Across
- 5. situated in the middle mediastinum and Restricts excessive movements of heart.
- 6. A semilunar valve consisting of three crescent-shaped cusps. It does not have chordae tendineae or papillary muscles.
- 8. transports oxygen-poor blood to the right atrium
- 10. is a projection on the anterior aspect of the left atrium
- 14. composed of two leaflets (anterior and posterior, supported by chordae tendineae attached to the papillary muscles of the left ventricle
- 16. lines the inside of the heart chambers and covers the heart valves and Provides a smooth surface to reduce resistance to blood flow within the heart
- 17. Located between the right atrium and right ventricle.
Down
- 1. Communicates with the right ventricle through right AV orifice (tricuspid orifice)
- 2. Forms the left surface, apex, part of the left border, part of the anterior surface, part of the inferior border and most of the diaphragmatic surface of the heart.
- 3. A semilunar valve with three cusps (leaflets), similar in structure to the pulmonary valve, but slightly thicker to withstand higher pressure
- 4. visceral layer of the pericardium that contains fat and blood vessels that supply the heart
- 7. the Left atrium communicates with left ventricle through this left orifice
- 9. ensures one-way blood flow from the left atrium into the left ventricle during diastole
- 11. the heart is located in the middle of this space, within the pericardium
- 12. contracts to propel blood out of the heart chambers and into the circulatory system and is most prominent in the left ventricle
- 13. outer layer of serous pericardium, lines the inner surface of fibrous pericardium.
- 15. Presents a shallow, oval shaped depression – fossa ovalis