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1 Paranasal sinuses. Sinus paranasales. A B

2 Maxillary sinus. Sinus maxillaris. Situated below the orbit and lateral to the nose, it opens below the middle nasal concha. A

3 Sphenoidal sinus. Sinus sphenoidalis. Paired sinus within the sphenoid bone behind the sphenoethmoidal recess and above the na-sopharyngeal cavity; it opens into the sphenoethmoidal recess. B

4 Frontal sinus. [[Cellulae ethmoidales]]. Sinus frontalis. Sinus in the squama of the frontal bone and often also in the orbital part, it opens below the middle concha. A B

5 Ethmoidal sinus. Sinus ethmoidales. System of cavities with pea-sized air cells between the nasal cavity and orbit. It is divided into the following parts. A

6 Anterior sinus. Sinus anteriores. Anterior group of ethmoidal air cells which opens below the middle nasal concha. A

7 Middle sinus. Sinus medii. Middle group of ethmoidal air cells which opens below the middle nasal concha. A

8 Posterior sinus. Sinus posteriores. Posterior group of ethmoidal air cells which opens below the superior nasal concha. A

9 Ethmoidal bulla. Bulla ethmoidalis. Rudimentary nasal concha in the form of a vesicular, bulging ethmoidal air cell located below the middle nasal concha. B

10 Infundibulum ethmoidale. Recess in front of the ethmoidal bulla in the middle nasal meatus. It receives the openings of the maxillary and frontal sinuses. B

11 Hiatus semilunaris. Semilunar fissure between the ethmoidal bulla and the uncinate process. B

12 LARYNX. It lies between the pharynx and trachea. C

13 LARYNGEAL CARTILAGES AND JOINTS. Cartilagines et articulationes laryngeales.

14 Thyroid cartilage. Cartilago thyroidea. Largest laryngeal cartilage that partially encloses the others. C D

15 Laryngeal prominence. Prominentia laryngea. Prominence in the midline of the neck produced by the thyroid cartilage. It is more pronounced in males (Adam's apple). C D

16 Right/left lamina. Lamina dextra/sinistra. Lateral plates of the thyroid cartilage meeting in the midline like the bow of a ship. C D

17 Superior thyroid notch. Incisura thyroidea superior. Deep, median notch in the upper portion of the thyroid cartilage, between the right and left thyroid laminae. C D

18 Inferior thyroid notch. Incisura thyroidea in-ferius. Shallow median notch at the lower margin of the thyroid cartilage. D

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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