Question: What Is An Organ?

Is the tongue an organ?

The tongue is a muscular organ in the mouth.

The tongue is covered with moist, pink tissue called mucosa.

Tiny bumps called papillae give the tongue its rough texture.

Thousands of taste buds cover the surfaces of the papillae..

Is a knee an organ?

Summary: Researchers suggest that viewing the knee as an organ in the same way doctors examine the heart for heart disease could lead to better therapies for treating osteoarthritis, one of the five leading causes of disability in elderly men and women.

What is an organ in biology?

An organ is a group of different tissues that work together to do a particular job. Organs are grouped together into organ systems. Examples of organ systems include the circulatory system and the digestive system.

What is the best definition of an organ?

An organ is a self-contained group of tissues that performs a specific function in the body. The heart, liver, and stomach are examples of organs in humans. The word organ comes from the Latin organum, which means “instrument”. Organs are found in most animals and plants. …

How many organs are there in the human body?

Altogether there are seventy-eight main organs within the human body. These organs work in coordination to give rise to several organ systems. Among these 78 organs, five organs are considered as vital for survival. These include the heart, brain, kidneys, liver and lungs.

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.

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.

Is red blood cell a organ?

Areas covered: Here we provocatively comment on the potential classification of red blood cells – by far the most abundant host cell in the human body (~ 83% of the total cells) – as an organ involved in many functions beyond gas transport.

How is blood created?

The bone marrow produces stem cells, the building blocks that the body uses to make the different blood cells – red cells, white cells and platelets. The erythropoietin sends a message to the stem cells telling more of them to develop into red blood cells, rather than white cells or platelets.

Is brain an organ?

The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel, and enables us to have memories and feelings—all the things that make us human.

What is the smallest organ?

What’s the smallest organ in the human body? You’ll find the pineal gland near the center of the brain, in a groove between the hemispheres.

Which is the heaviest part of human body?

HeadThe Head is the Heaviest Part of the Human Body.

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.

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.

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’s the largest organ?

Skin is the human body’s largest organ. Body organs aren’t all internal like the brain or the heart. There’s one we wear on the outside. Skin is our largest organ—adults carry some 8 pounds (3.6 kilograms) and 22 square feet (2 square meters) of it.

Is a heart an organ?

Your heart is actually a muscular organ. An organ is a group of tissues that work together to perform a specific function. In the case of your heart, this function is pumping blood throughout your body. Additionally, the heart is largely made up of a type of muscle tissue called cardiac muscle.

What is an organ in the body?

Organs are the body’s recognizable structures (for example, the heart, lungs, liver, eyes, and stomach) that perform specific functions. An organ is made of several types of tissue and therefore several types of cells.

What is the most important organ in a human body?

While your heart is a vital organ, the brain (and the nervous system that attaches to the brain) make up the most critical organ system in the human body. The human nervous system is responsible for coordinating every movement and action your body makes.

What are humans made of?

Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium. All 11 are necessary for life.

What are the organs of animals?

Unit 3: Organs and systems of the bodySystem of the BodyOrgans in the BodyDigestivestomach, liver, intestine, pancreasCirculatoryheart, blood vesselsRespiratorymuzzle, windpipe, lungsUrinarykidneys, bladder5 more rows