Transport Systems Essay In single celled organisms‚ nutrients‚ water and various substances that are need for basic cellular processes can easily be transported in and out through the cell membrane. This is an effective transport system for microscopic organisms‚ but multicellular organisms require a more complex transport system to sustain itself. Take humans for example; unlike a cell‚ only the outer layer of skin is in contact with the body’s outside environment. It’s not possible for substances
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Body Systems Intergumentary- The integumentary system consists of the skin‚ hair‚ nails‚ glands‚ and nerves. The main function is to act as a barrier to protect the body from the outside. It also retains body fluids‚ protects against disease‚ eliminate waste products‚ and regulates the body temperature. Cardio Vascular- The cardiovascular system carries blood‚ oxygen‚ and nutrients to organs and tissues of the body. It also carries waste and carbon dioxide from these tissues for removal from
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Nervous System The nervous system is the part of an animal’s body that coordinates the voluntary and involuntary actions of the animal and transmits signals between different parts of its body. In most types of animals it consists of two main parts‚ the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS contains the brain and spinal cord. The PNS consists mainly of nerves‚ which are long fibers that connect the CNS to every other part of the body. The PNS includes motor
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Body Systems Michele Frizzell HCS/212 March 22‚ 2014 Brenda Young Body Systems Several systems in the human body maintain its proper function. These systems fight disease and infection; maintain proper blood flow to lungs and body‚ and dispose of any waste that the body no longer needs. Learning how each system works was educational and quite amazing. Our immune system fights off bacteria‚ viruses‚ and disease. Our environment if full of harmful toxins that our bodies are subject to daily
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the anatomy and physiology of these three body systems; The Cardiovascular system‚ The Respiratory system and The Digestive system. The Cardiovascular System The cardiovascular system‚ also known as the circulatory system‚ consists of the heart‚ blood vessels and approximately 5 litres of blood. 55% of the blood is straw coloured yellow and 45% of the blood is made up of red and white blood cells and tiny particles called platelets. This system is powered by the heart and is responsible for
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Reproductive System What is it? The reproductive system is a collection of organs that work together for the purpose of producing a new life The major organs of the reproductive system include the external genitalia and internal organs‚ including gonads that produce gamete‚ which is a cell that fuses with another cell during conception in organisms that reproduce sexually. Substances such as fluids‚ hormones‚ and pheromones are also important to the effective functioning of the reproductive system What
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Respiratory system From Wikipedia‚ the free encyclopedia See also: Respiratory tractRespiratory system A complete‚ schematic view of the human respiratory system with their parts and functions. Details Latinsystema respiratoriumIdentifiers TAA06.0.00.000FMAFMA:7158Anatomical terminologyThe respiratory system (or ventilatory system) is a biological system consisting of specific organs and structures used for the process of respiration in an organism. The respiratory system is involved in
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cardiovascular system is an organ system comprised of the heart‚ blood and blood vessels. The cardiovascular system forms a part of the circulatory system‚ which circulates blood‚ lymph and oxygen throughout the body. The cardiovascular system works in conjunction with the digestive system to move nutrients throughout the body‚ and is also closely related to nervous system function. Here are some facts and functions of the cardiovascular system. 1. The Heart is at the Center of the Cardiovascular System The
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information about humans’ circulatory system. One of the most important systems our body has if not THE most important since one of its organs is the heart. We will focus on senior citizens. As we age‚ our organs’ working mechanism becomes slower and our muscles tend to be less flexible or elastic and that is why we think the information we will provide‚ will be very useful. Some of the talking points will be: • General function of the system and how the organ system contributes to physiological homeostasis
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CIRCULATORY SYSTEM Transport nutrients‚ respiratory gases‚ hormones‚ water‚ electrolytes‚ to and from all tissues of the body Body Fluids Interstitial Fluid - occupies spaces surrounding the cells in the body. Blood – contained within blood vessels BODY FLUID COMPOSITION LYMPHATIC SYSTEM FUNCTION: function of the lymphatic system is to return to the blood the excess fluid (lymph) filtered across capillary walls into interstitial spaces. plays a central role in the body’s defenses. Located
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