WGU D313 2025-2026 Exam Test Questions
And
Verified Answers
D
O
N
O
T
C
O
PY
Myocardium - ANS-muscular, middle layer of the heart.
Contains cardiac muscle fibers
Where is the base of the heart located? - ANS-At the third
costal cartilage
,Where is the apex of the heart located? - ANS-5th
intercostal space, midclavicular line
Layers of the heart from outer to inner
(Heart only) - ANS-Epicardium
Myocardium
Endocardium
D
O
Layers of the heart from outer to inner (six layers) - ANS-
Fiberous pericardium
N
Parietal layer of serious pericardium
O
Pericardial cavity
T
Epicardium
C
Myocardium
O
Endocardium
PY
function of pericardium - ANS-protects the heart and
retains its position in the mediastinum
Serosal pericardium - ANS-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 - ANS-Reduces
friction as the heart beats
What layer of the heart covers the heart valves? -
ANSendocardium
D
Pericardium - ANS-A thin, fluid filled sac that covers the
outer surface of the heart
O
N
pericardial cavity - ANS-A narrow cavity filled with
O
pericardial fluid
T
Pericardial fluid - ANS-Thin serous fluid found in the
C
pericardial cavity
O
PY
Pathway of blood through the heart - ANS-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 - ANS-small vessels that gather blood from the
capillaries into the veins
D
Blood goes from the inferior and superior vena cava to... -
O
ANS-Right atrium
N
Valve after right atrium - ANS-Tricuspid valve
O
Right AV valve
T
C
Tricuspid valve leads to - ANS-right ventricle
O
PY
What valve does the right ventricle send blood through? -
ANS-Pulmonary valve
Pulmonary vein leads to the - ANS-left atrium
Blood goes from the left atrium through what valve? -
ANS-Mitral valve
And
Verified Answers
D
O
N
O
T
C
O
PY
Myocardium - ANS-muscular, middle layer of the heart.
Contains cardiac muscle fibers
Where is the base of the heart located? - ANS-At the third
costal cartilage
,Where is the apex of the heart located? - ANS-5th
intercostal space, midclavicular line
Layers of the heart from outer to inner
(Heart only) - ANS-Epicardium
Myocardium
Endocardium
D
O
Layers of the heart from outer to inner (six layers) - ANS-
Fiberous pericardium
N
Parietal layer of serious pericardium
O
Pericardial cavity
T
Epicardium
C
Myocardium
O
Endocardium
PY
function of pericardium - ANS-protects the heart and
retains its position in the mediastinum
Serosal pericardium - ANS-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 - ANS-Reduces
friction as the heart beats
What layer of the heart covers the heart valves? -
ANSendocardium
D
Pericardium - ANS-A thin, fluid filled sac that covers the
outer surface of the heart
O
N
pericardial cavity - ANS-A narrow cavity filled with
O
pericardial fluid
T
Pericardial fluid - ANS-Thin serous fluid found in the
C
pericardial cavity
O
PY
Pathway of blood through the heart - ANS-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 - ANS-small vessels that gather blood from the
capillaries into the veins
D
Blood goes from the inferior and superior vena cava to... -
O
ANS-Right atrium
N
Valve after right atrium - ANS-Tricuspid valve
O
Right AV valve
T
C
Tricuspid valve leads to - ANS-right ventricle
O
PY
What valve does the right ventricle send blood through? -
ANS-Pulmonary valve
Pulmonary vein leads to the - ANS-left atrium
Blood goes from the left atrium through what valve? -
ANS-Mitral valve
