Major Differences Between Endocrine And Exocrine Glands Essay

935 WordsApr 28, 20164 Pages
1. Define endocrine glands. What are the major differences between endocrine and exocrine glands? a) Endocrine glands are ductless glands that produce hormones and release them directly into the blood stream. b) Exocrine glands produce nonhormonal substances that include sweat, mucous, oil, and saliva and many others. They have ducts that secrete these substances into body cavities and onto body surfaces . They secrete enzymes, may or may not have ducts. Endocrine glands are ductless glands that produce hormone. They are vascularized glands and they secrete internally. They include the pituitary, thyroid, parathyroid, adrenal, and pineal glands as well as the hypothalamus, pancreas, gonads and placenta. 2. What is pituitary gland? Define the major hormones and their actions secreted by anterior and posterior pituitary gland. a) The pituitary gland is the neuroendocrine gland located near beneath the brain that serves a variety of functions including regulation of gonads, thyroid, adrenal cortex, lactation, and water balance. b) Anterior pituitary hormones include: growth hormone (GH), thyroid-stimulating hormone (TSH), adrenocorticotropic hormone (ACTH), Follicle-stimulating hormone (FSH), luteinizing hormone (LH), and prolactin (PRL). Posterior pituitary hormones include oxytocin and antidiuretic hormone (ADH) or vasopressin. Growth Hormone (GH)- stimulates growth Thyroid-stimulating Hormone (TSH) (thyrotrophin)- stimulates the thyroid gland to secrete its own
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