WGU D313 EXAM SCRIPT TEST BANK FULL
SOLUTION 2026 VIEW AHEAD EXAM.
⫸ Where is the base of the heart located? Answer: At the third costal
cartilage
⫸ Where is the apex of the heart located? Answer: 5th intercostal
space, midclavicular line
⫸ Layers of the heart from outer to inner
(Heart only) Answer: Epicardium
Myocardium
Endocardium
⫸ Layers of the heart from outer to inner (six layers) Answer:
Fiberous pericardium
Parietal layer of serious pericardium
Pericardial cavity
Epicardium
Myocardium
Endocardium
,⫸ function of pericardium Answer: protects the heart and retains its
position in the mediastinum
⫸ Serosal pericardium Answer: Closed sac composed of two thin
layers (visceral and parietal) with a narrow cavity (pericardial cavity)
between them filled with pericardial fluid.
⫸ Function of the serosal pericardium Answer: Reduces friction as
the heart beats
⫸ What layer of the heart covers the heart valves? Answer:
endocardium
⫸ Pericardium Answer: A thin, fluid filled sac that covers the outer
surface of the heart
⫸ pericardial cavity Answer: A narrow cavity filled with pericardial
fluid
⫸ Pericardial fluid Answer: Thin serous fluid found in the pericardial
cavity
⫸ Pathway of blood through the heart Answer: Right atrium,
tricuspid valve,
right ventricle,
pulmonary semilunar valve,
,pulmonary trunk,
pulmonary arteries,
lungs,
pulmonary veins,
left atrium,
bicuspid (mitral) valve,
left ventricle,
aortic semilunar valve
⫸ Venules Answer: small vessels that gather blood from the
capillaries into the veins
⫸ Blood goes from the inferior and superior vena cava to... Answer:
Right atrium
⫸ Valve after right atrium Answer: Tricuspid valve
Right AV valve
⫸ Tricuspid valve leads to Answer: right ventricle
⫸ What valve does the right ventricle send blood through? Answer:
Pulmonary valve
⫸ Pulmonary vein leads to the Answer: left atrium
, ⫸ Blood goes from the left atrium through what valve? Answer:
Mitral valve
Left AV valve
⫸ Mitral valve leads to what chamber Answer: Left ventricle
⫸ Blood exits, the left ventricle through what valve? Answer: Aortic
valve
⫸ Three main types of arteries Answer: 1. Elastic arteries
(conducting arteries)
2. Muscular arteries (distributing arteries)
3. Arterioles (resistance vessels)
⫸ layers of arteries and veins Answer: tunica interna,
tunica media,
tunica externa
⫸ layers of arterioles and venules Answer: Tunica interns,
Tunica media
Tunica externa
⫸ Function of elastic arteries Answer: stretch when blood is forced
out of the heart, and recoil under low pressure
SOLUTION 2026 VIEW AHEAD EXAM.
⫸ Where is the base of the heart located? Answer: At the third costal
cartilage
⫸ Where is the apex of the heart located? Answer: 5th intercostal
space, midclavicular line
⫸ Layers of the heart from outer to inner
(Heart only) Answer: Epicardium
Myocardium
Endocardium
⫸ Layers of the heart from outer to inner (six layers) Answer:
Fiberous pericardium
Parietal layer of serious pericardium
Pericardial cavity
Epicardium
Myocardium
Endocardium
,⫸ function of pericardium Answer: protects the heart and retains its
position in the mediastinum
⫸ Serosal pericardium Answer: Closed sac composed of two thin
layers (visceral and parietal) with a narrow cavity (pericardial cavity)
between them filled with pericardial fluid.
⫸ Function of the serosal pericardium Answer: Reduces friction as
the heart beats
⫸ What layer of the heart covers the heart valves? Answer:
endocardium
⫸ Pericardium Answer: A thin, fluid filled sac that covers the outer
surface of the heart
⫸ pericardial cavity Answer: A narrow cavity filled with pericardial
fluid
⫸ Pericardial fluid Answer: Thin serous fluid found in the pericardial
cavity
⫸ Pathway of blood through the heart Answer: Right atrium,
tricuspid valve,
right ventricle,
pulmonary semilunar valve,
,pulmonary trunk,
pulmonary arteries,
lungs,
pulmonary veins,
left atrium,
bicuspid (mitral) valve,
left ventricle,
aortic semilunar valve
⫸ Venules Answer: small vessels that gather blood from the
capillaries into the veins
⫸ Blood goes from the inferior and superior vena cava to... Answer:
Right atrium
⫸ Valve after right atrium Answer: Tricuspid valve
Right AV valve
⫸ Tricuspid valve leads to Answer: right ventricle
⫸ What valve does the right ventricle send blood through? Answer:
Pulmonary valve
⫸ Pulmonary vein leads to the Answer: left atrium
, ⫸ Blood goes from the left atrium through what valve? Answer:
Mitral valve
Left AV valve
⫸ Mitral valve leads to what chamber Answer: Left ventricle
⫸ Blood exits, the left ventricle through what valve? Answer: Aortic
valve
⫸ Three main types of arteries Answer: 1. Elastic arteries
(conducting arteries)
2. Muscular arteries (distributing arteries)
3. Arterioles (resistance vessels)
⫸ layers of arteries and veins Answer: tunica interna,
tunica media,
tunica externa
⫸ layers of arterioles and venules Answer: Tunica interns,
Tunica media
Tunica externa
⫸ Function of elastic arteries Answer: stretch when blood is forced
out of the heart, and recoil under low pressure
