Term
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Definition
-Heart
-Roots of great vessels:
a. Superior Vena Cava (SVC)
b. Aorta
c. Pulmonary Trunk |
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Term
| Pericardium's arterial supply |
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Definition
-Inferior Thoracic Branch:
a. *Pericardiophrenic Artery
b. Musculophrenic A.
-Aorta:
a. Brachial
b. Esophageal
c. Superior Phrenic
-Coronary Arteries |
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Term
| Pericardium's venous drainage |
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Definition
-Perichardiophrenic V.
-Azygos venous system tributaries [VAST- switch V/A] |
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Term
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Definition
-Phrenic N. -Vagus N. (via cardiac plexus)- aka CN X -Sympathetic trunks [remember, parasympathetic system has long preganglionic axons, while the sympathetic preganglionic chain is pre and para-vertebral- right near/on the heart]
PhENIs and VAGinaS |
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Term
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Definition
-Fibrous pericondrium, fused with the:
-Parietal layer of the serous pericardium
-Pericardial cavity (with serous/pericardial fluid)
-Visceral layer of serous pericardium (aka epicardium) |
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Term
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Definition
-Inflammation of pericardium due to infection
-Causes chest pain
-"Pericardial friction rub"- sounds like rustle of silk |
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Term
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Definition
-Due to pericarditis
-Excess fluid/pus build up from percardial capillaries into pericardial cavity
-May lead to Cardiac Tamponade |
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Term
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Definition
Due to pericardial effusion due to pericarditis
-Build up of fluid compresses heart
-Heart cannot expand fully
Symptoms: Beck's Triad
1. Hypotension (increased heart compression-->decreased stroke volume-->decreased cardiac output)
2. Jugular-vein distension (build up of fluid)
3. Muffled heart sounds (uh, theres fluid in the way..duh) |
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Term
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Definition
Withdraw fluid from pericardial sac
-Location: LEFT middle of 5th or 6th intercostal space near sternum (aka infrasternal angle) |
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Term
| Atria of heart separated by the |
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Definition
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Term
| Ventricles of heart separated by |
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Definition
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Term
| Atria and ventricles separated by |
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Definition
Atrio-ventricular orifice
-Contains tricuspid and mitral valves |
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Term
| Right Atrium receives venous blood from |
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Definition
1. SVC
2. IVC
3. Coronary sinus
4. Anterior cardiac veins |
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Term
| Right Atrium- internal aspect |
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Definition
-Sinus venarum (smooth)
-Pectinate muscle (rough)
-Crista terminalis-separates smooth and rough
a. Externally=sulcus terminalis
-Foramen ovalis
-Auricle |
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Term
| Adult/Embryologic Structures of Right Atrium |
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Definition
Foramen ovalis - foramen ovale
Sinus venarum - sinus venosus
Pectinate muscle (trebeculated pt) - primitive atrium |
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Term
| Left Atrium receives venous blood from |
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Definition
4 pulmonary veins (oxygenated blood)
-2 superior
-2 inferior |
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Term
| Left Atrium- internal aspect compared to R. Atrium |
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Definition
-Larger smooth wall portion
-Smaller muscular portion |
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Term
| Left Atrium- internal aspect |
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Definition
-Auricle (contains pectinate muscle)
- Semilunar depression (floor of fossa ovalis)
a. Valve of oval fossa- surrounding ridge of semilunar depression |
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Term
| Right Ventricle- internal aspect |
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Definition
- Trabecullae Carneae (rough)
a. Septomarginal trebuculae (moderator band)- contains right branch of AV bundle
-Conus arteriosus/infindibulum (smooth)
a. Leads to pulmonary valve-->pulmonary trunk |
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Term
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Definition
Tricuspid valve:
-Chordae tendineae [parachute-like strings]
a. Prevents regurgitation
-Papillary muscles
a. Anterior
b. Posterior
c. *Septal |
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Term
| Right Ventricle Adult/Embryological Origin |
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Definition
Conus arteriosus - bulbus cordis
Trabeculated pts (T. carneae) - primitive ventricle |
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Term
| Left Ventricle- internal aspect |
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Definition
-Trebeculae carneae (rough)
-Aortic vestibule (smooth)
a. Leads to aortic valve-->aorta
-Bicuspid/Mitral valve
a. Chordae Tendineae
b. Papillary muscles- anterior and posterior
c. Prevents regurgitation
-Thicker wall
-Contain coronary arteries- blood for myocardium itself |
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Term
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Definition
[ABC's]
A-Aorta
B- Brachiocephalic trunk
C- Left Common Carotid A.
S- Left Subclavian A.
Ascending aorta--> arch of aorta-->descending aorta
Brachiocephalic--> R. Subclavian A. + R. Common Carotid A. |
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Term
Conduction System- location of SA node |
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Definition
| Junction of SVC and Right Atrium |
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Term
| Conduction System- location of Bachmann's Bundle |
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Definition
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Term
| Conduction System- location of AV node |
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Definition
| Interarterial septum- posteriorly inferior (back and low) |
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Term
| Conduction System- location of Bundle of His |
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Definition
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Term
Conduction System- location of bundle branches |
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Definition
Muscular interventricular septum, R/L respective ventricular walls,
Right bundle branch also: septomarginal traberculeae (moderator band) |
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Term
| Conduction System- location of Pukinje fibers |
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Definition
Right: IVS, wall of ventricle, ant. papillary muscle
Left:IVS, wall of ventricle, ant. and post. p. m. |
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Term
| Apex and base of the heart |
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Definition
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