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Dynamic, learner-centered art

Our unique approach to visuals is designed to emphasize only the components most important in any given illustration. The art style is particularly aimed at focusing student learning through a powerful blend of traditional depictions and instructional innovations.

Much of the art in this book consists of black line illustrations. The strongest line is used to highlight the most important structures, and shading is used to show dimension and shape. Color is used sparingly to highlight and clarify the primary anatomical or functional point of the illustration. This technique is intended to draw students’ attention to the critical learning point in the illustration, without distraction from excessive gradients, shadows, and highlights. Full color is used when the structure or process requires it (for example, muscle diagrams and cardiovascular system illustrations).

The pharynx

A color illustration of the pharynx.
By highlighting the most important portions of the illustration, the artwork helps students focus on the most important points, without overwhelming them.

Micrographs

Micrograph magnifications have been calculated based on the objective provided with the image. If a micrograph was recorded at 40×, and the image was magnified an additional 2×, we calculated the final magnification of the micrograph to be 80×.

Please note that, when viewing the textbook electronically, the micrograph magnification provided in the text does not take into account the size and magnification of the screen on your electronic device. There may be some variation.

Sebaceous glands

A color illustration of the pharynx.
These glands secrete oils that lubricate and protect the skin. LM × 400. (Micrograph provided by the Regents of University of Michigan Medical School © 2012)

Learning resources

The following resources are (or will be) available in addition to main text:

  • PowerPoint slides: For each chapter, the illustrations are presented, one per slide, with their respective captions.
  • Pronunciation guide: A subset of the text’s key terms are presented with easy-to-follow phonetic transcriptions. For example, blastocyst is rendered as “blas'to-sist”

About our team

Senior contributing authors

J. Gordon Betts Tyler Junior College
Peter Desaix University of North Carolina at Chapel Hill
Eddie Johnson Central Oregon Community College
Jody E. Johnson Arapahoe Community College
Oksana Korol Aims Community College
Dean Kruse Portland Community College
Brandon Poe Springfield Technical Community College
James A. Wise Hampton University
Mark Womble Youngstown State University
Kelly A. Young California State University, Long Beach

