dissection prep questions Flashcards
Anterior Interventricular Artery - Supplies, Origin, Location, Branches
Supplies: Anterior surface of left ventricle, distal two thirds of anterior and inferior interventricular septum
Origin: a continuing branch of the left coronary artery
Location: Follows the interventricular septum of the anterior surface of the heart
Branches: Conal Artery, Diagonal, Marginal
Great Cardiac Vein: Supply, Location, Origin, Branches
Supplies: returns deoxygenated blood from the anterior surface of Left Ventricle and drains into coronary sinus into Right Atrium.
Origin: Coronary Sinus; borders the Vieussens valve of the coronary sinus (anatomic landmark between the coronary sinus and the great cardiac vein)
Location: anterior surface of the heart, through the anterior interventricular groove accompanied by the anterior interventricular artery
Branches: Left Marginal Vein
Greater Splanchnic Nerve: Location, Origin, Branches, Innervation
Location: Anterolateral surface of vertebral column
Origin: T5-T9 ganglia, a part of the sympathetic chain.
Branches: to descending aorta (names?)
Innervation: Foregut motility; sympathetic innervation to the adrenal medulla, and innervates pancreas, spleen, gallbladder, liver.
Left Phrenic Nerve: Location, Innervation, Origin
Location: left side thoracic cavity, passes through diaphragm at ??
Innervation: the left diaphragmatic dome inferior surface of the diaphragm
Origin: arise from the union of C3, C4, and C5 spinal nerves and passes anteriorly over the medial part of the left subclavian artery
Left Recurrent Laryngeal Nerve: Origin, Innervation, Location
Origin: The left recurrent laryngeal nerve comes from the left Vagus nerve
Location: Loops posteriorly around the arch of the aorta and ascends in tracheoesophageal groove of the aorta, posterior to the ligamentum arteriosum. Superior Mediastinum
Innervation: All intrinsic muscles of the larynx except the cricothyroid muscle
Azygos Vein: Location, Origin, Supplies, Branches
Location: ascends in the thorax to the right of the vertebral column
Origin: Inferior Vena Cava, at the junction of the right ascending lumbar and subcostal veins, entering the chest through the caval foramen
Supplies: Drain the posterior Thoracic and Abdominal walls and drains into Superior Vena Cava 12-4 intercostal
Branches: Hemiazygos and Accessory Hemiazygos Veins
Hemiazygos Vein: Location, Origin, Supply, Branches
Location: Left aspect of the vertebral column and is in posterior mediastinum, posterolateral to the descending aorta
Origin: left ascending lumbar vein
Supply: drains into the azygos vein at the level of T8 thoracic vertebra.
Branches: Azygos Vein and Accessory Hemiazygos Veins = 9, 10, 11 left posterior intercostal veins & mediastinal and esophageal veins
Thoracic Duct: Location, Origin, Supply, Branches
Location: Posterior aspect of vertebral column, aortic hiatus, posterior mediastinum
Origin: twelfth thoracic vertebra, confluence of left and right lumbar lymph trunks (Cisterna Chyli)
Supply: entire body (aside from the right upper limb, right breast, right lung and right side of the head and neck
Branches:
Pulmonary Ligament: Location, Contents, Insertion
Location: Inferior to the hilum of the lung, lower lobe of lung
Contents: Serous membrane (visceral and parietal)
Insertion: into dome of hemidiaphragm
Left internal Thoracic Arteries: Location, Origin, Branches, Supplies
Origin: Left Subclavian Artery
Locations: Posterior surface of chest wall
Branches: anterior intercostal arteries 1-6 space, the musculophrenic and the superior epigastric arteries at 6th intercostal cartilage
Supplies: Branches supply the skin and muscles of the anterior aspect of the thoracic cage and the superior part of the abdominal wall. Additionally, it provides blood supply for the breasts, parietal pleura, sternum, pericardium and thymus
Oesophagus: Location, Supply, Origin, Structure
Location: Posterior to the Trachea
Supply: Bronchial Arteries (sup and inf), aortic oesophageal arteries, ascending left gastric artery
Origin: Oropharynx; passes trough the oesophageal hiatus of diaphragm
Structure: mucosa surface, smooth muscle structure
Right Coronary Artery: Location, Supply, Origin, Branches
Location: Right Anterior aspect of the heart, along the right Auricle of Right Atrium
Supplies: Right Ventricle, Right Atrium, SA Node and AV Node
Origin: branches off ascending aorta
Branches: Right Marginal Artery, Posterior Descending Artery
Small Cardiac Vein: Location, Origin, Supplies, Branches
Location: Wraps around and runs with the Right Marginal Artery from RCA; Right Auricle of Right Atrium ie. Coronary Sulcus
Supplies: Drains the posterior right atrium and ventricle of the heart into the Coronary Sinus posteriorly
Origin: distal portion of the anterior aspect of the right coronary sulcus
Branches: Right marginal vein
Right and Left Intercostal Neurovascular bundles
Costal Groove o
Right Phrenic Nerve:
