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.Know More
The QL muscle has four sides and tapers somewhat at the top. Its functions are to support the stability and the movement of the vertebrae and the pelvis. It also aids the body in breathing by fixing the 12th rib during an expiration.
The QL muscle has been implicated in some patients' episodes of lower back pain.Learn more in Human Anatomy
The primary function of the respiratory system is to provide oxygen to every part of the body through the process of inhaling oxygen and exhaling carbon dioxide. The respiratory system consists of tissues and organs inside the body that allow people to breathe. This system includes blood vessels, the lungs, airways and certain muscles. The major airways of the respiratory system include the nose, windpipe, mouth, bronchial tubes and larynx.Full Answer >
The heart is part of the cardiovascular system and works like a pump to move blood throughout the body. The cardiovascular system also consists of the veins, arteries and capillaries that route blood throughout the body, according to WebMD.Full Answer >
"Q" represents rational numbers because all rational numbers are a quotient. This means that each rational number can be expressed by a fraction with a denominator other than zero and a numerator that is a whole number. Whole numbers, fractions and decimals are all rational numbers.Full Answer >
Dictionary.com states that "thorax" indicates the part of the torso in humans or in higher vertebrates that is situated between the abdomen and the neck. The thorax, or chest, includes the cavity where the lungs and heart are located. The ribs, sternum and some vertebrae that surround the cavity.Full Answer >