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.
Zoom out to find Houston George Bush Intercontinental Airport (IATA code: IAH) in north, distance from city center: 20 miles (32 km). Zoom out to find Lyndon B. Johnson Space Center (blue marker) located in the Bay Area of southeast Houston. Space Center Houston is the National Aeronautics and Space Administration's center for American human spaceflight activities. To find a location use the form below. To view just the map, click on the Map button. Space station flight control room in the Mission Control Center at NASA's Johnson Space Center-Photo: NASA Archive. Bookmark/share this page. To find a location type: street or place, city, optional: state, country.