We call the major salivary glands the parotid, submandibular, and sublingual glands. They all secrete saliva into your mouth, the parotid through tubes that drain saliva, called salivary ducts, near your upper teeth, submandibular under your tongue, and the sublingual through many ducts in the floor of your mouth.esides these glands, there are many tiny glands called minor salivary glands located in your lips, inner cheek area (buccal mucosa), and extensively in other linings of your mouth and throat. Salivary glands produce the saliva used to moisten your mouth, initiate digestion, and help protect your teeth from decay.
NASA's Johnson Space Center in Houston has been the agency's human spaceflight hub for half a century, though not always under its current name.
Spot The Station will give you a list of upcoming space station sighting opportunities for your location. Read More. Several times a week, Mission Control at NASAâs Johnson Space Center in Houston, TX, determines sighting opportunities for over 6,700 locations worldwide.