ZOO 3733C Study Guide - Quiz Guide: Esophageal Hiatus, Bronchus, Serratus Anterior Muscle

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Left lung has two lobes: left superior lobe. Left oblique ssure separates: left inferior lobe. Right lung has three lobes: right superior lobe. Right horizontal ssure separates: right middle lobe. Right oblique ssure separates: right inferior lobe. Trachea stops at the level of t4 (carina) and splits o into two primary bronchi: primary bronchi then separate into secondary bronchi and tertiary bronchi. Esophagus comes through the diaphragm through the esophageal hiatus t10. Left lobe has a cardiac notch and a lingula. Deep: pectoralis minor: serratus anterior (winged scapula, subclavius, coastal cartilage and ribs. Thursday, october 19, 2017: intercostal muscles: muscles that run between the ribs. Innermost intercostals: don"t attach to either, just run in between the ribs themselves: usually can"t see in models. Know vagus nerve (cn x): major parasympathetic innervator of heart: splits o into esophageal plexus. Para-vertebral ganglia: yellow that runs behind vertebrae. Pre-vertebral ganglia: celiac ganglia, superior mesenteric ganglia, inferior mesenteric ganglia.

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