What Are The 7 Body Systems?

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..

How many organs does a person have?

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.

What are the 5 major organ systems?

Five Major Organ Systems of the BodyNervous System. The nervous system sends signals throughout the body to control function and movement. … Endocrine System. While the nervous system relies mostly on electrical signals for messaging, the endocrine system uses chemical messengers. … Cardiovascular System. … Respiratory System. … Digestive System.

What is the most important organ in the human body?

The brainAnatomy & Function The brain is arguably the most important organ in the human body.

What is the hardest substance in the human body?

1. Tooth enamel is the hardest substance in the body. The shiny, white enamel that covers your teeth is even stronger than bone. This resilient surface is 96 percent mineral, the highest percentage of any tissue in your body – making it durable and damage-resistant.

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 are the 14 body systems?

These 14 systems are the Musculoskeletal system; Organs of Special Sense (optical); Auditory; Infectious Diseases, Immune Disorders, and Nutritional Deficiencies; Respiratory system; Cardiovascular system; Digestive system; Genitourinary System; Hemic and Lymphatic system; Skin; Endocrine system; Neurological …

What 3 body systems work together?

Internal Temperatures. Similarly, the cardiovascular, integumentary (skin and associated structures), respiratory, and muscular systems work together to help the body maintain a stable internal temperature.

What are the 13 major organs in 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 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 is the most sensitive organ in our body?

Skin is the largest organ of the human body. It is an impressive and vital organ….Answer: Skin.Related Questions & AnswersWhat Is TurgidityWhat Is The Symbol For Molarity4 more rows

What are the 3 most important body systems?

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 organ system is the skin in?

integumentary systemThe integumentary system is an organ system consisting of the skin, hair, nails, and exocrine glands.

What are the 12 systems of the body?

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

How is the human body similar to our society?

Functionalists see society as being similar to the human body. In the same way the body relies on the heart to pump blood round to other vital organs like the lungs and brain. Functionalists see society as being constructed of different inter-dependent components like the family and education.