Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
82 Cards in this Set
- Front
- Back
Two parts of the pericardium
|
1. Fibrous Layer - tough/inelastic
2. Serous Layer- thin membrane that secretes a serous fluid |
|
The outer part of the serous membrane lines the ______
|
inner surface of the fibrous pericardium
|
|
The ______ pericardium is also known as the epicardium and is the ______ layer of the heart wall
|
-visceral layer of the serous pericardium
- outer-most |
|
Space b/w the visceral and parietal layers
|
Pericardial cavity
|
|
Two parts of the pericardial cavity
|
1. oblique pericardial sinus
2. Transverse pericardial sinus |
|
The _____ pericardial sinus is in the shape of an inverted U and is behind the ________ and bounded on the right side by ______ and the left side by _______.
|
oblique
left atrium right pulm. vessels and IVC left pulm. vessels |
|
The transverse pericardial cavity connects _______ and lies posterior to the ________ and ______ and anterior to the ________.
|
-the two sides of the pericardial cavity
-pulm. trunk and -aorta -SVC |
|
Surgeons use the ______ sinus to put a ligature around the pulm. trunk and ascending aorta
|
transverse
|
|
_____ is a condition in which the serous pericardium becomes inflamed which may cause excess fluid to be secreted in the peroneal cavity. This will cause compression of the heart known as _________.
|
-Pericarditis
- Cardiac Tamponade |
|
The Pericardium lies behind the _____, extends superiorly up to the level of the _______, and inferiorly to the _________
|
- sternum
- sternal angle - xiphisternal jt. |
|
_____ of the heart lies to the right of the midline and ______ lies to the left.
|
1/3
2/3 |
|
The ____ pericardium is fused to the _________ of the diaphragm which means the shape and position of heart change with each breath.
|
-fibrous
-central tendon |
|
Pericardiocentesis can be done at the LEFT ______ or ______ intercostal space
|
5th
6th |
|
Two imp. grooves on surface of the heart
|
1. Coronary (atrioventricular)
2. Interventricular |
|
Coronoary grooves runs around the heart and the ______ _______ run through it
|
coronary vessels
|
|
The Interventric. grooves has two parts:
1. The ANTERIOR part separates the ____ and _____ _______ and continues to the _____ surface of heart. The POSTERIOR part separates the _________ and indicates the side of the _______ internally. |
- left and rt. ventricles
- diaphragmatic - two ventricles - interventricular septum |
|
Surface of the heart that faces the ribs is ____ and is composed mainly of _____ _____ and both _____
|
Sternocostal surface
- rt ventricle - atria |
|
Three surfaces of heart:
|
1. SternalCostal
2. Left or Pulmonary 3. Diaphragmatic Surface |
|
________ surface is formed primarily by the left ventricle.
|
Left or Pulmonary
|
|
The diaphragmatic surface rests on the _____ and is formed by the ___ and ____ ______.
|
- diaphragm
- Left and Rt. Ventricles |
|
The _____ of the heart is formed by the left atrium and is the posterior aspect of the heart.
|
APEX
|
|
5 borders of the heart and what they're formed by:
|
1. Rt. border - formed by rt. atrium
2. Inf. border - formed by rt. ventricle 3. Left border - formed by lt. ventricle 4. Sup. Border- Line that comes across the upper margins of the auricles. |
|
Sup vena cava carries blood from the ___, ____, and ____ as well as the ____ _____
|
head, neck, and upper limb
thoracic wall |
|
________ carries venous blood from the heart and empties in to the ____ ____.
|
Coronary sinus
Rt. Atrium |
|
Ridge that separates the smooth and rough wall in rt. atrium
|
Crista Terminalis
|
|
ROUGH walls of atria are characterized by what muscles? The SMOOTH wall of Rt. Atrium receives the _____, _____, and _____
|
Pectinate muscles
- SVC - IVC - Coronary Sinus |
|
_______ valve sperates the rt. atrium and rt. ventricle
|
Tricuspid
|
|
1. Smooth wall part of rt. Ventricle that leads up to the pulmonary trunk
2. Rough Wall part of rt. Ventricle |
1. conus arteriosus (infindibulum)
2. Trabeculae Carnea |
|
Pulm. trunk is guarded by a ____ cusp valve called the _____ valve
|
- 3
- pulmonary valve |
|
There are ____ papillary muscles in the rt. ventricle that attach to their cusps via the _____ ______.
|
3
chordae tendonae |
|
_____ contract during systole and the ______ and ____ valves must be close during systole to prevent backflow.
|
1. Ventricles
2. Bicuspid and Tricuspid |
|
Papillary muscles contract during _____.
|
systole
|
|
________ ________ is a band of tissue found only in the RIGHT ventricle and is also known as the _____ _____.
|
Septomarginal Trabeculae
Moderator Band |
|
The septomarginal trabeculae extends from the lower part of the _____ _____ to the base of the _________.
|
- IV septum
- ant. papillary muscle. |
|
Significance of septomarginal trabeculae:
|
Part of the Special Conducting system of the heart
|
|
Blood flows into rt atrium through the _____ valve and our through the _____ _______ (not a valve)
|
- tricuspid
- conus arteriosum |
|
The ____ ventricle is 2 to 3 X thicker than the ____ ventricle
|
left
right |
|
Smooth walled part of the lt. atrium receives the ______
|
4 pulmonary veins
|
|
The _____ of the lt. atrium is rough walled with ______ muscles
|
auricle
pectinate |
|
The membranous (thin-walled) part of the IV septum is ______ to the ____ cusp of the ______ ______.
|
inferior
right aortic valve |
|
Smooth walled track of blood outflow in the left ventricle is the _______
|
aortic vestibule
|
|
____ is when ventricles fill with blood
_____ is when ventricles contract and expel blood |
diastole
systole |
|
Systole:
____ and ____ valves are closed _____ and ____ valves are open |
Tri and Bicusp.
