Human Body Systems

Organs in the Thoracic Cavity
Organs in the thoracic cavity are protected by the rib cage. What are the organs in the thoracic cavity that need protection? Let us find out, which are the organs in the thoracic cavity with the help of this article.

Respiratory System Facts
This article is a compilation of many interesting respiratory system facts, that will amaze you. Keep reading to enhance your knowledge with these human respiratory system facts.

Organs on Left Side of Body
It is very interesting to know the organs on left side of the body. You may be a student of anatomy or trying to finish a school project or maybe just want to know for fun, this article will answer all your questions about organs on left side of body.

Organs of the Respiratory System
The organs of the respiratory system are important for the smooth functioning of the body. The human respiratory system organs are described in the following article.

Useless Facts About the Human Body
There are so many useless facts about the human body, that it would take you months to peruse through them all. So, here is a comprehensive collection of carefully selected, utterly useless facts about the human body.

Diagram of the Brain and its Functions
What is the brain? What does it look like? How does it function? If these are the questions swirling in your brain, then this article detailing the diagram of the brain and its functions will definitely whet your appetite regarding brain functions and parts.

Endocrine System Function
Do you know what are the endocrine systems functions? The gland system that produces chemical secretions that help to control the body's metabolic activity is known as the endocrine system. This article will help know more on endocrine system function.

Diagram of the Ear and its Functions
Are you looking to know more about diagram of the ear and its functions? The ear is another extraordinary organ of the house of wonders, that is, human body. The ear catches sound waves and converts it into impulses, that the brain interprets, making it understandable and helps the human body differentiate between different sounds. This article will help explain more on the diagram of the ear and its function.

Lymph Nodes in the Neck
Lymph nodes function as alarm systems and warn us about an impending infection. To know more about the lymph nodes in the neck, read on...

How Much Blood is in the Human Body
Blood is the bodily fluid that performs many important functions within the human body. Have you ever wondered how much blood is in the human body. Let us find out.

Pressure Points of the Body
There are pressure points on either side of the body. The American Heart Association has found 11 pressure points of the body. A pressure point in the body always has a corresponding pressure point on another part of the body.

Organs of Human Body
Human body is a complex machine and an example of an unique design. Let us learn about the organs of the human body to know ourselves better.

How do Humans Hear
As we all know, hearing is one of the five senses of the human body. Here in this article, I would present you with the basic insight about how do humans hear?

Systolic Blood Pressure
Systolic blood pressure is the maximum pressure in the arteries, towards the end of the cardiac cycle when the ventricles of the heart contract. To know more about systolic blood pressure, read on..

Effects of Epinephrine
Epinephrine or adrenaline as it is popularly known is a hormone secreted by the adrenal glands released in times of stress. It is used in the treatment of certain heart problems, asthma and allergic reactions. Effects of epinephrine on the body are phenomenal and wide ranging.

Suprachiasmatic Nucleus
Have you ever wondered how our body maintains the sleeping patterns and tunes our biological clock? The answer to this question is the Suprachiasmatic nucleus. It is the regulating center in the brain which controls our biological or circadian rhythms. It is a highly specialized biological clock which can be synchronized by external signals.

Anatomy of Shoulder
The anatomy of the human shoulder is complex, flaunting maximum mobility and a wide range of motion options. The shoulder is the prime executor of hand positions and aids in lifting objects. The main segment of the shoulder comprises the humerus and the scapula...

Lymph Nodes: Locations and Functions
Lymph nodes are the organs responsible for the normal functioning of the immune system. They are located in groups mostly in the neck, armpit, collarbone and groin.

Anatomy of Human Abdomen
The human abdomen extends from the thorax to the pelvis. The anatomy of the abdomen comprises all the internal organs between the thoracic diaphragm to the pelvic brim. At the lower end, the segment between the lumbosacral angle or the inter-vertebral disks and the pubic symphysis form the cavity walls...

Anatomy of Elbow
We would not have been able to perform most of our daily activities had it not been for the elbow. Elbow joint is one of the most important functional joints in the human body. It allows us to bend our arm and move or lift objects.

Diastolic Blood Pressure
Diastolic blood pressure is the measurement of blood pressure when the heart is at rest. The normal diastolic reading is 80 millimeters of mercury; a lower figure is called low diastolic pressure whereas a higher figure represents high diastolic pressure.

Anatomy of the Foot
Most vertebrates are characterized by feet as an important part of their anatomical structure. This appendage is not only responsible for locomotion, but also bears body weight, enabling better balance. The foot is ideally a separate, terminal segment of the leg...

Introduction to Human Skeletal System
The human skeletal system is a framework that gives proper shape and provides protection to the body. For an overview of the human skeletal system, read on...

