Human Physiology
Human Physiology - Related Videos
05:33
Physiology of the Circulatory System - Concepts
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2019
Homeostasis Conditions in the external environment of an organism can change rapidly and drastically. To survive, organisms must maintain a fairly constant internal environment, which involves continuous regulation of temperature, pH, and other factors. This balanced state is known as homeostasis, which describes the processes by which organisms maintain their optimal internal conditions. To maintain homeostasis, organisms have developed structures with distinct functions. Physiology is the...
12:17
The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo
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Cited by 18 •
2017
We present a detailed method to study human placental physiology in vivo at term. The method combines blood sampling from the incoming and outgoing vessels on the maternal and fetal sides of the placenta with ultrasound measurements of volume blood flow and placental tissue sampling.
11:55
Physiological Correlates of Emotion Recognition
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2023
Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California The autonomic nervous system (ANS) controls the activity of the body's internal organs and regulates changes in their activity depending on the current environment. The vagus nerve, which innervates many of the internal organs, is an important part of the system. When our brain senses danger, vagal tone is inhibited, leading to a set of changes in the body designed to make us more prepared to fight or...
10:40
Analysis of Cap-binding Proteins in Human Cells Exposed to Physiological Oxygen Conditions
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Cited by 3 •
2016
Here, we present human cell culture protocols to analyze translation initiation factors that bind the 5' cap of mRNA during physiological oxygen conditions. This method utilizes an Agarose-linked m7GTP cap analog and is suitable to investigate cap-binding factors and their interacting partners.
07:26
Establishing a Physiologic Human Vascularized Micro-Tumor Model for Cancer Research
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Cited by 9 •
2023
This protocol presents a physiologically relevant tumor-on-a-chip model to perform high-throughput basic and translational human cancer research, advancing drug screening, disease modeling, and personalized medicine approaches with a description of loading, maintenance, and evaluation procedures.
FAQs
Feedback control allows the body to respond when internal conditions change. A physiological shift is detected, regulatory processes adjust the relevant function, and the resulting change can help restore balance. This principle connects many bodily activities, including hormonal regulation and circulation, and helps explain how normal function is maintained despite changing internal or external conditions.
Neural signaling and hormonal regulation provide complementary forms of coordination. Neural mechanisms support communication within integrated physiological processes, while hormones contribute to regulation across body functions. Studying both helps explain how organs and systems respond to changing conditions. Their combined action is especially important when interpreting coordinated responses in normal physiology, disease, or stress.
Circulation and gas exchange represent linked physiological processes rather than isolated functions. Gas exchange supplies information about how gases move through the body, while circulation provides the transport context needed to connect respiratory activity with other tissues and organs. Examining their coordination helps biology students interpret integrated function and understand how disruption in one process may affect overall physiology.
Clinical measurement translates physiological function into observable information that can be interpreted in health science and medicine. Measurements can help characterize normal function, identify changes associated with disease or injury, and evaluate responses to treatment. Because physiology examines coordinated processes, useful interpretation often considers findings in relation to multiple organs, systems, and regulatory mechanisms rather than treating one measurement in isolation.
Physiological knowledge is useful whenever researchers examine how the body responds to changing demands or conditions. Exercise, nutrition, and aging can each be studied through their effects on normal function and system coordination. This perspective supports comparisons between baseline and altered states, helping investigators describe adaptation, identify stress on body systems, and interpret changes without separating them from broader body function.
Physiology provides a framework for comparing expected body function with changes caused by disease or injury. Researchers can examine how disrupted regulation, altered organ activity, or impaired coordination affects the body as a whole. These comparisons support interpretation of clinical findings and contribute to treatment development by connecting observed problems with the physiological processes that may underlie them.