Unit 7 Day 1 Anatomy

Kindness is in our power, even when fondness is not.

Samuel Johnson

Endocrine System

Today’s Agenda

Return TestsIntroduction to Hormone UnitNotes on hormones/glandsPractice endocrine glands

Function of Endocrine System

Types of Glands

Endocrine–Produces chemical substance

and releases it across the surface of the gland.

–AKA ductless glands–Examples: pituitary, adrenal,

hypothalamus

Types of Glands

Exocrine–Produces chemical substance

and releases through a duct or pore

–AKA glands with ducts–Examples: lacrimal, sudoriferous,

sebaceous

What makes a hormone a hormone?

1. A chemical produced by an endocrine gland.

2. Secreted into and distributed by the bloodstream.

3. Received by target cells.

Example: ADH is secreted by pituitary gland and works to reduce the permeability of the collecting ducts.

Identify the gland, hormone, and target cells:

Aldosterone is secreted by kidneys and acts to regulate sodium resorption by the nephron.