Submandibular gland of lower limb

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This confirms what anatomy tells us: the submandibular gland has nothing to do with the lower limb.

The submandibular gland is a head and neck structure, not a lower limb structure.

It is one of the three paired major salivary glands (the others being the parotid and sublingual glands).
It sits in the submandibular triangle of the neck, below the body of the mandible, wrapped around the posterior free edge of the mylohyoid muscle (dividing it into a larger superficial lobe and a smaller deep lobe).
It secretes mixed seromucous saliva via Wharton's duct, which opens at the sublingual papilla on either side of the lingual frenulum in the floor of the mouth.
It is closely related to the facial artery, lingual and hypoglossal nerves, and the marginal mandibular branch of the facial nerve (clinically important in submandibular gland excision to avoid facial droop).
Common pathology includes sialolithiasis (stones), sialadenitis, and pleomorphic adenoma - all confirmed as head/neck topics in standard surgical and ENT texts (Bailey and Love's Short Practice of Surgery, Cummings Otolaryngology, Scott-Brown's Otorhinolaryngology).

There is no "submandibular gland of the lower limb" - that phrase mixes an anatomically fixed head/neck gland with an unrelated body region. If you meant something else, a few possibilities:

You may be thinking of a different gland/structure actually found in the lower limb (e.g., lymph nodes in the leg, or sweat/sebaceous glands of the skin).
You may have meant a different named gland confused with "submandibular" (e.g., popliteal lymph nodes, inguinal nodes).
Or this could be a typo/mix-up from a study question bank.

Could you clarify what you're actually trying to learn - lower limb lymphatic drainage, a specific lower limb structure, or the submandibular gland's own anatomy? I can give a focused, accurate answer once I know which one you meant.

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