As a loyal servant in the presence of his master, I would like to add my own two cents to the sacred insights of the Chasam Sofer and the Avnei Neizer, zy”a. Where do we find in the Beis HaMikdash—which functions as a “neck”—two conduits like the trachea and esophagus connecting Yisrael with HKB”H? These functions were fulfilled gloriously by the Shulchan and the Menorah. Regarding the Shulchan, it is written (Shemos 25, 30): "תמיד לפני פנים לחם השלחן על ונתת"—you shall place on the Shulchan the Show Bread (“lechem hapanim”) before Me, always. Regarding the Menorah, it is written (ibid. 27, 20): שמן אליך ויקחו ישראל בני את תצוה ואתה" "תמיד נר להעלות למאור כתית זך זית—and you shall command Bnei Yisrael that they shall take for you clear olive oil, crushed for illumination, to light a lamp continually.
Furthermore, we learn in the Gemara (B.B. 25b): הרוצה" "בדרום ומנורה בצפון שלחן וסימניך ,יצפין ושיעשיר ידרים שיחכים—one who wants to become wise should face south (Rashi: He should turn slightly southward while davening), while one who wants to become wealthy should face north (he should turn slightly northward while davening); and your mnemonic is: The Shulchan stood in the north, while the Menorah stood in the south. This teaches us that the Menorah and the kindling of its lamps on the southern side of the Heichal represents the wisdom of the Torah. This is expressed as follows (Mishlei 6, 23): "אור ותורה מצוה נר כי"—for a mitzvah is a lamp and the Torah is light. The Shulchan, on the other hand, located on the northern side of the Heichal, laden with the “lechem hapanim,” represents affluence.
Thus, we can propose that the Menorah, representing the illumination of Torah, resembles the trachea, which transmits the spoken words of Torah. The Shulchan, on the other hand, represents the esophagus, which is associated with eating and drinking. Accordingly, these two vessels in the Beis HaMikdash functioned as the two conduits located in the neck. This explains very nicely why it says of the Beis HaMikdash: "לתלפיות בנוי צווארך דויד כמגדל"—it functions like a neck connecting Yisrael with their Father in Heaven.
