Select the term(s) that best answers the following statements. Write the letter

Question

Select the term(s) that best answers the following statements. Write the letter only. A. Alveoli H. Hepatic portal vein O. Spleen B. Interatrial septum I Labial frenulum P. Surfactant C. Canine J. Lymph node Q. Tidal volume D. Chyme K. Mediastinum R. Thoracic duct E. Enamel L. Pectinate muscle S. Upper respiratory tract F. Fossa ovalis M. Peristalsis T. Uvula G. Hard palate N. Sinoatrial (SA) node 1. A food mixture of enzymes and hydrochloric acid form in the stomach. 2. A wavelike muscle contraction that moves the food along the digestive tract. 3. A tooth with one cusp or point for shredding food. 4: A membranous structure that keeps the lip adhered to the gums. 5. Area composed of the palatine process of the maxillae and palatine bones. 6. The hardest material in the body, found in bone and teeth. 7. The normal amount of air that is exhaled in a normal breath. 8. The structural, functional units of the respiratory tract. 9. A secretion by type II septal cells that decreases the surface tension of the lungs. 10. A small pendulous structure that partially separates the oral cavity from the oropharynx 11. Nasal cavity and pharynx (throat) collectively comprise the... 12. A lymph organ that filters the blood by removing old worn-out RBCs and foreign subs. 13. An organ that filters lymph via afferent and efferent vessels. 14. A major duct that drains most of the lymph into the left subclavian vein. 15. The veins that collect from the digestive system and flow into the liver before returning to the heart. 16. The pacemaker of the heart. 17. Separates the left atrium from the right atrium. 18. The location of the heart between the lungs deep in the thorax. 19. The thin spot located between the atria. 20. Muscles located in the wall of the atrium.

Explanation / Answer

1. A food mixture of enzymes and hydrochloric acid form in the stomach.

Chyme

2. A wavelike muscle contraction that moves the food along the digestive tract.

Peristalsis

3. A tooth with one cusp or point for shredding food.

Canine

4: A membranous structure that keeps the lip adhered to the gums.

Labial frenulum

5. Area composed of the palatine process of the maxillae and palatine bones.

Hard palate

6. The hardest material in the body, found in bone and teeth.

Enamel

-7. The normal amount of air that is exhaled in a normal breath.

Tidal volume

8. The structural, functional units of the respiratory tract.

Alveoli

9. A secretion by type II septal cells that decreases the surface tension of the lungs.

Surfactant

10. A small pendulous structure that partially separates the oral cavity from the oropharynx

Uvula

11. Nasal cavity and pharynx (throat collectively comprise the

Upper respiratory tract

12. A lymph organ that filters the blood by removing old worn-out RBCs and foreign subs.

Lymph node

13. An organ that filters lymph via afferent and efferent vessels.

Spleen

14. A major duct that drains most of the lymph into the left subclavian vein.

Thoracic duct


15. The veins that collect from the digestive system and flow into the liver before returning to the heart.

Hepatic portal vein

16. The pacemaker of the heart.

Sinoatrial (SA) node

17. Separates the left atrium from the right atrium.

Fossa ovalis

18. The location of the heart between the lungs deep in the thorax.

Mediastinum

19. The thin spot located between the atria.

Interatrial septum

20. Muscles located in the wall of the atrium.

Pectinate muscle

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