Glands that secrete their products into ducts are classified as 1.) serous glands 2.) mucous glands 3.) endocrine glands 4.) exocrine glands 5.) salivary glands
exocrine glands
The correct answer is 4.) exocrine glands.
Exocrine glands are a type of gland that secretes their products through ducts onto a surface or inside a cavity. Examples of exocrine glands in the human body include sweat glands, sebaceous glands which secrete oil onto hair follicles, and salivary glands that secrete saliva into the mouth.
Serous glands and mucous glands are two types of exocrine glands that secrete different types of fluids. Serous glands secrete a watery, protein-rich fluid, while mucous glands secrete a thick, viscous substance.
Endocrine glands, on the other hand, secrete hormones directly into the bloodstream. The hormones then travel throughout the body to reach and affect target cells and organs.
Salivary glands are a type of exocrine gland located in the mouth. They secrete saliva into the mouth, which aids in the digestion of food and helps to keep the mouth moist.
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