Quick Answer: Which Body Part Is Only Found On Humans?

What body part is unique to humans?

Human ancestors evolved a descended larynx roughly 350,000 years ago.

We also possess a descended hyoid bone — this horseshoe-shaped bone below the tongue, unique in that it is not attached to any other bones in the body, allows us to articulate words when speaking..

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.

Which organ do we not need?

appendixVestigial organs are parts of the body that once had a function but are now more-or-less useless. Probably the most famous example is the appendix, though it is now an open question whether the appendix is really vestigial.

What are the 13 systems in the human body?

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…

Who named all the body parts?

When the ancient Greeks were naming body parts, they were probably trying to give them names that were easy to remember, says Mary Fissell, a professor in the Department of the History of Medicine at Johns Hopkins.

What is the most useless body part?

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 are humans best at?

Humans are the best throwers on the planet, no other animal can throw with the power and accuracy a human can. We are also very adept at tracking objects in motion and realizing where they will be ahead of time (So we are also great at catching things as well).

What makes people human?

One of the key characteristics that makes us human appears to be that we can think about alternative futures and make deliberate choices accordingly. Creatures without such a capacity cannot be bound into a social contract and take moral responsibility.

What organs can I 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.

What is the longest thing in your body?

The longest bone in the human body is the femur. The largest artery is the aorta and the largest vein is the inferior vena cava. The largest internal organ (by mass) is the liver, with an average of 1.6 kilograms (3.5 pounds). The largest external organ, which is also the largest organ in general, is the skin.

What is the smallest organ?

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.