Human body structure and function pdf

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human body structure and function pdf

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The Human Body: Linking Structure and Function provides knowledge on the human body's unique structure and how it works. Each chapter is designed to be easily understood, making the reading interesting and approachable. Organized by organ system, this succinct publication presents the functional relevance of developmental studies and integrates anatomical function with structure.

Notes Human Physiology Pdf

To browse Academia. Skip to main content. By using our site, you agree to our collection of information through the use of cookies. To learn more, view our Privacy Policy. Log In Sign Up. Download Free PDF. Ahmed A. Download PDF. A short summary of this paper. Research and clinical experience are continually expanding our knowledge, in particular our knowledge of proper treatment and drug therapy.

Insofar as this book mentions any dosage or application, readers may rest assured that the authors, editors, and publishers have made every effort to ensure that such references are in accordance with the state of knowledge at the time of production of the book. Nevertheless, this does not involve, imply, or express any guarantee or responsibility on the part of the publishers in respect to any dosage instructions and forms of applications stated in the book.

Every user is requested to examine carefully the manufacturers' leaflets accompanying each drug and to check, if necessary in consultation with a physician or specialist, whether the dosage schedules mentioned therein or the contraindications stated by the manufacturers differ from the statements made in the present book. Such examination is particularly important with drugs that are either rarely used or have been newly released on the market.

Every dosage schedule or every form of application used is entirely at the user's own risk and responsibility.

The authors and publishers request every user to report to the publishers any discrepancies or inaccuracies noticed. Some of the product names, patents, and registered designs referred to in this book are in fact registered trademarks or proprietary names even though specific reference to this fact is not always made in the text. Therefore, the appearance of a name without designation as proprietary is not to be construed as a representation by the publisher that it is in the public domain.

This book, including all parts thereof, is legally protected by copyright. Any use, exploitation, or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to prosecution. This applies in particular to photostat reproduction, copying, mimeographing, preparation of microfilms, and electronic data processing and storage.

Preface to the First English EditionThe first German edition of this book, which was later lovingly known as "The Faller," published in At this time nobody could ever have imagined that "The Human Body," written by Swiss anatomist Adolf Faller, would remain uniquely successful for almost 40 years.

Thirteen German editions and several editions in other languages speak for themselves. Fifteen years after Faller's death, the thoroughly and extensively revised 13th German edition published.

The current English edition is based upon this German edition. The new version contains almost more pages than the original. In addition, more than 50 new illustrations have been added to facilitate an easier approach to sometimes difficult information.

Where necessary, entire chapters have been rewritten to cover the latest developments in human biology and medicine. All these changes have been made with the reader in mind. In fact, many of the changes were suggestions from the readers which we have happily incorporated. These include a brief summary at the end of each chapter, a fold-out depicting the complete human skeleton, and a table of contents at the beginning of each chapter.

We therefore thank our readers for their many helpful suggestions and hope that readers of the English edition will follow suit. Many thanks go to our translator Oliver French MD, who not only skilfully translated the text but also adapted it to American medical practice.

Due to his expertise this book is far more than a simple translation of a German textbook; it has really become an international textbook in its own right.

Preparing this English edition was a rewarding experience and we hope that the reader will share our enthusiam when studying the fascinating fabric of the human body. This work has been made particularly enjoyable by the help of the experienced Thieme staff. Mr IntroductionThe basic building block of the human body as well as of all animals and plants is the cell.

It is the smallest independent living entity and can live independently as a single-celled unicellular organism e. In multicellular organisms metazoa the cells organize in large units and become functional entities within an overarching framework. In unicellular organisms, such as bacteria and fungi, all the cells exhibit an identical basic structure.

Multicellular organisms, such as plants, animals, and humans, also exhibit a fundamentally uniform organization.

Here, however, there are great differences in the variety of tasks, and each type of cell specializes in the execution of a specific task within the organism.

For instance, red blood cells erythrocytes transport oxygen, while other cells serve as conduits for stimuli nerve cells or serve reproduction germ cells. The actions of each individual cell in an organism depend on specific genetic information. In the cell this information is stored in certain sections of the substance termed deoxyribonucleic acid DNA in the genes. It consists of programs to direct cell reproduction as well as the synthesis of proteins. Both functions are essential to ensure that a fertilized ovum can develop into a multicellular organism and that cells differentiated in various ways, such as brain, lung, muscle, or liver cells, can develop from common precursor cells.

Since the number of cells is so great, each individual building block must be microscopically small. When cell processes are included, Besides these basic properties, certain cells possess specific properties. These may include mobility e. Structure of the Cell and Cell Organelles Basic StructureExamination of a cell by light microscopy shows a fluid cell body cytoplasm , a cell nucleus and the surrounding cell membrane plasmalemma Fig.

The cytoplasm contains a number of highly organized small bodies, called cell organelles, that can often only be seen by electron microscopy. It also contains certain supportive structures parts of the cytoskeleton and numerous cell inclusions e. Cell MembraneThe surrounding cell membrane plasmalemma contains the fluid cell body protoplasm. An electron-microscopic section demonstrates a three-layered structure Fig. The double lipid layer is infiltrated with proteins in a more or less mosaiclike fashion.

