascending aorta
  3. aortic arch
  4. thoracic aorta

2. Which of the following statements is true?

  1. The left and right common carotid arteries both branch off of the brachiocephalic trunk.
  2. The brachial artery is the distal branch of the axillary artery.
  3. The radial and ulnar arteries join to form the palmar arch.
  4. All of the above are true.

3. Arteries serving the stomach, pancreas, and liver all branch from the ________.

  1. superior mesenteric artery
  2. inferior mesenteric artery
  3. celiac trunk
  4. splenic artery

5. The right and left brachiocephalic veins ________.

  1. drain blood from the right and left internal jugular veins
  2. drain blood from the right and left subclavian veins
  3. drain into the superior vena cava
  4. all of the above are true

6. The hepatic portal system delivers blood from the digestive organs to the ________.

  1. liver
  2. hypothalamus
  3. spleen
  4. left atrium

 

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Critical Thinking Questions

1. Identify the ventricle of the heart that pumps oxygen-depleted blood and the arteries of the body that carry oxygen-depleted blood.

Solution: The right ventricle of the heart pumps oxygen-depleted blood to the pulmonary arteries.

2. What organs do the gonadal veins drain?

Solution: The gonadal veins drain the testes in males and the ovaries in females.

3. What arteries play the leading roles in supplying blood to the brain?

Solution: The internal carotid arteries and the vertebral arteries provide most of the brain’s blood supply.

 

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OpenStax, Circulatory Pathways. OpenStax CNX. Jun 19, 2013 http://cnx.org/contents/1aa6075b-8678-43f0-891d-cff6252fb2eb@3. © Jun 19, 2013 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License 3.0 license.