Question: What Is The Smallest Organ In Human Body?

How long is the human colon?

The large intestine (colon or large bowel) is about 5 feet long and about 3 inches in diameter.

The colon absorbs water from wastes, creating stool.

As stool enters the rectum, nerves there create the urge to defecate..

How long are your intestines?

The takeaway. Together your small and large intestines are about 15 feet or more in length. According to a 2014 study , the total surface area of your intestines is about half the size of a badminton court.

What is the smallest organ in the digestive system?

The small intestine is where most digestion takes place. Food is broken down into smaller and smaller particles.

Is blood an organ?

Blood is both a tissue and a fluid. It is a tissue because it is a collection of similar specialized cells that serve particular functions. These cells are suspended in a liquid matrix (plasma), which makes the blood a fluid.

How blood is formed in our body?

Red blood cells are formed in the red bone marrow of bones. Stem cells in the red bone marrow are called hemocytoblasts. They give rise to all of the formed elements in blood. If a stem cell commits to becoming a cell called a proerythroblast, it will develop into a new red blood cell.

Is hair an organ?

Hair is an accessory organ of the skin made of columns of tightly packed dead keratinocytes found in most regions of the body. … The hair shaft consists of the part of the hair that is found outside of the skin. The hair shaft and root are made of 3 distinct layers of cells: the cuticle, cortex, and medulla.

How many organs are in the human body?

In the study of anatomy, the term viscus refers to an internal organ. Viscera is the plural form. The number of organs in any organism depends on which precise definition of the term one uses. By one widely used definition, 79 organs have been identified in the human body.

Is brain an organ?

The brain is an amazing three-pound organ that controls all functions of the body, interprets information from the outside world, and embodies the essence of the mind and soul. Intelligence, creativity, emotion, and memory are a few of the many things governed by the brain.

What are the 12 organs of the body?

They are the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems. Only the reproductive system varies significantly between males and females.

What are the 7 Major organs of the human body?

Some of the easily recognisable internal organs and their associated functions are:The brain. The brain is the control centre of the nervous system and is located within the skull. … The lungs. … The liver. … The bladder. … The kidneys. … The heart. … The stomach. … The intestines.

Who named all the body parts?

When the ancient Greeks were naming body parts, they were probably trying to give them names that were easy to remember, says Mary Fissell, a professor in the Department of the History of Medicine at Johns Hopkins.

What organs can you live without?

Here are some of the “non-vital organs”.Spleen. This organ sits on the left side of the abdomen, towards the back under the ribs. … Stomach. … Reproductive organs. … Colon. … Gallbladder. … Appendix. … Kidneys.

What is the hardest working organ in your body?

HeartHeart. Every cell in the body depends on this muscle, the body’s hardest-working organ.

What is the largest organ in human body?

The skin is the body’s largest organ.