The heart is partially so efficient because of its shape. The orientation of the different compartments of the heart allows for deoxygenated blood to enter, pass to the lungs to receive oxygen, and exit back to the body. As the heart pumps, the alignment of the valves and compartments of ...
Describe the structure of the lungs and lobes. Describe the general structure/anatomy of the stomach, including the histology and muscle layers. Describe how epithelial tissue is classified on the basis of the shape of the cells. Briefly describe the microscopic appearance of a skeletal muscle...
Skin, the largest organ of the human body, is part of the integumentary system (together with the hair, nails, and associated glands). The main functions of the skin are: to act as a protective barrier of the body (against injury, UV radiation, hazardous chemicals, pathogens, etc.), to...
In 12 human lungs (0.1–15 yr), the alveolar surface area of immature and mature septa was estimated stereologically by intersection counting. An MVM-quotient (RMVM) was defined as the mature alveolar surface area over total alveolar surface area. The MVM-quotient increased logarithmically over ...
n.pl.ep·i·the·li·a(-lē-ə)orep·i·the·li·ums Membranous tissue composed of one or more layers of cells separated by very little intercellular substance and forming the covering of most internal and external surfaces of the body and its organs. ...
DNone of the above. Submit Dtrachea, lungs, stomach, skin. Submit Dorganic evolution Submit Explain the formation of different organ systems from the germ layers in human embryogenesis. View Solution The presence of gill slits in the embryos of all vertebrates support the theory of ...
Where as, the veins transfer blood towards the heart. Arteries carry oxygenated blood distributing it in the periphery as the pulmonary artery moves deoxygenated blood into the lungs for purification. The wall of an artery consists of three layers machining it thicker than veins. The elasticity ...
Capillaries create a network of small vessels where the exchange of nutrients and substances can take place. The pulmonary system which transports blood between the heart and lungs have their functions reversed, with the pulmonary arteries carrying the oxygen ...
Compare the epithelial tissues that line the trachea, the lungs, and the epidermis of the skin. Discuss how they are similar or different in terms of their structure and function. What are epithelial tissues? What is their function and how is that function associated with the features of the...
theheart worksto supplybloodand oxygen to all parts of the body. The heart is located in the chest cavity just posterior to the breastbone, between thelungs, and superior to the diaphragm. It is surrounded by a fluid-filled sac called thepericardium, which serves to protect this vital organ...