Chapter 16-Lymphatic System & Immunity 1. Explain the functions of the lymphatic system. The lymphatic system functions to balance fluid‚ lipid absorption (via lacteals=lymph capillaries) and defense. It removes toxins/pathogens‚ fight infections and transports excess fluid in the interstitial spaces and returns it to the blood stream. Lacteals absorb digested fats from small intestines and transports it to venous circulation. 2. Trace the general pathway of lymph from the interstitial
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produce waste products. If you can not get rid of these metabolic waste products‚ they will accumulate to toxic levels and poison your body. The urinary system is very important because it perform the essential function of getting rid of these metabolic wastes. Main Structures of the Urinary System The main structures that make up the urinary system are two kidneys (contains nephrons)‚ two ureters‚ one bladder‚ one urethra‚ arteries and veins. The Ureter connects the kidney to the bladder. The bladder
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using mineral nutrient solutions‚ in water‚ without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium‚ such as perlite‚ gravel‚ mineral wool‚ or coconut husk. Researchers discovered in the 19th century that plants absorb essential mineral nutrients as inorganic ions in water. In natural conditions‚ soil acts as a mineral nutrient reservoir but the soil itself is not essential to plant growth. When the mineral nutrients in the soil dissolve
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Circulatory System Composition of Blood Red Cells -These are tiny‚ disc-like cells which do not have nuclei. -In their cytoplasm is the haemoglobin‚ a protein combined with iron. Haemoglobin combines with oxygen in places where there is a high concentration of oxygen‚ to form oxyhaemoglobin. -Oxyhagemoglobin is unstable compound. It breaks down and releases its oxygen in places where oxygen contentration is low. White Cells -They undergo a process of matruation and development in the
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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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The endocrine system is a control system of ductless glands that secrete chemical "instant messengers" called hormones that circulate within the body via the bloodstream to affect distant cells within specific organs. Endocrine glands secrete their products immediately into the blood or interstitial fluid‚ without storage of the chemical. Hormones act as "messengers‚" and are carried by the bloodstream to different cells in the body‚ which interpret these messages and act on them. Typical endocrine
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The Main Body Systems The Respiratory System The respiratory system is one of the bodies most important systems‚ the main goal of the respiratory system is to provide gas exchange so the inhaling of oxygen and the exhaling of carbon dioxide. In the health and social care setting the words “respiratory rate” or “resps” are often used‚ this simply means how many times a person breathes in a minute this can help to diagnose problems such as asthma and other breathing related illnesses. Parts of
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nervous system consists of the brain‚ spinal cord‚ and a complex network of neurons. This system is responsible for sending‚ receiving‚ and interpreting information from all parts of the body. The nervous system monitors and coordinates internal organ function and responds to changes in the external environment. This system can be divided into two parts: the central nervous system and the peripheral nervous system. Let ’s take a look at the central nervous system. Central Nervous System The central
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Excretory System Review Main Concepts: Describe the major gross anatomical structures of the excretory system. Kidneys: receive about 25% of the cardiac output; produce urine (a fluid containing water‚ ions‚ and small soluble compounds) Ureters: receive urine from the kidneys and conduct it to the urinary bladder. Urine movement involves a combo of gravity and the peristaltic contractions of smooth muscle in the walls of the ureters Urinary Bladder: receives and stores urine prior to elimination
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1.The human body has many system including the integument. The integumentary system is an organ system consisting of skin‚ hairs‚ nails and exocrine glands. The Skin as a largest organs in human body serves as protection and covering‚ composed of two region the epidermis and dermis. The most superficial and outer layer of skin is Epidermis that covers the entire body surface. The epidermis is avascular means that it has no blood supply also has four to five distinct layers: stratum basale‚ stratum
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