The respiratory system: Comparing the lung structure of alligators and birds. Vishnu Mohan 3224328 Section 15 The respiratory system: Comparing the lung structure of alligators and birds I. Introduction II. Background information on the alligator * Archosaurs gave rise to the alligator sharing similar characteristics to the bird and have shown to have unidirectional airflow. (Claessens‚ 2004) * In alligators the air loops in a single direction through aerodynamic valves
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I was given the devastating news earlier this week that the Human Resources Department of the Human Body Corporation is considering firing me. Well‚ I’m writing this to you to explain why I‚ the lungs‚ should not be fired at all. As I mentioned before I am the lungs and I consist of two cone-shaped pink colored lungs that are soft‚ spongy‚ and elastic. I am located in the thoracic cavity. My anterior‚ lateral‚ and posterior surfaces lie in close contact with the ribs and forms the costal surface
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Human Digestive System The digestive tract is a series of hollow organs through which food passes: mouth‚ pharynx‚ esophagus‚ stomach‚ small intestine. Each portion is specialized for one or more aspect of the three major functions of the digestive system the secretion‚ digestion‚ and absorption. Accessory organs such as salivary glands‚ liver‚ gallbladder and pancreas have duct that lead into the digestive tract and thus support digestive function. Digestion is defined as the mechanical
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Human Endocrine System A system of glands and cells that make hormones that are released directly into the blood and travel to tissues and organs all over the body. The endocrine system controls growth‚ sexual development‚ sleep‚ hunger‚ and the way the body uses food. [pic] The human endocrine system modulates several processes of the body by the function of hormones. The endocrine system secretes hormones that control how bodily functions work. Thus‚ the human endocrine system watches
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can affect the respiratory system. The first effect is‚ eating fast food can lead to obesity which affects the respiratory system by decreasing the volume of the lungs. This lowers the forced expiratory volume in one second. It also lowers the vital capacity. This also lowers functional residual capacity. That is one effect of fast food on the respiratory system. The second effect is‚ that fast food causes causes obesity around the abdomen which worsens lung functions and respiratory symptoms. This
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Human Body System Interaction . All the systems in the human body are vital to our survival and well-being. If you take away the functions of just one of these systems our whole body will cease to work properly. The main systems of the human body are the nervous‚ endocrine respiratory‚ circulatory‚ immune‚ digestive‚ excretory‚ skeletal‚ muscular‚ and the reproductive systems. They all work together in harmony and unison to keep us alive. The nervous and endocrine systems are what control
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Question 1 Skeletal System The skeletal system is a strong yet light‚ flexible living framework that supports the body‚ protects delicate internal organs and makes movement possible. In addition‚ our bones store minerals while red bone marrow produces blood cells. Support The skeleton provides a frame that shapes the body and holds it up. Within the skeleton different characteristics of support can be identified. As the body’s main axis‚ the backbone provides support to the trunk with its upper
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Devonne Lozada Living Environment 1/8/13 Mr.Jorez Human Muscular System Visceral muscle is found inside of organs like the stomach‚ intestines‚ and blood vessels. The weakest of all muscle tissues‚ visceral muscle makes organs contract to move substances through the organ. Because visceral muscle is controlled by the unconscious part of the brain‚ it is known as involuntary muscle—it cannot be directly controlled by the conscious mind. The term “smooth muscle” is often used
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LEVELS OF ORGANIZATION OF NERVOURS SYSTEM: NEURONS: * STRUCTURE AND FUNCTION: Specialized cell transmitting nerve impulses; a nerve cell. Neurons have specialized projections called dendrites and axons. Dendrites bring information to the cell body and axons take information away from the cell body. Neurons communicate with each other through an electrochemical process. Information is transmitted to the receiving cell at junctions via chemical messengers called neurotransmitters. At this juncture
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The human body consists of eleven major organ systems that maintain homeostasis: the skeletal‚ muscular‚ circulatory‚ nervous‚ respiratory‚ digestive‚ urinary‚ endocrine‚ reproductive‚ integumentary and lymphatic systems. These organ systems are dependent on each other to keep the human body in homeostasis. For example‚ the nervous and endocrine systems coordinate functions of other body systems because they allow information to be communicated throughout the body. The nervous system consists of
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