Flashcards in 2nd QUARTER- ANATOMY 2 Exam 3 Deck (83)
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1
The space between the lungs where the heart and great blood vessels is housed.
Mediastinum
2
Referring exclusive to the upper chambers of the human heart
atria
3
A single upper chamber of the human heart
atrium
4
four (4) distinct chambers of the heart
Right Atrium -
Left Atrium -
Right Ventricle -
Left Ventricle-
5
The upper right chamber of the heart
right atrium
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The upper left chamber of the heart
left atrium
7
The lower right chamber of the heart
right ventricle
8
The lower left chamber of the heart
left ventricle
9
the natural opening present between the upper chambers of the fetal heart. Allows the fetal lungs to develop
foramen ovale
10
the oval shaped shallow depression best seen in the right atrium of an adult heart. This is formed where the foramen ovale used to be located.
fossa ovalis
11
two lower chambers of the human heart. They are larger in capacity than the upper chambers
ventricles
12
Two structures only found in the ventricles of the heart:
Papillary muscles -
Chordae tendineae -
13
finger like muscles only found within the ventricles of the heart. Used to regulate or control specific heart valves.
papillary muscles
14
look like little pieces of string called tendious cords. Attach papillary muscles to individual sections (cusps) of the heart valve which they control.
chordae tendineae
15
individual sections of a human heart valve
cusps
16
four major valves in the heart
Tricuspid valve -
Pulmonary (semilunar) valve -
Bicuspid (Mitral) Valve -
Aortic (semilunar) valve -
17
consist of 3 distinct sections or cusps - control the opening between the right atrium and right ventricle. Regulated or controlled by papillary muscles and chordae tendineae which are only found in the right ventricle of the heart.
tricuspid valve
18
consist of 3 distinct sections or cusps. Controls the opening between the right ventricle and the pulmonary trunk.
Relies on backflow of blood to fill up the cusps to prevent it from going back into the chamber.
pulmonary (semilunar) valve
19
the only heart valve that consists of two distinct sections or cusps. Controls the opening between the left atrium and left ventricle. The papillary muscles and chordae tendineae controls this valve and are only located in the left ventricle of the lower chamber of the heart.
bicuspid (mitral) valve
20
consists of three distinct cusps or sections. Controls the opening between the left ventricle and the aorta. Similar to the pulmonary (semilunar) valve, it relies on the backflow of blood to fill up the three cusps of this opening and close the valve.
aortic (semilunar) valve
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Which two heart valves are controlled by papillary muscles and chordae tendineae?
Tricuspid valve
Bicuspid (Mitral) Valve
22
Layers in the walls of the heart (innermost to outermost).
Endocardium – .
Myocardium -
Pericardium – (peri- around)
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the innermost layer of the heart. This is the layer in which the heart valves are made. Makes up the cusps of the heart valve
endocardium
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the muscle layer of the heart. It is thickest in the left ventricle. The last chamber to receive oxygenated blood from the heart to the entire body.
myocardium
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the sack surrounding the heart.
pericardium
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two types of pericardium
visceral pericardium
parietal pericardium
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that part of the pericardium directly attached to the heart
visceral pericardium
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outermost layer of the heart and the layer of the pericardium closest to the body wall.
parietal pericardium
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second largest vein in the human body. It will eventually drain any blood coming from the head, neck, upper extremities, and thoracic region.
superior vena cava
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