Home Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture Money Videos
physiology
Table of Contents
References & Edit History Related Topics
Images
adenosine triphosphate; physiology William Harvey: theory of the circulation of blood glycolysis knee-jerk reflex autonomic nervous system steroid hormones Neurohormones are released from neurosecretory nerve cells. These nerve cells are considered true endocrine cells because they produce and secrete hormones that enter the circulation to reach their target cells. molecular view of the cell membrane
For Students
physiology summary
Quizzes
greylag. Flock of Greylag geese during their winter migration at Bosque del Apache National Refugee, New Mexico. greylag goose (Anser anser)
Biology Bonanza
Muscles of facial expression, human anatomy, (Netter replacement project - SSC). Human face, human head.
Characteristics of the Human Body
Related Questions
Read Next
Red blood cells in vein, circulatory system
What Was the Science Behind Medical Bloodletting?
Discover
After a perfect launch, spectators try to catch a last glimpse of Space Shuttle Columbia, barely visible at the top end of the twisted column of smoke.
7 Accidents and Disasters in Spaceflight History
Solar eclipse of the sun.
The Sun Was Eaten: 6 Ways Cultures Have Explained Eclipses
Young men throw balloons and glitter from above the mosque at the celebration Eid Al-Fitr after prayers playing with balloons outside of Al-seddeeq mosque, Al-Mansourah, Egypt. 17 July 2015.
Eid al-Fitr
In this aerial photo, structures are damaged and destroyed October 15, 2005 in Balakot, Pakistan. It is estimated that 90% of the city of Balakot was leveled by the earthquake. The death toll in the 7.6 magnitude earthquake that struck northern Pakistan on October 8, 2005 is believed to be 38,000 with at least 1,300 more dead in Indian Kashmir. SEE CONTENT NOTES.
6 of the World’s Deadliest Natural Disasters
Vietnam War. U.S. President Lyndon B. Johnson awards the Distinguished Service Cross to First Lieutenant Marty A. Hammer, during a visit to military personnel, Cam Ranh Bay, South Vietnam, October 26, 1966. President Johnson
Vietnam War Timeline
Julius Caesar in full Gaius Julius Caesar (100? BCE-44 BCE) statue in Rimini, Italy. Roman general and statesman and dictator
The Time Julius Caesar Was Captured by Pirates
Stylish light blue jeans on wooden background, closeup of inset pocket
Why Do Jeans Have That Tiny Pocket?

Many important advances in surgery and medicine have been based on the physiology of circulation, which was first studied in 1628. The measurement of blood pressure, for example, was introduced on a practicable basis late in the 19th century and has become an important part of medical diagnosis. The physiology of circulation is concerned with the origin of blood pressure in the force of the heartbeat and the regulation of heart rate, blood pressure, and the flow of blood. Variations in heart rate that led Aristotle to consider the heart as the seat of the emotions (an idea later proven ...(100 of 4828 words)

Access the full article
Help support true facts by becoming a member.