Pulmonary and Aortic |
|
The center of each cusp in the aortic and pulonary valves
|
nodule
|
|
Thin margin on either side of the nodule in the aortic and pulonary valves:
|
lunule
|
|
Space b/w cusp and valve in the and the wall of a vesel
|
sinus
|
|
During diastole, backflow of blood ejected from heart collects in the _____ and pushes the _____ together, sealing the valve
|
sinuses
cusps |
|
In aorta, blood from the ____ and ____ sinuses will pass into the _____ arteries
|
left and right
coronary |
|
Best places to auscultate:
Aortic Valve Pulmonary Valve Tricuspd Valve Mitral Valve |
AV - 2nd intercostal space just right of sternal border
PV - 2nd intercostal space just left of sternal border TCV - 5th intercostal space near left sternal border MV - near apex of heart at 5th intercostal space just medial to midclavic line |
|
Valves can become inflamed in _______ fever allowing reflux of blood to one chamber creating a _____
|
rheumatic
murmur |
|
Most frequently diseased valve:
|
Mitral
|
|
Rt and Left coronary arteries are the ______ branch off the _______ artery.
|
first
Ascending Aorta |
|
The Left coronary a. is ____. When it reaches the ____ groove it splits into the _____ a. and the ____ a.
|
short
AV Anterior interventricular(LAD) Circumflex |
|
LAD supplies ____ of the IV septum through ____ branches and supplies the __________.
|
- 2/3
- septal - rt. and lt. bundle branches of the conducting system |
|
What happens if blood supply is compromised to conducting system?
|
Arrythmyia
|
|
Bundle branches of conducting system descend on either side of the _____.
|
IV septum
|
|
The Circumflex a. passes around the ____ margin of the heart in the ____ groove to supply the ___ and ____ ____.
|
Left
AV left ventricle and left atrium |
|
The Right Coronary a. runs in the ____ groove.
|
Coronary
|
|
The ______ a. branches of the the right coronary a. to supply the ____ and divides into the _____ a. which supplies the ____.
|
-Anterior right atrial
-Rt. Atrium -SA Nodal a. - SA node |
|
Four branches of the rt. coronary artery:
|
1. Ant. Right Atrial
2. Rt. Marginal 3. Post. IV a. 4. AV Nodal a. |
|
The _____ a branches of the rt. coronary a. and passes along inf. margin of heart
|
rt. marginal a.
|
|
_______ a. branches off the rt. coronary a. just before it terminates and supplies _______.
|
Post. IV a.
1/3 of IV septum |
|
The ____ a. is the last br. of the rt. coronary a. and supplies the _______
|
1. AV Nodal a.
2. AV node |
|
Three sites of anastomosis b/w Right and left coronary arteries:
|
1. Rt. coronary a. w/ circumflex br.
2. Post. IV br. w/ Ant. IV br. 3. B/w Septal branches of post and ant. IV aa's. |
|
6 sites of coronary a. occlusion in order of prevalence:
|
1. Prox. point of LAD
2. Rt. Coronary a. 3. Prox. Circumflex br. 4. Lt. Coronary a. 5. Post. IV br. 6. Distal rt. coronary a. |
|
Vein often used for coronary artery bypass and vein second most utilized
|
1. Great Saphenous
2. Left internal thoracic |
|
_____ vein runs with the LAD a.
_____ vein runs with the post. interventricular a. |
Great cardiac
Middle cardiac |
|
Most veins of heart empty into the ____ ____ except the _____ veins which _____.
|
coronary sinus
ant. cardiac veins empty directly into the rt. atrium from the rt. ventricle. |
|
Conducting system of heart utilizes what fibers?
|
Modified cardiac muscle fibers that conduct impulse.
|
|
The ____ node is located at the upper edge of the cristae terminalis and is known as the _____.
|
SA
pacemaker |
|
The SA node _________
|
initates impulse for contraction ehich spread throughout left and rt. atriomusculature
|
|
AV node location:
|
clump of cells located in the lower part of the intra-atrial septum close to the opening of the coronary sinus
|
|
After travelling through AV node, impulses propagate through the ______
|
AV bundle
|
|
The Av bundle travels along the edge of the _______ portion of the _______.
|
membranous
IV septum |
|
One of most common congenital defects of the heart:
|
Patent Interventricular septum
|
|
When the AV bundle reaches the ________ portion of the ______ it ________.
|
thick-walled
IV septum splits into rt and lt. bundle branches |
|
The _______ bundle branch passes in the _______ band to the ANT PAPILLARY muscle while other bundle branches will _____.
|
right
moderator ramify throughout the myocardium and ventricles |
|
The conducting system of the heart is under the influence of the _________ nervous system.
|
AUTONOMIC
|
|
The ________ supplies nerves to the heart and has two parts:
|
cardiac plexus
1. Superficial Card. Plex. 2. Deep Card. Plex. |
|
Cardiac Plexus consists of what types of fibers?
|
1. Symp
2. Parasymp 3. GVA's |
|
Location of superificial cardiac plexus?
|
-Concavity of aortic arch close to ligamentum arteriosum
-ant. to aortic arch |
|
Deep part of cardiac plexus is located posterior to the _______ and anterior to _______
|
aortic arch
tracheal bifurcation |