Advisor

Robin J. Heyden

Contributing authors

Kim Aaronson Aquarius Institute; Triton College
Lopamudra Agarwal Augusta Technical College
Gary Allen Dalhousie University
Robert Allison McLennan Community College
Heather Armbruster Southern Union State Community College
Timothy Ballard University of North Carolina Wilmington
Matthew Barlow Eastern New Mexico University
William Blaker Furman University
Julie Bowers East Tennessee State University
Emily Bradshaw Florida Southern College
Nishi Bryska University of North Carolina, Charlotte
Susan Caley Opsal Illinois Valley Community College
Boyd Campbell Southwest College of Naturopathic Medicine and Health Sciences
Ann Caplea Walsh University
Marnie Chapman University of Alaska, Sitka
Barbara Christie-Pope Cornell College
Kenneth Crane Texarkana College
Maurice Culver Florida State College at Jacksonville
Heather Cushman Tacoma Community College
Noelle Cutter Molloy College
Lynnette Danzl-Tauer Rock Valley College
Jane Davis Aurora University
AnnMarie DelliPizzi Dominican College
Susan Dentel Washtenaw Community College
Pamela Dobbins Shelton State Community College
Patty Dolan Pacific Lutheran University
Sondra Dubowsky McLennan Community College
Peter Dukehart Three Rivers Community College
Ellen DuPré Central College
Elizabeth DuPriest Warner Pacific College
Pam Elf University of Minnesota
Sharon Ellerton Queensborough Community College
Carla Endres Utah State University - College of Eastern Utah: San Juan Campus
Myriam Feldman Lake Washington Institute of Technology; Cascadia Community College
Greg Fitch Avila University
Lynn Gargan Tarant County College
Michael Giangrande Oakland Community College
Chaya Gopalan St. Louis College of Pharmacy
Victor Greco Chattahoochee Technical College
Susanna Heinze Skagit Valley College
Ann Henninger Wartburg College
Dale Horeth Tidewater Community College
Michael Hortsch University of Michigan
Rosemary Hubbard Marymount University
Mark Hubley Prince George's Community College
Branko Jablanovic College of Lake County
Norman Johnson University of Massachusetts Amherst
Mark Jonasson North Arkansas College
Jeff Keyte College of Saint Mary
William Kleinelp Middlesex County College
Leigh Kleinert Grand Rapids Community College
Brenda Leady University of Toledo
John Lepri University of North Carolina, Greensboro
Sarah Leupen University of Maryland, Baltimore County
Lihua Liang Johns Hopkins University
Robert Mallet University of North Texas Health Science Center
Bruce Maring Daytona State College
Elisabeth Martin College of Lake County
Natalie Maxwell Carl Albert State College, Sallisaw
Julie May William Carey University
Debra McLaughlin University of Maryland University College
Nicholas Mitchell St. Bonaventure University
Shobhana Natarajan Brookhaven College
Phillip Nicotera St. Petersburg College
Mary Jane Niles University of San Francisco
Ikemefuna Nwosu Parkland College; Lake Land College
Betsy Ott Tyler Junior College
Ivan Paul John Wood Community College
Aaron Payette College of Southern Nevada
Scott Payne Kentucky Wesleyan College
Cameron Perkins South Georgia College
David Pfeiffer University of Alaska, Anchorage
Thomas Pilat Illinois Central College
Eileen Preston Tarrant County College
Mike Pyle Olivet Nazarene University
Robert Rawding Gannon University
Jason Schreer State University of New York at Potsdam
Laird Sheldahl Mt. Hood Community College
Brian Shmaefsky Lone Star College System
Douglas Sizemore Bevill State Community College
Susan Spencer Mount Hood Community College
Cynthia Standley University of Arizona
Robert Sullivan Marist College
Eric Sun Middle Georgia State College
Tom Swenson Ithaca College
Kathleen Tallman Azusa Pacific University
Rohinton Tarapore University of Pennsylvania
Elizabeth Tattersall Western Nevada College
Mark Thomas University of Northern Colorado
Janis Thompson Lorain County Community College
Rita Thrasher Pensacola State College
David Van Wylen St. Olaf College
Lynn Wandrey Mott Community College
Margaret Weck St. Louis College of Pharmacy
Kathleen Weiss George Fox University
Neil Westergaard Williston State College
David Wortham West Georgia Technical College
Umesh Yadav University of Texas Medical Branch
Tony Yates Oklahoma Baptist University
Justin York Glendale Community College
Cheri Zao North Idaho College
Elena Zoubina Bridgewater State University; Massasoit Community College
Shobhana Natarajan Alcon Laboratories, Inc.

Special thanks

OpenStax wishes to thank the Regents of University of Michigan Medical School for the use of their extensive micrograph collection. Many of the UM micrographs that appear in Anatomy and Physiology are interactive WebScopes, which students can explore by zooming in and out.

We also wish to thank the Open Learning Initiative at Carnegie Mellon University, with whom we shared and exchanged resources during the development of Anatomy and Physiology .

