When the secretions from the gland must go through a duct, it is a(n) gland?

Exocrine

Explanation:

The exocrine glands are the glands that secrete their substances or secretions directly into a duct. The examples of the exocrine glands include the salivary, sweat, ceruminous, sebaceous, mucous and mammary glands. The exocrine glands secrete glands ions, water, mucins, enzymes and other substances. These glands can be found in regions of the respiratory tract, mouth cavity, skin pores, and digestive tracts. The secretion from these glands is under the control of nervous system.

c-reactive protein (crp) is an acute phase protein belonging to pentraxin family of proteins, whose levels increases 1000-fold or more in concentration in blood during the occurrence of an injury, inflammation or tissue death.