The human body essay

Get Full Essay Get access to this section to get all help you need with your essay and educational issues. Get Access The Human Body Essay Sample The seven organizational approaches to studying the human body are body planes and body directions, body cavities, quadrants and regions, anatomy and physiology, microscopic to macroscopic, body systems and medical specialties. Body planes and body directions are the division of the body into sections from front to back, right and left, and top and bottom. These sections are called the mid-sagittal plane, the coronal plane, and the transverse plane.

The human body essay

In order for cells to survive, they must exchange materials like water, nutrients, and gases CO2 and O2. These molecules move in and out of cells through a plasma membrane that is composed of a mosaic of protein molecules moving around in a fluid bilayer of phospholipids fluid mosaic model.

This composition creates an environment that regulates the movement of materials into and out of the cell. There are two primary ways molecules move through the cell membrane: Active transport requires a cell to use energy usually in the form of ATP to move a molecule against a concentration gradient.

During passive transport, the cell does not expend energy to move materials across the cell membrane. Diffusion is defined as the movement of molecules from a region of high concentration to a low concentration without the assistance of a transport protein.

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Molecules are propelled by kinetic energy the energy of motion. The botanist, Robert Brown, was the first person to observe the random movement of small particles which is now defined as the Brownian movement.

Several factors can influence the rate of diffusion. These include the steepness of the concentration gradient, temperature, and size of the molecule. Molecules will move by diffusion until they reach a state of dynamic equilibrium, equal movement of molecules in both directions.

A major advance in the field of diffusion came from the work of the German physiologist Adolf Eugen Fick Graham's work on the diffusion of salt in water stimulated Fick to develop a mathematical framework for diffusion phenomena using the analogy between Fourier's law of thermal conduction or Ohm's law of electric conduction and diffusion.

He postulated that the flux of salt occurring in a unit of time between two infinitesimal test volumes of space filled with solutions of the same salt but with different salt concentration must be directly proportional to the concentration difference and inversely proportional to the distance between the test volumes.

In addition, Svante Arrhenius, described the temperature dependence of reaction rates and diffusivities, generally referred to as Arrhenius Law.

He proposed this relation in his paper of to describe reactions rate of cane sugar as well as reactionPublished: Mon, 04 Jun In this essay I will be looking at the human body and how it is organised, from the simple cell to how the body systems co-operate with each other and .

The Human Body will provide a glimpse of: s the billion new red blood cells the body generates each morning; s the 40 yards of new hair that sprouts every day; s a human egg nestling into the folds of a fallopian tube; s a thermal image of a child riding a bicycle; s a trip on a tomato from mouth to stomach; s babies able to hold their breath under water, and s the inside of an ear as cells actually dance to music.

The Human Body Essay Sample

- The human body is an incredible system that is capable of working a multitude of diverse thought functions as well as muscle actions. Besides the bodies’ proficiency to move and reason, the human body also is comprised of the five senses that are involved in everyday life and even nightly life.

Systems of the Human Body Essay - The human body is very complex. It is like a job. You have to do a million things in one day to make it through the day. The body uses nine systems to do all of those jobs. They all have separate functions, but some work together.

The human body essay

Each system is also made up of organs. The human body has been regarded as a machine which has to do certain kinds of work or perform certain functions.

The human body is very complex. It is like a job. You have to do a million things in one day to make it through the day. The body uses nine systems to do all of those jobs. They all have separate functions, but some work together. Each system is also made up of organs.

There are many ways to care.

Human body - New York Essays