Upgrade to remove ads
Terms in this set (68)
Carries blood to and from the gas exchange surfaces of the lungs
Transports blood to and from the rest of the body
Carry blood away from the heart
Return blood to the heart
Small, thin-walled vessels between the smallest veins
receives blood from the systemic circuit and passes it to the right ventricle
Pumps blood into the pulmonary circuit
Collects blood from the pulmonary circuit and empties it into the left ventricle
Pumps blood into the systemic circuit
The heart is surrounded by the _________________ cavity.
The lining of the pericardial cavity is a serous membrane called the __________________________
The pericardium can be subdivided into the
visceral pericardium and the parietal pericardium
Visceral pericardium is also called the _________________
The epicardium covers the _____________
outer surface of the heart
the parietal pericardium lines the ___________________
inner surface of the pericardial sac
Outer portion of the atrium deflates into a lumpy, wrinkled flap called _____________
The ________________ is a deep groove usually filled with substantial amounts of fat
The __________________ marks the boarder between the atria and the ventricles
The ____________________ and _______________________ mark the boundary between the left and right ventricles
Anterior interventricular sulcus; posterior interventricular sulcus
The inferior, pointed top of the heart is the _____________
The wall of the heart contains three distinct layers: an outer ________________, a middle __________________, and an inner ___________________.
epicardium; myocardium; endocardium
The _____________ consists of an exposed epithelium and underlying layer of areolar tissue that is attached to the myocardium
The ________________ contains cardiac muscle tissue, blood vessels and nerves
_____________cells are smaller than skeletal muscle fibers and contain a single centrally located nucleus.
Each cardiac muscle cell is in contact with several others at specialized sites known as
At an intercalated disc, the interlocking membranes of adjacent cells are held together by ________________ and linked by ______________ __________________
desmosomes; gap junctions
______________________ ________________________ forms the cardiac skeleton of the heart
Two atrias are separated by the __________________ __________________
Two ventricles are divided by the ______________________ _________________
Each atrium opens into the ventricle on the same side through an _____________________ __________________________
The _____________________________ ___________________________ ___________________________ delivers blood from the head, neck, upper limbs and chest
Superior vena cava
The _____________________________ ___________________________ ___________________________ carries blood from the rest of the trunk, the viscera, and the lower limbs
Inferior vena cava
The cardiac veins of the heart return venous blood to the ________________ ________________
___________________ _____________________ opens into the right atrium
Cusps that are part of the right atrioventricular valve are known as
Each cusp is braced by connective tissue fibers called
The connective tissue fibers are connected to ___________ muscles
_______________ muscles are cone-shaped projections on the inner surface of the ventricle
Blood leaving the right ventricle int the ________________ _______________
__________________ trunk is the start of the pulmonary circuit
The pulmonary ________________ guards the entrance to this pulmonary trunk
Within the pulmonary trunk, blood flows into the ________________ and __________________ pulmonary arteries
From respiratory capillaries, oxygenated blood moves into the left and right _________________ ___________________
The left and right pulmonary veins deliver blood into the left __________________
The left atrium has an external auricle and a valve called the ________________ ___________________________ ____________________________
left atrioventricular valve
The left atrioventricular valve is also called the
The atrioventricular valve is also called the _____________________ valve
Blood leaving the left ventricle passes through the _________________ valve
What is the start of the systemic ciruit?
What is the function of either atrium?
To collect blood returning to the heart and deliver that blood to the attached ventricle.
The atrioventricular valves prevent the backflow of?
blood from the ventricles into the atria
When the ventricles are relaxed the chordae tendineae are _________
Saclike expansions of the base of the ascending aorta occur next to each cusp of the aortic semilunar valve. These sacs are called?
The ___________________ _______________________ of the heart consists of dense bands of tough, elastic connective tissue that encircle the bases of the large blood vessels carrying blood away from the heart
The _________________ ___________________ supplies blood to the muscle tissue of the heart
The left and right ___________________ ______________________ originate at the base pf the aorta at the aortic sinuses.
Small tributaries from the branches of the left and right coronary arteries from interconnections called __________________.
What makes up the conducting system of the heart?
SA node, AV node, AV bundle, Bundle branches, purkinje fibers
Depilarization of the atria
Depolarization of the ventricles
Repolarization of the ventricles
First heart sound ("lubb")
AV valves close
Second heart sound ("dupp")
Semilunar valves close
Amount ejected by a ventricle during a single beat is the ________________ ______________________
the amount of blood pumped by the left ventricle in 1 minute
The basic heart rate is established by
YOU MIGHT ALSO LIKE...
Ch. 13 Heart
OTHER SETS BY THIS CREATOR
CPO EXAM 3
CPO EXAM 2
Study Guide CH01-CH03
POLS EXAM 4