Muscular System Animations 1. How do nerve impulses cause muscle contraction? Skeletal muscle is under voluntary control. Nerve impulses that originate in the central nervous system cause muscles to contract. Both neurons and muscle tissue conduct electrical current by moving ions across cellular membranes. A motor neuron ends in a synapse with a muscle fiber. The neuron releases acetylcholine and transfers the action potential to the muscle tissue. The signal will travel through the tissue
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Digestive system disorders Digestive system disorders can cause a lot of discomfort. Symptoms can include gas‚ diarrhea‚ constipation‚ cramps‚ nausea and vomiting. These common symptoms can have very different causes. These kinds of symptoms can make digestive disorders hard to diagnose. Celiac disease Celiac disease occurs when the body’s immune system reacts to a type of protein called gluten. If a person eats food that contains gluten‚ the immune system will gradually damage the lining of
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Biology Mammals Grazing Herbivore: Herbivores digestive systems can consist of one of two types of insides‚ it can be a foregut fermenter where the Foregut Fermeters has two parts (a tubiform and a sacciform fore stomach) containing lots of microbes. The stomach is bigger than that of a hindgut fermenter considering its usually a bigger animal‚ the stomach has an extra chamber to help devour glucose from the cellulose (the herbivores diet is largely cellulose and is broken down by the microbes)
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between the skeletal and muscular systems. The relationship between the skeletal and muscular systems is that we are made up of bones all throughout our body and we need this to stand and hold our body together‚ similar to the skeletal system the muscular system is made up of soft tissue and is lined all over our body. We could not stand without the system as well. 2. Why is the circulatory system important? This system is important because it is used to circulate blood around the body. If blood did
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SKELETAL SYSTEM The Arctic wolf’s body is built for long-distance travel and withstand different types of weather than other wolves. The Arctic wolf’s skeleton system is made for them to run‚ jump‚ and catch their prey. The part of the wolf’s skeletal starts with the part of the body that has bones of the limbs‚ skull‚ and a deep chest. 1. The limbs of the wolf include the legs and toes. The wolf has long legs‚ large paws‚ and short toes. The wolf has five toes on the forefeet and four toes on
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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 body systems The Musculoskeletal system consists of the bones‚ muscles‚ ligaments and tendons. It provides structural support for the entire body. The musculoskeletal system allows and controls movement. The Cardiovascular system is responsible for transporting and removing gaseous waste from the body. The cardiovascular system is made up of your heart‚ blood vessels (arteries‚ veins‚ capillaries) and blood. The four major functions of the cardiovascular system are: To transport nutrients‚
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organs‚ monitoring information from the autonomic nervous system Basic functional cell of nervous system Transmits impulses (up to 250 mph) Parts of a Neuron Dendrite – receive stimulus and carries it impulses toward the cell body Cell Body with nucleus – nucleus & most of cytoplasm Axon – fiber which carries impulses away from cell body Schwann Cells- cells which produce myelin or fat layer in the Peripheral Nervous System Myelin sheath – dense lipid layer which insulates the axon
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BIOLOGY ‘S ASSIGNMENT 1/What is the purpose of digestion? * Break down food‚ absorb nutrient from food into body tissues and systems in body 2What is the name given to mammal only eat meat ? * Carnivores 3/What is the name of mammal only eat plant? * Herbivores 4/What is the difference between a fore-gut fermenter and hind-gut fermenter? Example? Because plant cells have tough cellulose cell walls and herbivore are not able to digest‚ they use micro- organisms that live symbiotically
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cusps (tips) and are best suited for grinding. * A tooth consists of two major regions‚ the crown and the root. * The enamel-covered crown is the exposed part of the tooth above the gingiva or gum. Enamel- Is the hardest substance in the body and is fairly brittle because it is heavily mineralized with calcium and salts. * The outer surface of the root is covered by a substance called cementum‚ attaches the tooth to the periodontal membrane (ligament) Dentin- a bonelike material
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