salivary gland anatomy. of the head with the parotid, submandibular and sublingual glands

agencies anal anatomical anatomy antennae appendix biology black body canal design digestive disease drawing duodenum esophagus excretion feces female gallbladder gland glands graphic green healing health healthy human illustration image internal intestine jejunum large liver man medical medicine mouth pancreas pharynx rectum salivary science scientific spleen stomach system tongue vector