Anatomy Section 2 Flashcards
External and internal intercostal muscles are innervated by what nerves?
intercostal nerves
posterior intercostal arteries drain into which body part?
thoracic wall
posterior intercostal veins drain into what?
azygos, hemi and accessory azygos
intercostal nerves innervate what?
skin and muscles of thoracic and abdominal wall
phrenic nerve originates from where?
spinal cord levels C3-5
The heart is innervated by what nerves?
Vagus (para) and thoracic sympathetic trunk T1-T4 (symp)
Right atrium of heart is perfused by what?
The right coronary artery
The opening of the coronary sinus is located where?
inside the right atrium
Right atrioventricular valve has how many leaflets?
3
the right ventricle is perfused by which coronary artery?
The right coronary artery
The interventricular septum is perfused by what coronary arteries?
The superior 3/4 was perfused by the LAD and the inferior 1/4 by the posterior interventricular artery
Trabeculae carneae are located where?
right and left ventricles of heart
Left ventricle is perfused by which coronary artery?
The LCA
The trachea is perfused by what?
The bronchial arteries via the aorta
The right and left lungs are innervated by what?
The vagus nerve (para) and the thoracic sympathetic trunk T1-T4 (symp)
Which lung has a horizontal fissure?
The right
The esophagus is perfused by what?
The esophageal arteries from the anterior descending aorta
The thoracic duct drains into where?
Left venous angle at the juncture of the left cephalic and left internal jugular vein
The right coronary artery arises from where?
The aorta
The left coronary artery arises from where?
The aorta
The circumflex artery perfuses what part of the heart?
Left wall of heart
The pulmonary trunk flows into where?
Pulmonary arteries
The arch of the aorta drains into what?
Right bracheocephalic trunk, left common carotid artery, left subclavian artery, and descending aorta
Common carotid artery branches into what arteries?
Internal and external carotid arteries
