Heart and Pericardium Flashcards
Lub sound is caused by?
closure of TV and MV
Dub - closure of AV and PV
The orientation the apex of the heart is?
downward, forward, left at 5th ICS, 9cm from the midline
Remnants of the heart and their adult counterpart (3)
Foramen Ovale = Fossa Ovalis
Ductus arteriosis = Ligamentum arteriosus
Ductus Venosus = ligamentum venosus
The pulmonary valve has two anterior cusps and one posterior cusp. The aortic valve on the other hand has?
one anterior cusp, 2 posterior cusp
True or false The left ventricle has moderator band?
False. The left ventricle has NO moderator band.
The right ventricle has moderator band.
Trace the flow of the blood from the liver
Liver –> IVC –> RA –>TV–> RV –> PV –>LA –>MV –>LV –> AV –> aorta
___ coronary artery arises from the anterior aortic sinus of the ascending aorta
RCA
LCA - from posterior aortic sinus
____ drains blood from the cardiac vein directly the RA
coronary sinus
____ is composed of papillary muscle and moderator band (cite location)
Trabeculae carnae, RV
The pericardium encloses what structures
- Heart
2. Roots of the greatevessels
What is the function of the fibrous pericardium?
It limits unecessary movement of the hear
What ligament attaches the fibrous pericardium to the sternum
Sternopericardial ligament
Normal mL of pericardial fluid
30mL
Where will you insert the needle when you do a pericardiocentesis
Left 5th or 6ths ICS near the sternum
What are the layers pierced by the needle during pericardiocentesis?
- Skin
- Subcutaneous fascia
- Rectus sheath
- Rectus abdominis
- Fibrous layer
- Serous layer
- Parietal pericardium
What is the direction of the heart apex
downward, forward, left
[Surface Anatomy]
the heart apex is located
5th ICS LMCL 9am from midline
The base of the heart is composed largely of what chamber?
LA
The apex of the heart is composed largely of what chamber?
LV
____ external vertical groove that forms
sulcus terminali
____ junction of the sinus venosus and RA proper
crista terminalis
____ posterior to the crista terminalis that is a smooth portion
sinus venarum
what makes the RA rough?
musculi pectini
This heart chamber houses the moderator band
RV
the moderator band in the RV is attached to what walls of the heart
septal and anterior
trabeculae carnae is seen in what heart chamber?
RV
the cusps of the aortic valve are placed where?
1 anteriorly
2 posteriorly
1,2 Aortic
The anterior sinus of the aortic valve gives rise to ____
Right coronary artery
Remember: Left Coronary artery = Likod = Posterior
What valve is attached to the chordae tendinae
Tricuspid
Mitral
The cusps of the tricuspid valve are arranged ___
anterior
septal
inferior
The cusps of the pulmonic valve is arranged:
2 anterior
1 posterior
2,1 pulmonic
[Surface anatomy]
the tricuspid valve can be heart at
lower end of sternum
[Surface anatomy]
the mitral valve is best heard ata
5th ICS LMCL
The pulmonic valve is best heard at?
2nd L ICS
The aortic valve is best heard at
2nd R ICS
Physiologic closing is due to ____
delayed closure of pulmonic valve on inspiration
S3 is normal in ___
children
What arterial branch supplies the apex of the heart
LAD
What artery supplies the left atrium and ventricle?
circumflex branch of the left coronary artery
What artery supplies the interventricular septum?
Anterior interventricular artery of the left coronary
What artery supplies the right ventricle?
- Anterior interventricular artery
2. Marginal branch of right coronary
What artery supplies the right atrium?
right coronary arter
What is the blood supply of the SA?
RCA (60%)
What is the parasympathetic supply of the heart?
vagus nerve
The RCA drains to what LN?
