What is an organ in the body?

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. Human cells vary in size, but all are quite small.

Whats is the meaning of organs?

1a : a differentiated structure (such as a heart, kidney, leaf, or stem) consisting of cells and tissues and performing some specific function in an organism. b : bodily parts performing a function or cooperating in an activity the eyes and related structures that make up the visual organs.

What is an organ answer?

​Organ. = In biology, an organ (from the Latin “organum” meaning an instrument or tool) is a collection of tissues that structurally form a functional unit specialized to perform a particular function. Your heart, kidneys, and lungs are examples of organs.

What are the main body organs?

Humans have five vital organs that are essential for survival. These are the brain, heart, kidneys, liver and lungs. The human brain is the body’s control center, receiving and sending signals to other organs through the nervous system and through secreted hormones.

What is organ system Short answer?

An organ system is a group of organs that work together to perform a complex function. There are eleven organ systems in the human body. All of these are required for survival, either of the person or of the species.

Why are organs called organs?

Its earliest predecessors were built in ancient Greece in the 3rd century BC. The word organ is derived from the Ancient Greek ὄργανον (órganon), a generic term for an instrument or a tool, via the Latin organum, an instrument similar to a portative organ used in ancient Roman circus games.

What are organs called?

They are the heart, brain, kidneys, liver, and lungs. The locations of these five organs and several other internal organs are shown in Figure 10.4.

Is a mouth an organ?

The mouth and teeth are an organ that is vital to the well being of the individual. digestion.

What is not an organ?

There are other systems in the body that are not organ systems. For example, the Immune system protects the organism from infection, but it is not an organ system as it is not composed of organs. For example, the nose is in both the respiratory system and also is a sensory organ in the nervous system.

What are the major organs and their functions?

Among them, brain, heart, lungs, liver and kidneys are considered as the major or vital organs of the human body. The master organ, the brain, serves as CPU or control center, while beating of heart is considered as the sign of life in an individual.

What are the functions of organs?

In most cases, every organ in the organ system has only one specific physiologic function. But some organs may be a part of one or more organ systems. For example, liver is a part of digestive system but also plays a prominent role in excretion system. It helps metabolize drugs and other waste from body through urine.

What is the most important organ in the human body?

The most important organ in a human body is ‘Brain’. This organ is the center for controlling, sending and receiving body signals to the other organs. It takes the help of a nervous system.

What organs or body parts do we no longer need?

Humans no longer need tonsils, and they no longer need an appendix since it was originally for storing indigestible materials that a human swallowed, such as stones. Humans also no longer need to use their little toe for balance, and all such body parts that no longer have a function are called vestigial body parts.