Flashcards in Hutchinson: Cardiothoracic Cavity Deck (40):
What are the regions and sub regions of the mediastinum?
1. Superior Mediastinum (the danger space!)2. Inferior mediastinum a. anterior (thymus) b. middle (heart) c. posterior (Vessels, nerves, lymphatics etc...)
Where does the greater splanchnic nerve originate?
Lateral horn of T5-T9
Where does the splanchnic nerve synapse?
NOT in the T5-T9. They course down to abdomen and synapse with pre-aortic ganglia.
Where does the Lesser splanchnic nerve originate?
Lateral horn of T10-T11
Where does the least splanchnic nerve originate?
Lateral horn of T12
At what level of the spinal column does the azygos vein appear?
Which part of the body is drained into the thoracic lymphatic duct?
All the body except right side of head, neck, chest and arm, which are drained by the right lymphatic duct.
At what vertebral level does the esophagus travel through the diaphragm?
At what vertebral area does the trachea bifurcate?
The right common carotid artery and the Right subclavian artery come together from what artery?
What is the serous membrane called on the outermost layer of the pericardial sac?
What is the serous membrane called on the innermost layer of the pericardial sac?
The serous pericardium is composed of three layers. What are they?
From superficial to deep:1. Serous parietal pericardium2. Pericardial space3. Serous visceral pericardium
What is the other name for the right AV valve?
What are the two other names for the Left AV valve?
Mitral valve or Bicuspid valve
What are the two valves connected to the left ventricle?
Aortic valve and Bicuspid valve
What two valves are connected to the right ventricle?
Pulmonary valve and tricuspid valve
What is the most anterior chamber of the heart?
What is the most medial chamber of the heart
What is the most posterior border of the heart?
What is the most lateral chamber of the heart?
Which valves have chord tendinae and papillary muscles and which ones do not?
The AV valves have them and the aortic and pulmonary valves do not.
What is systole
What is diastole?
What makes the LUB sound?
When the ventricles contract the AV valves close.
What makes the DUB sound?
When the ventricles relax, the pulmonary and aortic valves close passively by the returning pressure of blood in the exiting vessels.
Where do you place the stethoscope to auscultate the heart chambers?
by the sternal angle in between ribs 2 and 3. To the right thorax is the spot for aortic valve, the left is the pulmonary valve. in between 5 and 6 to the left is tricuspid valves and further left is the bicuspid valve. ALL PHYSICIANS TAKE BENJAMINS
Which coronary artery divides the right atrium from the right ventricle?
The right coronary artery
What arteries branch from the right coronary artery?
Right marginal artery and sometimes the posterior descending artery
If the PDA branches from the RCA, the heart is classified as
If the PDA branches from the LCA the heart is classified as...
What artery divides the left ventricle from the left atrium?
Left coronary artery
Which arteries branch off the LCA?
Left anterior descending artery or the anterior inter ventricular artery as well as the Left circumflex artery
How does the sympathetic innervation affect the coronary arteries?
It causes vasodilation
How does parasympathetic innervation affect the coronary arteries?
What is the major cardia vein?
What feeds into the coronary sinus?
middle cardiac vein and the great cardiac vein
Which spinal levels innervate the heart sympathetically?
Which spinal nerves innervate the heart?
Cervical and thoracic sympathetic nerve?