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Anatomy 2 final ex.
Trunk
| Question | Answer |
|---|---|
| Top of the sternum. | Manubrium |
| A tubercle found on the posterior surface of the first rib's body. | Scalene Tubercle |
| Part of the rib that articulates with the body of the vertebrae. | Head of Rib |
| Stabilizes the ribs and aids in inspiration; ends anteriorly as the anterior intercostal membrane which can be considered to be a continuation of epimysium muscle. | External Intercostal Muscle |
| Aids in expiration; ends posteriorly as posterior intercostal membrane. | Internal Intercostal Muscle |
| 12 pairs in number. | Levatores Costarum Muscle |
| Anterior intercostal artery; blood supply to the first 5 or 6 interspaces. Branch of the Subclavian. | Internal Thoracic Artery |
| Anterior intercostal artery; the intercostal spaces 6 and on receive blood from this artery. | Musculophrenic Artery |
| False Ribs | Ribs 8-12. |
| Floating Ribs that only articulate with their corresponding vertbrae. | Ribs 11-12. |
| CN XI | Spinal Accessory Nerve |
| Nerve that passes anterior to both subclavian arteries and the roots of the lungs. It's part of the superior mediastinum. | Phrenic Nerve |
| Passes anterior to the subclavian arteries but posterior to the root of the lung. | Vagus Nerve |
| Sinoatrial nodal artery, posterior interventricular branch or posterior descending artery, atrioventricular nodal branch. | Right Coronary Artery |
| At the root of the lung, this artery is anterior inferior to the superior lobar bronchus. | Pulmonary Arteries |
| Left branch of the this artery comes off the aorta, the right branch comes off of the intercostal artery or one of the left bronchal arteries. | Bronchial Arteries |
| The smooth part between the two vena cava in the right atrium. | Sinus Venarum |
| The thick muscle bundles that give the right ventricle its rugged texture. | Trabeculae Carnae |
| The fibrous chords attaching the papillary muscles to the valve cusps. | Chorda Tendinae |
| Valve that has 3 cusps with nodules. They are exits to the pulmonary arteries and the aorta. | Semilunar Valves |
| Valve that separates atrium from ventricle. Can listen to it at the 5th intercostal space. | Mitral Valve, Bicuspid Valve, or Left Atrioventricular Valve |
| Conical projections of ventricular muscle related to the cusps. | Papillary Muscles |
| Fossa in right atrium that was once a foramen before birth. | Fossa ovale |
| Atrioventricular bundle that runs below the membranous part of the interventricular septum. | Bundle of His |
| Separates the upper and middle lobes from the lower lobe in the right lung | Oblique Fissure |
| Part of the lung served by one segmental bronchus and its accompanying segmental artery. They are supplied by the tertiary bronchi. | Lateral and Medial Bronchopulmonary Segment |
Created by:
Fleurdelis
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