Anterior mediastinal
The LCA drains to when LN?
tracheobronchial node
The AV node is located near ____
coronary sinus
[Placement of ECG leads]
V1 lead
4th ICS, right of sternum
[Placement of ECG leads]
V4
5th ICS LMCL
[Placement of ECG leads]
V5
5th ICS LAAL
[Placement of ECG leads]
V6
5th ICS LMAL
[Coronary Arteries and infarct location with ECG]
I
AVL
V1-V6
Proximal LAD, large anterior wall
[Coronary Arteries and infarct location with ECG]
V2-V4
Anteroapical, Distal LAD
[Coronary Arteries and infarct location with ECG]
II, III, aVF
Inferior wall, distal LAD
[Coronary Arteries and infarct location with ECG]
V1-V3
Anteroseptal, distal LAD
[Coronary Arteries and infarct location with ECG]
V4-V6
Posterolatera, circumflex
The musculi pectini is seen on the __ (anterior/posterior) side of the RA
anterior
The sinus venarum is seen on the __ (anterior/posterior) side of the RA
posterior
What do you call the irregular muscle ridges seen on the internal surface of the right ventricle
trabeculae carna
___ is a modified trabeculae carnae that crosses the interventricular septum
moderator band
What is the most posterior of the 4 heart chambers?
left atrium
[Right/Left ventricle]
Cresenteric cavity
RV
[Right/Left ventricle]
presence of moderator band
RV
[Right/Left ventricle]
circular cavity
LV
[Heart Embryology]
When will the heart tube elongates and bends?
Day 23
[Heart Embryology]
The primitive atrium forms the ____
left atrium
[Heart Embryology]
the sinus venosus gives rise to ____
right atrium
[Heart Embryology]
the bulbus cordis forms the ____
Right ventricle
[Heart Embryology]
the primitive ventricle forms the ____
left ventricle
[Heart Embryology]
the truncus arteriorus gives rise to?
root of the aorta and the pulmonary trunk
What are the components of TOF
- Pulmonary stenosis
- VSD
- Overriding aorta
- RVH
[Fetal Circulation]
Trace the pathway for Oxygenated blood
- Umbilical vein
- Ductus Venosus
- IVC
- RA
- Foramen Ovale
- Left Atrium
- Left Ventricle
- Aorta
[Fetal Circulation]
Trace the pathway for deoxygenated blood
- SVC
- RA
- RV
- Pulmonary trunk
- Ductus arteriosus
- Aorta
[Fetal Circulation]
what shunts become close as soon as the baby is born?
- Foramen ovale
- Ductus arteriosus
- Umbilical vessels
[Adult derivatives of fetal vascular structures]
Ligamentum teres
Umbilical vein
Medial umbilical ligament
UmbilicaL arterues
[Adult derivatives of fetal vascular structures]
Ligamentum venosus
Ductus venosus
[Adult derivatives of fetal vascular structures]
Ligamentum arteriosum
Ductus arteriosus
[Adult derivatives of fetal vascular structures]
median umbilical ligament
remnant of urachus
The closure of the foramen ovale and fossa ovalis occus in ___ month after birth?
3rd
Congenital rubella infection is associated with what anomaly?
PDA
In PDA, the aortic blood is shunted to the?
pulmonary artery
[Aortic Arch derivatives]
The first pair gives rise to
maxillary artery
[Aortic Arch derivatives]
the second pair gives rise to
stapedial arteries
[Aortic Arch derivatives]
The proximal part of the third pair gives rise to
Common Carotid Artery
[Aortic Arch derivatives]
the distal parts of the third pair gives rise to
Internal carotid artery
[Aortic Arch derivatives]
the fifth pair gives rise to
NONE!
Yes NONE
[Adult derivatives of fetal vascular structures]
The venous drainage are composed of ___
- Umbilical or allantoic or placental veins
- Vitelline or omphalomesenteric vein
- cardinal vein
- Umbilical vein
[Adult derivatives of fetal vascular structures]
this venous drainage system receives returning blood from the splanchopleyra to become the portal system
Omphalomesenteric veins or vitelline
[Adult derivatives of fetal vascular structures]
venous system that become the caval syste
cardinal veins
[Adult derivatives of fetal vascular structures]
umbilical vein that disappears at the end of the embryonic period
umbilical veins
___ connects the umbilical vein with the IVC
ductus venosus