Thoracic Cavity II Flashcards
Superior vena cava pierces the fibrous pericardium at the level of this
Transverse thoracic plane
Contents of the superior mediastinum (6)
Esophagus
Trachea
Arch of aorta
Brachiocephalic vein
Thymus
thoracic duct
Obstruction in this structure causes bilateral face, neck, and upper limb edema
Superior vena cava
Obstruction of this structure results in unilateral edema of face and the arm
Brachiocephalic veins
Recurrent laryngeal nerves pass in this
Tracheo-esophageal groove
Structure that passes in the tracheo-esophageal groove
Recurrent laryngeal nerve
Right recurrent laryngeal nerve hooks around this
Right subclavian artery
Left recurrent laryngeal nerve hooks around this
Ligamentum arteriosum and the arch of aorta
Nerve that provides parasympathetic fibers to thoracic viscera and passes posterior to the lung root
Vagus nerve
Anterior and posterior vagal trunks enter the abdomen through this
Esophageal hiatus in the diaphragm
Recurrent laryngeal nerve that hooks around the subclavian artery
Right
Recurrent laryngeal nerve that hooks around the ligamentum arteriosum and arch of aorta
Left
Nerve that passes anterior to the root of the lungs
Phrenic nerve
Double layered membrane that covers the heart and beginning of its great vessels
Pericardium
Pericardium component that is a tough external layer
Fibrous pericardium
Component that lines the internal surface of the fibrous pericardium
Parietal layer
2 layers of the serous pericardium
Parietal layer
Visceral layer
Artery of the parietal layer of the heart
Pericardiacophrenic artery
Pericardiacophrenic artery is a branch of
Internal thoracic artery
Artery that accompanies the phrenic nerve in the parietal layer of pericardium
Pericardiacophrenic artery
Pericardiacophrenic artery accompanies this structure in the pericardium
Phrenic nerve
Venous drainage of the parietal layer of pericardium
Pericardiacophrenic veins
Pericardiacophrenic veins are tributaries of this
Brachiocephalic vein (or internal thoracic)
Nerve supply to the parietal layer of the serous pericardium
Phrenic nerves (C3-C5)
Pericardium layer that forms the epicardium
Visceral layer
Serous pericardium layer that receives the same supply as the heart
Visceral layer
Arterial supply to visceral layer of serous pericardium
Coronary arteries
Venous supply to visceral layer of serous pericardium
Coronary sinus
Nervous supply to visceral layer of serous pericardium
Autonomic nerves
Potential space between the layers of the parietal and visceral layers of serous pericardium
Pericardial cavity
The pericardial cavity is the potential space between these two layers
Parietal and visceral layers of the serous pericardium
Transverse passage within the pericardial cavity
Transverse sinus
The transverse sinus is within this
Pericardial cavity
Anterior boundary of transverse sinus (2)
Pulmonary trunk and ascending aorta
Posterior boundary of the transverse sinus
Superior vena cavity
Recess in the pericardial cavity
Oblique sinus
Oblique sinus is found in this
Pericardial cavity
The oblique sinus is bound anteriorly by this
Left atrium
The oblique sinus is bound posteriorly by this
Pericardium overlying the anterior aspect of the esophagus
Sinus that is bound anteriorly by the pulmonary trunk and ascending aorta, and posteriorly by the SVC
Transverse sinus
Sinus that is bound anteriorly by the left atrium and posteriorly by pericardium overlying the anterior aspect of the esophagus
Oblique sinus
3 layers of each heart chamber, from superficial to deep
Endocardium
Myocardium
Epicardium
Most superficial layer of each heart chamber
Endocardium
Middle layer of each heart chamber
Myocardium
Deepest layer of each heart chamber
Epicardium
Heart chamber layer that is composed of endothelium and sub-endothelial connective tissue
Lining membrane of the heart and valves
Endocardium
Heart chamber layer that is composed of cardiac muscle
Myocardium
Heart chamber layer that is composed of mesothelium
Visceral layer of serous pericardium
Epicardium
Endocardium is composed of this type of tissue
Endothelium and sub-endothelial connective tissue
Myocardium is composed of this type of tissue
Cardiac muscle
Epicardium is composed of this type of tissue
Mesothelium
Apex of the heart is located here
5th intercostal space
Apex of the heart is formed by this
Left ventricle
Base of the heart is formed mainly by this
Left atrium
Esophagus lies immediately posterior to this
Base of the heart
Major branch off the 1st segment of the right coronary artery
Right marginal artery
Major branches off the 2nd segment of the right coronary artery (2)
AV nodal
Posterior interventricular
Major arteries of the heart (4)
Right coronary
Left circumflex
Ventricular branch
Left anterior descending
Small cardiac vein runs with the artery
Right coronary artery (marginal artery)
2 major arteries off the aorta
Right and left coronary arteries
Artery off the aorta that runs under the pulmonary trunk
Left coronary artery
3 branches of the left coronary artery
Left circumflex
Ventricular branch
Left anterior descending
The right marginal artery, AV nodal and posterior interventricular arteries arise from this
Right coronary artery
Venous drainage to all of the heart
Coronary sinus
Small, middle, and great cardiac veins are tributaries to this
Coronary sinus
The great cardiac vein runs with this artery
Anterior descending interventricular (LAD)
Right coronary artery (marginal artery) runs with this vein
Small cardiac vein
Anterior descending interventricular (LAD) artery runs with this vein
Great cardiac vein