These protein molecules have multiple functions. They may form pores that serve the transmission of water and salts, or they may take part in regulatory functions as receptor proteins. The membrane proteins abutting on the outer side of the cell, and in part the watersoluble ends of the phospholipids, are covered with a thin film of sugar molecules carbohydrates. This film is called the glycocalyx. The chemi- Cytoplasm and Cell OrganellesThe cytoplasm surrounds the cell nucleus.

It is composed of the hyaloplasm or cytosol intracellular fluid , the cell organelles that perform certain cellular functions, and various cell inclusions, the metaplasm metabolic products of the cell. The intracellular fluid consists of an aqueous saline solution and proteins microtubules, microfilaments, intermediate filaments that determine the shape and mechanical solidity of the cell the so-called cytoskeleton.

The organelles vary in number according to the type and function of the cell containing them. It subdivides the interior of the cell into compartments and facilitates the intracellular transport of substances along its channels. Its large surface makes possible the rapid completion of specific metabolic processes e. In many places the endoplasmic reticulum is dotted with small granular structures, the ribosomes granular ER , that serve especially for the synthesis of proteins see below.

Granular endoplasmic reticulum is especially prominent in cells such as those of the pancreas. The endoplasmic reticulum is called smooth ER when ribosomes are absent, predominating especially in hormone-secreting cells.

All cells except red blood cells contain endoplasmic reticulum. RibosomesRibosomes Fig. They are not surrounded by elementary membrane. In the granular ER they are responsible for the production of exported proteins e. These create the amino acid chains for protein synthesis. Golgi ApparatusThe Golgi apparatus Fig. Lysosomes are also formed by this mechanism. The Golgi bodies have one side for uptake and one for discharge. Precursors of protein secretions migrate from the granular endoplasmic reticulum to the in-Structure of the Cell and Cell Organelles take side of the Golgi body, where they are loaded into transport vesicles and flushed out of the cell through the discharge side.

During this process, the membrane of the vesicle fuses with the cell membrane. Hence the renewal of the cell membrane is an important task of the Golgi apparatus.

LysosomesThe more or less spherical lysosomes Fig. They contain large quantities of enzymes, especially acid hydrolases and phosphatases, with the aid of which they can degrade ingested foreign material or the cell's own decaying organelles and return them in the form of metabolites for cellular metabolism recycling. The lysosome's membrane protects intact cells from uncontrolled activity of the lysosomal enzymes. In damaged cells, the liberated enzymes can contribute to tissue autolysis e.

CentriolesCentrioles Fig. Their walls are composed of microtubules, which are rigid, filamentous proteins. Centrioles play a major role in cell division, when they build threadlike spindle structures that are connected with the movement of the chromosomes. Evidently this process determines the polarity of the cell for the direction of a cell division. MitochondriaMitochondria Fig. Their walls consist of an inner and an outer elementary membrane.

The inner has multiple folds, and so possesses a large surface area. Mitochondria are the "power plants" of the cell, as they provide the energy necessary for all metabolic processes in the form of a universal biological fuel, adenosine triphosphate ATP.

The manufacture of ATP from the three basic materialsproteins, fats, and carbohydrates-takes place almost exclusively in the mitochondria Fig. ATP consists of three chemical substances linked to each other by high-energy bonds: a nitrogen-containing adenine, the sugar ribose, and three phosphate molecules adenosine triphosphate. When one phosphate molecule is split off, energy is liberated and ATP becomes ADP adenosine diphosphate , which, with added energy, can revert to adenosine triphosphate in the mitochondria.

From the mitochondria, ATP reaches the sites in the cell where energy is utilized. It is needed among other uses for the transport of materials through the cell membrane, for the synthesis of proteins and other cell components, and for muscle movement contraction.

However, there are cells with two nuclei some liver cells or greater numbers of nuclei, e.

The Human Body: An Introduction to Structure and Function

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Anatomy and Physiology delves into the structure and function of the human body and investigates how the integrated human body systems work. You might not require more time to spend to go to the book introduction as competently as search for them. Maybe you have knowledge that, people have look numerous times for their chosen novels like this lecture notes on human physiology fourth edition by john bray, but end up. Let us discuss more these notes. This is the reason for not using cotton buds to clean the ear canal because very frequently they merely push the shed skin and wax deep into the canal, impacting it and obstructing hearing. Pharm course regulations for B.

A number of complex processes and systems together form the human body. Zillions of cells and many organs work in coordination in the body to enable us to perform everyday functions. The human body and its anatomy can be complicated topics to study and revise. Therefore, we have come up with this list containing all the facts related to the human body. This list will help you memorize all the important body parts and their functions, for your exam. You can get the direct link to download the PDF at the end of the article! We hope you find this post on Functions and Anatomy of Human Body helpful.

The Organization and Structure of the Human Body

The brain is an amazing three-pound organ that controls all functions of the body, interprets information from the outside world, and embodies the essence of the mind and soul. Intelligence, creativity, emotion, and memory are a few of the many things governed by the brain. Protected within the skull, the brain is composed of the cerebrum, cerebellum, and brainstem.

Nurses need to understand the skin and its functions to identify and manage skin problems. This article comes with a self-assessment enabling you to test your knowledge after reading it. Nurses observe the skin of their patients daily and it is important they understand the skin so they can recognise problems when they arise.