Questions & Answers

what usually cause blood pressurae
Abdullateef Reply
too much salt in the diet
Abuusu
older age
Abuusu
Even family history of high blood pressure
Abuusu
yes
Yaqub
too much salt in the diet
Yaqub
stress is the leading factor
Richard
smoking and too much alcohol consumption
Annu
obesity can also cause hypertension
Yaqub
high temperature of the body high salt of the body
Drs
how does the temperature affect the blood pressure?
Chidiebere
sex
Onavwie
What sex.?
Arshad
Male
Vikas
i mearnt gender,there's increased blood pressure in male than female
Onavwie
explain the cellular mechanism that produces tetanus and summation
Jenica Reply
epithelial cells polerity
jitendra Reply
tissues
Deepak
demonstrate the fluid replacement in the body
John Reply
the red blood cells is in the long bones or flat bones?
isbii
as age increases, the bone elongates .. will the joint vanish?
Sushruth Reply
what is anatomy?
Ivy Reply
structure
Allonda
discuss the organization of the body
Mwila Reply
explain the cellular mechanism that produces tetanus and summation
Chayanne Reply
explain why the muscle doesn't respond to low stimulus voltages
Chayanne
how would muscle contractions be affected if skeletal muscle fibers did have T - tubules?
Chayanne
tetanus is a disease caused by a bacteria causing rigidity and spasms of volutary muscles.. there is a prolonged construction of muscles caused by repeated stimuli
Marcus
muscles follow the "all or none law" when it comes to reponse to stimuli... muscle construction would have been affected because the T tubules are the conducting tracts that transport the or move the action potential in deporalizing the other parts of cell hence the muscle wont act as a single cell
Marcus
Skeletal muscle fibers do have t tubules that's how action potential propagates to spread throughout the muscle. Tetanus production is a phenomenon which is better explained in time rather then cellularly. Action potentials either separated in time or space are summated on the muscle and
Vikas
When the stimulus frequency hits more than 25 the individual twitches from the fibers summate and the muscle as a whole contracts. Cellulary, a good amount of calcium needs to be accumulated as is done by twitches adding together.
Vikas
what is the names of tarsus?
Fathia Reply
the region of the foot containing the seven tarsal bones.
Manja
the tarsal bones
Marcus
how the valves keep the blood moving in one direction?
Nonie Reply
They open and close during blood circulation,
Denis
Then valve open labb sound and valve close dabb sound
HARDIK
The valves for example the semilunar valves act to prevent back flow of blood from arteries to ventricles during ventricular diastole and help to maintain pressure on the major arteries .The aortic semilunar valve separate the left ventricle from opening of the aorta.
Denis
thank you
Nonie
😷
HARDIK
hi
Shakir
hello
Manja
Yes
kannan
what are estrogen and progesterone ? and their functions
Emmanuel
it's a body hormones and this is spread by women and it's can help to reproduction system...
HARDIK
yhe I also wana know
Lemasyanji
can we introduce ourselves and share contact?
Emmanuel
🤔
HARDIK
thanks
Emmanuel
i want ti study medicine.. what are the main course?
Emmanuel
Progesterone helps to maintain the endometrium wall which is later shed out of the body during the menstrual cycle
Smisha
Estrogen is another ovarian hormone which helps the primary follicle to develop into graafian follicle and cause ovulation
Smisha
what is decstro cardiac
priyanshi
Right sided heart in a guy
Vikas
Dextrocardia is a condition where the. heart lies in the right side of the thorax instead of the left and it occurs when the heart loops to the left instead of the right.
Idoko
hii
Vikas
can any talk me a scope of anatomy and physiology
Vikas
please
Vikas
It has valves that OPEN and close during circulation
xiao
What does the Thyroid gland means
Solomon Reply
It's a gland in your neck produces thyroid hormone maintains body metabolism
Vikas
how many joints are in the human foot?
Roghayeh Reply
I believe that is 33 joints
Ana
26 bones and 33 joints.
Amin
thank u.
Roghayeh
thanks
antouman
what is the nerve supply of orbicularis oculi?
Juliet Reply
buccal branch of the facial nerve (cranial nerve VII).
Jeremiah
thanks a lot
antouman
water is the compound formed when oxygen and hydrogen reacts together
Kabwe
what is chordinae tendinae
Aryan
Structures that keep the heart valves shut together n its "chordae"
Vikas
what is agglutination
Aryan
please can challenging questions be given out, and not what we already know, feel free to share hidden knowledge
barbie
people have usually have 2 kidneys.how are these located?
Roghayeh
what is the Function of Thyroid gland in our body
Fahim Reply
regulates body metabolic rate
Arif
describe blood cells
Sumanraj Reply
1.we have white blood 2.red blood. Blood I a platelate 3.plasma
UMAR
right
chimdinma

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Source:  OpenStax, Anatomy & Physiology. OpenStax CNX. Feb 04, 2016 Download for free at http://legacy.cnx.org/content/col11496/1.8
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