Lungs: Anatomy Lungs are the main organs of the respiratory system. Lungs are paired viscera located in the thoracic cavity and are composed of spongy tissue. The primary function of the lungs is to oxygenate blood and eliminate CO2. To perform this function, the lungs need to be able to ...
The Respiratory System ANATOMY OF THE RESPIRATORY SYSTEM The Respiratory Tract: The Lungs Alveoli TABLE OF COCO
If the inner surface of the lungs could be stretched out flat, they would occupy an area of around 80 to 100 square meters --- about the size of half of a tennis court! The lungs also provide us with the air we need in order to speak, laugh at jokes, and sing. Anatomy of the ...
respiratory system of a grasshopper The respiratory system of a grasshopper, showing spiracles in the thorax and abdomen. Encyclopædia Britannica, Inc. diaphragm; breathing The diaphragm contracts and relaxes, forcing air in and out of the lungs. ...
What Do the Lungs Do? The main function of the lungs is to exchange oxygen and carbon dioxide in the body. When a person breathes in, oxygen travels down the back of the throat and into thetrachea, the windpipe. The trachea branches into twobronchial tubes, with one tube going to each...
The pancreas i s long and narrow, bound with the mesentery to the anterior edge of the duodenum . The saclike lungs are situated in dorsal part of the coelom, extending from th e pectoral girdle to the pelvic girdle, and covered with peritoneum on the ventra l surface. The trachea is ...
while microscopic anatomy is concerned with the study of structural units small enough to be seen only with a lightmicroscope.Dissectionis basic to all anatomical research. The earliest record of its use was made by the Greeks, andTheophrastuscalled dissection “anatomy,” fromana temnein, meaning...
The human respiratory system is comprised of special organs designed to take in oxygen for the air we breathe and expel carbon monoxide, keeping us alive. Let's take a closer look at these organs and explore respiratory physiology in more detail.
The human heart, a marvel of biological engineering, is a muscular organ roughly the size of a closed fist. It is located between the lungs, slightly to the left of the center, and rests on the diaphragm. The heart is the epicenter of the circulatory system, supplying the body with oxyg...
Coughing pushes air out of the lungs to force the blockage out of the airway. Sounds are produced in the larynx by the movement of air through the larynx and by the vocal folds, a pair of movable folds in the mucous membrane. The vocal folds are connected to the thyroid cartilage on ...