Question: What Are The 11 Main Body Systems?

What are the 5 major organ systems?

These five systems are: circulatory, respiratory, skeleton, digestive, and nervous.The circulatory system is needed for the flow of blood, oxygen, and nutrients throughout the entire body:The respiratory system breathes life into the body;More items…•.

What is the smallest organ in your body?

pineal glandWhat’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 body part can only be found on humans?

Found only in humans, the hyoid bone is the only bone in the body that is not connected to any other, and is the foundation of speech. This horseshoe-shaped bone in the throat is situated between the chin and the thyroid cartilage.

What are the 10 main body systems?

Ten major systems include the skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and the reproductive system. Body functions are the physiological or psychological functions of body systems.

What is the largest organ in the body?

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 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 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 is the most important system in your body?

nervous systemWhile 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 the 12 body systems?

These different body systems include the skeletal, nervous, muscular, respiratory, endocrine, immune, cardiovascular/circulatory, urinary, integumentary, reproductive, and digestive systems.

Which is the most sensitive organ in our body?

Human skinHuman skin is the most sensitive organ of the human body. It has been reported that One square centimeter of skin has pain receptor 150, at least 25 which can sense light touch and 2 number of heat receptors.

What organs belong to what system?

Major Organ SystemsSystemOrgans in the SystemCardiovascularHeart Blood vessels (arteries, capillaries, veins)RespiratoryNose Mouth Pharynx Larynx Trachea Bronchi LungsNervousBrain Spinal cord Nerves (both those that carry impulses to the brain and those that carry impulses from the brain to muscles and organs)8 more rows

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 strongest muscle in the human body?

masseterThe strongest muscle based on its weight is the masseter. With all muscles of the jaw working together it can close the teeth with a force as great as 55 pounds (25 kilograms) on the incisors or 200 pounds (90.7 kilograms) on the molars. The uterus sits in the lower pelvic region.

What is the hardest substance in the human body?

Tooth enamelTooth enamel is the hardest substance in the body. The shiny, white enamel that covers your teeth is even stronger than bone.

Is blood an organ?

Technically, blood is a transport liquid pumped by the heart (or an equivalent structure) to all parts of the body, after which it is returned to the heart to repeat the process. 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.

Are there 11 or 12 systems in the human body?

There are 11 major organ systems in the human organism. They are the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems.

What is the easiest body system to learn?

The system with the fewest parts to learn is most likely the Urinary system. There are fewer parts and fewer terms to learn.