Essentials of Human Anatomy and Physiology Chapter 1 Questions And Answers

Essentials of Human Anatomy and Physiology Chapter 1 Microscopic Anatomy - ANS Study of microscopic structures of tissues and organs Atoms - ANS Building blocks of matter Molecules - ANS Groups of two or more atoms held together by chemical bonds Cells - ANS Smallest unit of life Tissues - ANS Groups of cells with a common structure and function. Organs - ANS Groups of tissues organized to perform a particular task Organ Systems - ANS A group of organs that work together in performing vital body functions. Organisms - ANS Living things Integumentary System - ANS Consists of the skin, mucous membranes, hair, and nail Skeletal System - ANS Provides Shape and structure to the body. Allows for movement. Protects vital organs. Produces blood cells. Muscular System - ANS Consists of skeletal muscles, tendons that connect muscles to bones, and ligaments that attach bones together to form joint; enables movement of the body and internal organs Nervous System - ANS A conglomeration of billions of cells specifically designed to provide a communication network within the human body. Endocrine System - ANS Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use (metabolism) by body cells. Cardiovascular System - ANS The transport system of the body responsible for carrying oxygen and nutrients to the body and carrying away carbon dioxide and other wastes; composed of the heart, blood vessels, and blood. Lymphatic System - ANS Composed of a network of vessels, ducts, nodes, and organs. Provides defense against infection.