Learning Objectives for Chapter 1 AN INTRODUCTION TO THE HUMAN BODY Education is for improving the lives of others and for leaving your community and world better than you found it. Marian Wright Edelman Define anatomy and physiology. -anatomy is the science of the structure and relationship of the structures. -physiology is the science of body functions (dhow it works) Describe the six levels of structural organization and give examples of each. Chemical - atoms and molecules Cellular - molecules
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to: navigation‚ search This article is about the human body as a whole. For components within the human body‚ see human anatomy. [[File:|thumb|300px|Human body features displayed on bodies on which body hair and male facial hair has been removed]] The human body is the entire structure of a human organism‚ and consists of a head‚ neck‚ torso‚ two arms and two legs. By the time the human reaches adulthood‚ the body consists of close to 100 trillion cells‚[1] the basic unit of life.[2] These
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TIME/DATE _______________________ 1. Use the key below to indicate the body systems that perform the following functions for the body. Then‚ circle the organ systems (in the key) that are present in all subdivisions of the ventral body cavity. Key: a. b. c. cardiovascular digestive endocrine d. e. f. k g. h. i. nervous reproductive respiratory j. k. skeletal urinary 1. rids the body of nitrogen-containing wastes c 2. is affected by removal of the thyroid
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The Human Body and Water XXXXXXX University of Phoenix/ Axia College SCI 241 July 1‚ 2009 The Human Body and Water The Most Important Nutrient Of all vitamins and minerals in the human body water is the most important. It is the one essential nutrient that the human body cannot survive without. The adult human body is comprised of approximately 60% water‚ the body of a small child‚ infants for example is comprised of approximately 70% water. Water is found throughout the body
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NERVOURS SYSTEM: NEURONS: * STRUCTURE AND FUNCTION: Specialized cell transmitting nerve impulses; a nerve cell. Neurons have specialized projections called dendrites and axons. Dendrites bring information to the cell body and axons take information away from the cell body. Neurons communicate with each other through an electrochemical process. Information is transmitted to the receiving cell at junctions via chemical messengers called neurotransmitters. At this juncture‚ the neuron transmitting
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Chapter 5: Skeletal FIBROUS joints form soft spots on a baby’s head. The nose is formed mostly of bone. – FALSE (cartilage) An immature bone cell found growing bone – OSTEOBLAST. An epiphyseal plate of cartilage forms at either end of a long and is the future growth plate may grow longer. –TRUE The Tibia of the lower leg forms the “shin bone”. –TRUE Ligaments connect the bone to bone at places called joints. –TRUE The lungs and heart are protected by the ribs‚ sternum‚ and
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Organisation of the human body. Jade Roberts. Barbara. P1‚ P2 AND P3. Health and Social Care level 3. 1 In this booklet I will be explaining what the main components and functions are of the cells. I will also be outlining the structure of the main tissues in the body and the gross structure of all the body systems. 2 The components and functions of cells. Cell membrane All organisms have something in common‚ they all have a cell membrane. The cell membrane is a barrier that separates a cell
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Introduction to the Human Body Matching: Directions of the body Medial: Toward the midline of the body; opposite of lateral. Proximal: A structure is nearer to the trunk than is another part; opposite of distal. Distal: The part of the radius (arm bone) that is closer to the wrist than the elbow. Superior: The lung is above the diaphragm; above is described as… Anterior: Toward the front (the belly surface); another word is ventral. Matching: regional Terms Axillary: Armpit. Patellar: Kneecap
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Chapter 1 An Introduction to the Human Body Anatomy – science of body structures and relationships among structures Physiology – science of body functions SIX LEVELS OF BODY ORGANIZATION (Given in order smallest to largest) Chemical level a. atoms – smallest unit of matter that participates in chemical reaction b. molecules – two or more atoms joined together c. Several atoms are essential for life: Carbon‚ Hydrogen‚ Oxygen‚ Nitrogen‚ Phosphorus‚ Calcium‚ Sulfur d. Examples of biological
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Function of the Skin The skin is more than just external covering. It acts as a sensitive boundary between our bodies and the environment. The skin has several important functions‚ for example: Protection‚ temperature regulations‚ waste removal and sense of touch. Protection • The skin acts as a protective organ. The film of sebum and sweat on the surface of the skin (acid mantle). It acts as an anti-bacterial agent to help prevent the multiplication of micro-organisms on the skin. • The fat
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