How Does the Human Eye Work
The human eye is not only the organ with the most intricate anatomy, but also the most delicate. This organ detects light and empowers the sense of vision. Complex eyes, like those of humans, are able to distinguish shapes and colors within a large field of vision...

How does the Kidney Work
The kidney is a vital part of our body that performs many important functions. But has anyone ever wondered - how does the kidney work? Read ahead to know more...

What is Epinephrine
Ephinephrine, also known as adrenaline, is a hormone secreted by the adrenal gland. It is instrumental in generating a response to stressful or emergency situations.

Histology of Kidney
Kidney is an organ of the human body system that carries out the crucial and equally complicated task of purifying the blood. Let's find out more about it in the histology of kidney.

Anatomy of Neck
The anatomy of neck encompasses veins, arteries, nerves, larynx, thyroid glands, cervical spine and other muscular structures. Let's take a look at the anatomy of human neck.

Functions of Adrenal Gland
The adrenal glands produce many essential hormones of the body, which are required to carry out a number of metabolic activities. Know more about its structure and functions...

Anatomy of the Human Hand
The human anatomy comprises a number of complex systems. Each contributes to specific functions, to provide the body structure and its co-existence in the biosphere with much needed mobility. The anatomy of the human hand is a marvel, by way of construction as well as function...

Different Parts of the Human Ear
The anatomy of human ear comprises three major parts, namely, outer ear, middle ear and inner ear. Each part of the ear is again made up of different components. Let's understand in detail about the different parts of the human ear.

How does the Human Ear Work
The human ear acts as a transducer and converts the sound energy into nerve impulses, which is then perceived by the brain. The different parts of ear perform different functions...

The Spinal Column
The spinal column, commonly known as the backbone is one of the most vital parts of the human anatomy. It is a bony structure which covers and protects the spinal cord. Read this article for more information...

Foot Bones
Considering the overall usage of feet humans make in day-to-day life, it is very important for us to know some details about foot bones and their relevance.

How does the Circulatory System Work
Heart is the main organ of the circulatory or cardiovascular system that circulates blood via the blood vessels. Let's take a brief look on how the circulatory system works.

Overview of Endocrine System
The endocrine system is responsible for coordinating and regulating hormones that are produced by various organs of the body. Read on to know more about the endocrine system.

Facts about the Digestive System
Can you imagine that the length of digestive tract or the alimentary canal of an adult is about 30 feet. Read on to know more facts about the digestive system.

Role of Proteins in Living Organisms
The human anatomy is most intriguing. It is a complex system that is fed by the most amazing array of fuels like proteins. Complex proteins enable more than just the amino acid base…

Anatomy of the Nose: Human Nose Structure
Looking for information on structure of the human nose. Read this article to know about the structure and anatomy of the human nose.

Different Types of Noses
Some say the shape of a nose reflects the character of a person. Are you feeling nosey to know more about noses? Read on for some interesting bits about different types of noses and traits associated with the basic shape.

How Many Bones are in the Human Body
Human skeleton is composed of different types of bones. How many bones are in the human body? Read on to know...

Structure of the Human Respiratory System
If you are interested in understanding the structure and functioning of the human respiratory system, you must read on…

How Many Vertebrae does a Human Being Have
The vertebral column in human beings consists of irregularly shaped bones, known as vertebrae. To know about how many vertebrae does a human being have, read on...

Facts about Human Chromosomes
Human chromosomes are strands of DNA carrying all the important information about the human being. To look at some interesting facts about the human chromosomes, read on…

How does the Heart Work?
How does the heart work? Still wondering? Find your answer here …

Limbic System
Limbic system is the complex network of brain structures involved in controlling various body functions.

Human Body Pressure Points
A pressure point is an excellent location to take a person’s pulse. Let’s study and understand about human body pressure points here…

Human Muscular System
The human muscular system comprises of more than 600 muscles. Read more about them here.

Vitreous Body Anatomy
A brief introduction to the anatomy of the vitreous body.

How Do Muscles Function
All our movements, from running and jumping, to blinking and smiling are made by our muscles. From birth to death these muscles perform very useful work in the body.

How to Increase Blood Circulation with Systemic Enzymes
Taking Systemic enzymes is one of the alternative ways to increase blood circulation. However, there’re some factors that you need to understand further.

How Does Hair Actually Grow?
Learn how hair goes through 3 different stages as it grows - the anagen stage, the catagen stage, and the telogen stage. What happens in each? Read on to find out...

How Your Bones Grow
So you are wondering all about your bones and "HOW TO MAKE OUR BONES GROW" huh?? Well there are 206 bones in the human body. Although adults have 206 bones, that number actually decreases as we age. Certain bones fuse, joining individual bones into a fused single segment.