Question: What Are The 7 Main Body Systems?

What body system can you live without?

You can still have a fairly normal life without one of your lungs, a kidney, your spleen, appendix, gall bladder, adenoids, tonsils, plus some of your lymph nodes, the fibula bones from each leg and six of your ribs..

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…

Which is the shortest bone in human body?

stapesOnce there, the sound waves vibrate three bones known as the ossicles, which are made up of the malleus, the incus, and the stapes. The stapes is the smallest bone in the human body.

What body part is only 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.

How do body parts move?

Muscles move body parts by contracting and then relaxing. Muscles can pull bones, but they can’t push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint.

What is the largest organ in the body?

The skin is the body’s largest organ.

What are the 13 systems in the human body?

They are Integumentary System, Skeletal System, Muscular System, Nervous System, Endocrine System, Cardiovascular System, Lymphatic System, Respiratory System, Digestive System, Urinary System, and Reproductive System (Female and Male).

Which part of the human body is like a closed first?

HeartHeart is likely to the size of one closed first .

Which is the largest gland in human body?

liverThe liver is the largest gland in the body and is an accessory organ of the disgestive system.

What’s the smallest organ in your body?

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. It’s not an organ like those in the abdominal cavity.

What are the functions of the 7 body systems?

Terms in this set (7)Nervous System. • Senses the outside world. … Skeletal System. • Provides support and shape. … Muscular System. • Allows movement. … Circulatory System/ Cardiovascular System. • Transports nutrients and wastes. … Respiratory System. • Gas exchange between body and air. … Excretory System. … Digestive System.

What are the 12 parts of the body?

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

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.

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 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.Nov 14, 2018

Which body part has no muscles?

Some human body parts have become useless over the past few million years. Useless body parts include the appendix, the tail bone, and the muscle fibers that produce goose bumps.

Which organs can you live without?

Seven body organs you can live withoutSpleen. This organ sits on the left side of the abdomen, towards the back under the ribs. … Stomach. … Reproductive organs. … Colon. … Gallbladder. … Appendix. … Kidneys.Apr 11, 2018

What are the 78 organs in the human body?

What Are the 78 Organs of the Human Body?Adrenal glands.Anus.Appendix.Bladder (urinary)Bones.Bone marrow (spongy part of the bone)Brain.Bronchi (tubes in the lungs)More items…•Mar 12, 2021

Which is the longest bone in the human body?

femurThe femur is one of the most researched bones in the human anatomy and forensic medicine. As the longest bone in the human body, it is well preserved in skeletal remains.

How do body parts work?

The human brain is the body’s control center, receiving and sending signals to other organs through the nervous system and through secreted hormones. It is responsible for our thoughts, feelings, memory storage and general perception of the world. The human heart is a responsible for pumping blood throughout our body.

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 …