SCI 220 Week 10 Quiz | Full Questions and Answers | 2026 Update | 100% Correct - Nightingale College.

SCI 220 Week 10 Quiz | Full Questions and Answers | 2026 Update | 100%
Correct - Nightingale College.

Question 1

The four structures that compose the conduction system of the heart are the:

 A. SA node, AV node, AV bundle, and Purkinje fibers. ✅
 B. SA node, AV node, AV bundle, and chordae tendineae.
 C. AV node, AV bundle, Purkinje fibers, and chordae tendineae.
 D. SA node, AV node, AV bundle, and papillary muscles.

Answer: A. SA node, AV node, AV bundle, and Purkinje fibers.



Question 2

Which division of the autonomic nervous system sends fibers to the heart?

 A. Sympathetic
 B. Parasympathetic
 C. Somatic
 D. Both A and B ✅

Answer: D. Both A and B



Question 3

In _____, blood moves from veins to other veins or arteries to other arteries without
passing through an intervening capillary network.

 A. Vascular anastomoses ✅
 B. Coronary arteries
 C. Venous sinuses
 D. Venous valves

Answer: A. Vascular anastomoses



Question 4

, Which of the following is not a formed element found in the blood?

 A. Red blood cell
 B. White blood cell
 C. Plasma ✅
 D. Platelet

Answer: C. Plasma



Question 5

The _____ is(are) supplied with blood from the left subclavian artery.

 A. Spinal cord and brain
 B. Fingers
 C. Head and upper extremities ✅
 D. Lower torso

Answer: C. Head and upper extremities



Question 6

_____ is used to determine the volume percentage of red blood cells in whole blood.

 A. Spectrin
 B. Hematocrit ✅
 C. Hematopoiesis
 D. Hemocytometer

Answer: B. Hematocrit



Question 7

The type of membranous tissue that lines the heart and blood vessels is the:

 A. Endocardium
 B. Endothelium ✅
 C. Serous pericardium
 D. Fibrous pericardium