Biology exam Endocrine system: Hormones: chemical messengers that coordinate the body’s activates. Substances secreted by cells that act to regulate the activity of other cells in the body. They are part of the endocrine system and they are slow acting but have a longer affect than neurotransmitters. Functions: * regulate growth‚ development‚ behavior‚ and reproduction. * Maintain homeostasis * Regulate metabolism and water and mineral balance * Respond to external stimuli
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The pancreas is a gland in the body connected to the small intestine. The small intestine is where most of the digestion and absorption of food occurs. One of the functions of the pancreas is to make enzymes that digest food. Digestive enzymes from the pancreas enter the small intestine through a small duct‚ or passageway. In cystic fibrosis (CF)‚ the ducts in the pan- creas become clogged with thick‚ sticky mucus. This mucus blocks the enzymes from reaching food in the small intestine. This can
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form after passing through the organ. * Water‚ bile‚ enzymes‚ and mucous contribute to the change in consistency. * Once the nutrients have been absorbed and the leftover-food residue liquid has passed through the small intestine 5) PANCREAS * secretes digestive enzymes into the duodenum‚ the first segment of the small intestine. * These enzymes break down protein‚ fats‚ and carbohydrates. * makes insulin‚ secreting it directly into the bloodstream. Insulin is the chief
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The Endocrine System Exercise 1: The Pituitary Gland obseRvations A. Please describe in detail the structures and features you observed on the pituitary gland slide. The Pituitary Gland Slides The Anterior Pituitary Gland was darker than the Posterior Pituitary Gland. In the Anterior Pituitary Gland Slide you can see Chromophobes and Acidophiles. Not super easy to distinguish which is which though. The Posterior Pituitary Gland slide showed Pitulcytes (Neuroglia) as light purple
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It is divided into different segments beginning with the oral cavity and followed by the pharynx‚ esophagus‚ stomach‚ small and large intestine‚ and the anus. There are also accessory digestive organs involved including the salivary glands‚ liver‚ pancreas‚ and gallbladder. Digestion begins in the oral cavity where the cheeks and lips press the food against the teeth‚ a process known as mastication. This is the first phase of mechanical digestion which is also aided by the tongue. There are three
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Principles of Human Physiology‚ 4e (Stanfield) Chapter 20 The Gastrointestinal System 20.1 Multiple Choice Questions 1) Which of the following is NOT a basic process of the gastrointestinal system? A) digestion B) filtration C) absorption D) secretion E) motility Answer: B Diff: 4 Page Ref: 568 2) Which of the following is the correct order of the layers of the gastrointestinal tract wall‚ from lumen to external surface? A) mucosa submucosa muscularis externa serosa
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c. Describe the path that urine takes to exit the body‚ starting in the kidney. Urine collects in the kidneys travels through 2 thin tubes Ureters to bladder Muscles in the ureter walls tighten and relax to push urine downward away from the kidneys Sphincter is like a rubber band which keeps the opening of the bladder so that urine can pass down through the urethra urethra‚ tube that allows urine exits the body. 4. Discuss your dissection of the components of the endocrine system of the
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Hormones and the Endocrine System 26.1 Chemical and electrical signals coordinate body functions The Endocrine System is a group of interacting glands and tissues throughout the animal body that produce and secrete chemical to initiate and maintain body functions and activities. Chemical Signals -Hormones - are released into the bloodstream by endocrine cells and carried to all locations in the body Consists of all hormone secreting cells Works with the nervous system in regulating body activities
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Body Cavity – Brain‚ Spinal cord Thoracic Cavity – Heart‚ Lungs‚ Bronchi‚ Trachea‚ Esophagus‚ Diaphragm Abdominopelvic Cavity – Liver‚ Stomach‚ Pancreas‚ Spleen‚ Small Intestine‚ Large Intestine‚ Rectum‚ Kidneys‚ Ureters‚ Bladder‚ Adrenal Glands‚ Descending Aorta (an artery)‚ Inferior Vena Cava (a vein) Umibilical Region: Stomach‚ Pancreas‚ Small Intestines‚ Aorta‚ Vena Cava‚ Spinal Cord Epigastric Region: Liver‚ Stomach‚ Aorta‚ Vena Cava‚ Spinal Cord Hypogastric Region: Small
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Digestive enzymes come from the pancreas through the excretory ducts‚ while bile acids come from the liver via the bile ducts. The digestive enzymes and the bile acids will allow to transform the chyme‚ liquid including food pre-digested by the digestive juices coming from the stomach.
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