What Are The Major Organs And Their Functions?

What is an example of an organ?

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 fastest thing in the human body?

The eye: the fastest muscle in the human body.

What are major 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 are the 11 major organ systems of the human body?

The 11 organ systems include the integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems.

What is the hardest body system to learn?

4 The endocrine system and the nervous system are generally considered two of the most complicated systems in the body.

What is your 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.

What are the 78 organs in the human body?

Among these 78 organs, five organs are considered as vital for survival. These include the heart, brain, kidneys, liver and lungs….Types of Organs in a Human Body.Adrenal GlandsBladderHeartKidneysPancreasPharynxThymus GlandTongueTestesSeminal vesicles13 more columns

What is the most useless organ in the body?

appendixThe appendix may be the most commonly known useless organ. While plant-eating vertebrates still rely on their appendix to help process plants, the organ is not part of the human digestive system.

What organs do we not need?

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 are the 11 major organ systems and their main functions?

The main systems of the human body are:Circulatory system / Cardiovascular system: … Digestive system and Excretory system: … Endocrine system: … Integumentary system / Exocrine system: … Immune system and lymphatic system: … Muscular system: … Nervous system: … Renal system and Urinary system.More items…

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 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.

Why is anatomy so difficult?

Originally Answered: Why anatomy and physiology is so hard? Because you are a complex structural being. Because you are a complex structural being. Firstly, You must understand that the Human Body is a Complex System and no Complex System worth understanding can be at thought to be simple or easy to understand.

What is the most difficult class in nursing school?

Hardest Nursing School ClassesPathophysiology. In this course, students learn how different anatomical systems work and how diseases or injuries affect these systems. … Pharmacology. … Medical Surgical 1 (also known as Adult Health 1) … Evidence-Based Practice.

What is the most important organ in the 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 is the name of organ?

Vital Organs They are the heart, brain, kidneys, liver, and lungs. The locations of these five organs and several other internal organs are shown in the figure below.

What is the easiest body system to learn?

integumentaryIn this group, we seem to universally agree on starting with basic chemistry, cells, and tissues, then when we get to the organ systems, beginning with the integumentary and skeletal systems. Integumentary is probably the easiest of all for most students.

What are the top 10 body organs?

Top 10: What are the heaviest organs in the human body?Liver. Liver © iStock. … Brain. Brain © iStock. Average weight: 1,500g. … Lungs. Lung © iStock. Average weight: 1,300g. … Heart. Heart © iStock. Average weight: 300g. … Kidneys. Kidneys © iStock. Average weight: 260g (pair) … Spleen. Spleen © iStock. Average weight: 175g. … Pancreas. Pancreas © iStock. Average weight: 70g. … Thyroid.More items…