Relationship between structure and function in the human body

How Structure Determines Function | Anatomy & Physiology

relationship between structure and function in the human body

Before you begin to study the different structures and functions of the human body, it is helpful to consider its basic architecture; that is, how its smallest parts are. The human body is a complex system with structures ranging from cells to organ systems and functions ranging from waste removal to. In this human realm, structure/function relationships are often more obvious and easier . Anatomy of the human hand, from Gray's Anatomy (source: Wikipedia).

Current advances in physiology usually depend on carefully designed laboratory experiments that reveal the functions of the many structures and chemical compounds that make up the human body. Like anatomists, physiologists typically specialize in a particular branch of physiology. For example, neurophysiology is the study of the brain, spinal cord, and nerves and how these work together to perform functions as complex and diverse as vision, movement, and thinking.

Physiologists may work from the organ level exploring, for example, what different parts of the brain does to the molecular level such as exploring how an electrochemical signal travels along nerves.

Basic Structures & Functions of the Human Body - Video & Lesson Transcript |

Form is closely related to function in all living things. For example, the thin flap of your eyelid can snap down to clear away dust particles and almost instantaneously slide back up to allow you to see again.

At the microscopic level, the arrangement and function of the nerves and muscles that serve the eyelid allow for its quick action and retreat.

relationship between structure and function in the human body

At a smaller level of analysis, the function of these nerves and muscles likewise relies on the interactions of specific molecules and ions.

Even the three-dimensional structure of certain molecules is essential to their function. Your study of anatomy and physiology will make more sense if you continually relate the form of the structures you are studying to their function.

In fact, it can be somewhat frustrating to attempt to study anatomy without an understanding of the physiology that a body structure supports.

Imagine, for example, trying to appreciate the unique arrangement of the bones of the human hand if you had no conception of the function of the hand. Fortunately, your understanding of how the human hand manipulates tools—from pens to cell phones—helps you appreciate the unique alignment of the thumb in opposition to the four fingers, making your hand a structure that allows you to pinch and grasp objects and type text messages.

In the past, anatomy has primarily been studied via observing injuries, and later by the dissection of anatomical structures of cadavers, but in the past century, computer-assisted imaging techniques have allowed clinicians to look inside the living body. Human physiology is the scientific study of the chemistry and physics of the structures of the body. Physiology explains how the structures of the body work together to maintain life.

It is difficult to study structure anatomy without knowledge of function physiology and vice versa.

  • What Is the Difference Between Structure & Function as It Relates to Anatomy & Physiology?

The two disciplines are typically studied together because form and function are closely related in all living things. Exercises True or False?

What is an example of a relationship between structure and function in the human body?

A scientist wants to study how the body uses foods and fluids during a marathon run is mostly likely an anatomist. Name at least three ways to use the information you learn about anatomy and physiology. An understanding of physiology is essential for any career in the health professions. The human body is a complex system with structures ranging from cells to organ systems and functions ranging from waste removal to protection and defense.

The structures and functions are dedicated to maintaining a state of health in the body. Comparing the Human Body and Cities Think about a city you visit frequently and the complex structure of that city.

Basic Structures & Functions of the Human Body

You might consider the buildings, the streets, or all the rooms within those buildings, or people within those rooms. Now think about the roadways, waterways, sewers, parks, power plants, even the railways that go in and out of the city moving millions of people a day to their jobs and homes at night.

Human Body Systems and Functions

A complex city needs a highly complex system of government administration to attend to all the demands placed upon it. There is a complex web of discrete units within that administration system to attend to each of these needs at once, functioning at their designated roles but cooperating together at the same time - law enforcement, traffic and transportation guidance, sewer and garbage pickup, as well as education and power systems.

Let's think about our bodies in the context of a system.

relationship between structure and function in the human body

In the same way, the human body functions a lot like a city, with separate units designated for specific functions, but all working together for a common purpose. A city as an example of a system.

relationship between structure and function in the human body

Structures of the Human Body Most people are familiar with the functions of the major organs in the human body, but cells are where the magic happens. Starting from a single cell, the human organism ends up with over different kinds of cells.