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Chapter 20 The Circulatory System Blood Vessels and Circulation $8.49   Add to cart

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Chapter 20 The Circulatory System Blood Vessels and Circulation

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Chapter 20 The Circulatory System Blood Vessels and Circulation

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  • October 31, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
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Chapter 20 The Circulatory System Blood Vessels and Circulation

1. The walls of arteries and veins are composed of: (A) Collagenous fibers

(B) Elastic fibers

(C) Both a & b

(D) None of them

Ans C Diff Easy Page 890

2. The pressure withstand by veins are much lower than arteries of the blood that flows from them

(A)True

(B)False

Ans A Diff Medium Page 890

3. Pick the incorrect statement for tunica intima: (A)The thickest layer in arteries

(B) Smooth muscle cell and elastic fiber dominates

(C) External elastic membrane present in large vessels (D)Internal elastic membrane present in large vessels

Ans D Diff Hard Page 891

4. Vasoconstriction decreases blood flow as:

(A)Smooth muscle in the wall of tunica media contracts

(B)Smooth muscle in the wall of tunica media relaxes

(C)Smooth muscle is not related to vasoconstriction for the increase or decrease of blood flow

, (D)None of them

Ans A Diff Hard Page 892

5. Artery conducts blood in direction: (A) Towards the heart

(B) Away from the heart

(C) Both A & B (D)None of them




Ans B Diff Easy Page 892

6. The diameter of muscular artery typically ranges from: (A) 1-10mm

(B) 2-10mm (C) 0.1-10mm (D) 0.1-10nm

Ans C Diff Hard Page 893

7. A channel that supplies blood to tissues: (A) Artery

(B) Arterioles

(C) Veins

(D) Capillary

Ans D Diff Medium Page 893

8. Which of the following can't pass between the cells

(A) Glucose

(B) RBC

(C) Leukocytes

(D) Gases

Ans B Diff Medium Page 894

9. The capillary having pores in addition to tight junctions in the endothelial lining

(A) Fenestrated capillary

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