Save
XYC002 : Body Systems
Topic 9: Cardiovascular System 2
Save
Share
Learn
Content
Leaderboard
Share
Learn
Created by
Shantell Okekumata
Visit profile
Cards (84)
What is the location of the heart?
In the
thoracic mediastinum
View source
What forms the apex of the heart?
Tip of the
left ventricle
View source
What is the base of the heart?
Opposite the
apex
View source
What surrounds and protects the heart?
The
pericardium
View source
What are the two parts of the pericardium?
Fibrous
pericardium and
serous
pericardium
View source
What is the outer layer of the pericardium made of?
Tough, inelastic
connective tissue
View source
What does the serous pericardium consist of?
A
double layer
membrane
View source
What is the acronym to remember the layers of the pericardium?
Fart Police Smell Villains
View source
What are the three layers of the heart wall?
Epicardium
,
myocardium
,
endocardium
View source
What is the composition of the epicardium?
Mesothelium
and connective tissue
View source
What constitutes the bulk of the heart?
Myocardium
View source
What lines the inside of the myocardium?
Endocardium
View source
What type of muscle tissue is myocardium?
Cardiac muscle tissue
View source
How are cardiac muscle fibers arranged?
In
interlacing bundles
View source
What connects cardiac muscle fibers?
Intercalated discs
View source
What do gap junctions allow in cardiac muscle fibers?
Action potentials
to conduct between fibers
View source
How many networks do cardiac muscle fibers form?
Two
networks:
atrial
and
ventricular
View source
Why is the myocardium in the left ventricle thicker?
To generate greater pressure for
systemic circuit
View source
How many chambers does the heart have?
Four
chambers
View source
What are the two upper chambers of the heart called?
Atria
View source
What are the two lower chambers of the heart called?
Ventricles
View source
What separates the right and left atrium?
Interatrial septum
View source
What is the fossa ovalis?
An oval depression in the
interatrial septum
View source
What closes soon after birth?
The
foramen ovale
View source
What separates the right ventricle from the left ventricle?
Interventricular septum
View source
What does the right atrium receive?
Deoxygenated
blood
View source
Through which veins does the right atrium receive blood?
Superior vena cava
,
inferior vena cava
,
coronary sinus
View source
What does the right ventricle do with deoxygenated blood?
Pumps it into the
pulmonary trunk
View source
What do the pulmonary arteries do?
Carry blood to the
lungs
View source
Where does oxygenated blood enter the heart?
Left atrium
View source
How many pulmonary veins deliver blood to the left atrium?
Four
pulmonary veins
View source
What does the left ventricle do with oxygenated blood?
Pumps it into the
ascending aorta
View source
Where does oxygenated blood go from the ascending aorta?
To all parts of the
body
View source
What prevents blood from flowing backward in the heart?
Four
valves
View source
What are the atrioventricular (AV) valves?
Valves between the
atria
and
ventricles
View source
What is the tricuspid valve?
AV valve
between
right atrium
and
ventricle
View source
What connects the tricuspid valve to the papillary muscles?
Chordae tendinae
View source
What is the bicuspid valve also known as?
Mitral valve
View source
What must happen for blood to pass from an atrium to a ventricle?
An
AV valve
must open
View source
What are the semilunar valves?
Valves near the
pulmonary trunk
and
aorta
View source
See all 84 cards