The only human body part that does not grow after birth is the ossicular chain, which is composed of three small bones and is located in the middle ear. These bones are also the smallest lightest bones in the human body. Each bone is smaller than a grain of rice. The stapes is the smallest and is only 2.8 millimeters or 0.11 inch long.Continue Reading
Attached to the eardrum, these tiny bones work together to transmit vibrations from sound waves to the fluid in the inner ear. They are found in the middle ears of all mammals. These bones, named after the objects they resemble, are the malleus, or hammer, the incus, or anvil, and the stapes, or stirrup.
A common misconception is that the eyes do not grow from infancy. However, the human eye grows about one-third in size. At birth, the eyeball is 16 millimeters wide, but it grows to 23 millimeters in width by the age of 3 years. Eyes reach their maximum size at puberty, growing to be approximately 24 millimeters wide each.
Humans are born with about 300 bones. However, because some bones fuse together in the course of development, the adult human body has only 206 bones.Learn more about Human Anatomy
The body parts are grouped into several systems, including the nervous system of the brain, spinal cord and nerves that control the body, its muscles and glands; and the skeletal system of the bones and joints that support body structure, create blood cells and store minerals. Other systems include the cardiovascular, respiratory, digestive and reproductive systems.Full Answer >
Humans have many body parts including 206 bones and more than 600 muscles. Scientists discovered a new body part, a ligament in the knee now called anterolateral ligament in 2013 at the University of Leuven in Belgium.Full Answer >
All body parts of a normal, healthy human increase in size after birth through maturity, according to the Encyclopedia Britannica. A common myth states that the eye is at its full size at birth, but in actuality, the eye grows for some time after. KidsHealth points out that refractive changes that occur during childhood are an easily identified indicator of this growth.Full Answer >
One body part that starts with the letter "Q" is the quadratus lumborum muscle. This muscle is found in the lower back behind the kidneys, the pancreas and the horizontal part of the duodenum, which is the first section of the small intestine. It's also called the QL muscle.Full Answer >