Lesson 2.3 Chemical Communication Key Terms

Question 1

Endocrine System

Answer 1

The glands and parts of glands that produce endocrine secretions, help to integrate and control bodily metabolic activity, and include especially the pituitary, thyroid, parathyroid, adrenals, islets of Langerhans, ovaries, and tastes.

Question 2

Exocrine Gland

Answer 2

A gland that releases a secretion external to or at the surface of an organ

Question 3

Gland

Answer 3

A cell, or group of cells that removes materials from the blood, concentrates or alters them, and secretes them

Question 4

Glucagon

Answer 4

A protein hormone that is produced especially by the pancreatic islets of Lamgerhans and that promotes an increase in the sugar content of the blood

Question 5

Hormone

Answer 5

Any one of the many circulating chemical signals found in all multicellular organisms that are formed in specialized cells

Question 6

Hypothalamus

Answer 6

The ventral part of the vertebrate forebrain; functions in maintaining homeostasis, especially in coordinating the endocrine and nervous systems

Question 7

Insulin

Answer 7

A vertebrate hormone that lowers blood glucose levels by promoting the uptake of glucose by most body cells and the synthesis and storage of glycogen in the liver

Question 8

Pituitary Gland

Answer 8

An endocrine gland at the base of the hypothalamus; consists of a posterior lobe, which stores and releases two hormones produced by the hypothalamus

Question 9

Endocrine Gland

Answer 9

A gland (as the thyroid or the pituitary) that produces an endocrine secretion