trachea and then the lungs but this is not always the case for some patients who need an alternative way to breathe. When breathing become difficult due to an obstruction or narrowing in the windpipe or throat‚ difficulty getting rid of mucus and secretions or a patient need to be in a ventilator for long periods of time a tracheostomy to breath will be needed. A tracheotomy is a small incision made through the neck and into the trachea in which a tracheostomy tube keeps this hole open so air can
Premium Breathing Patient Lung
A and P II Chapter 24 practice test 1. Which of the following digestive regions is responsible for the propulsion of materials into the esophagus? Answer: pharynx 2. The active process that occurs when materials enter the digestive tract via the mouth is: Answer: ingestion 3. Sympathetic stimulation of the muscularis externa promotes: Answer: muscular inhibition and relaxation 4. Which of the following statements about peritonitis is false? Answer: It leads to inflammation of the digestive mucosa
Premium Digestion Digestive system
1. Describe the fluid-mosaic model of a plasma membrane. Discuss the role of the membrane in the movement of materials through it by each of the following processes: a. Active transport b. Passive transport The plasma membrane is a semi permeable barrier that separates the inside of the cell from the outside environment. The plasma membrane is made up of carbohydrates‚ cholesterol‚ proteins‚ and a lipid bilayer‚ or double layer of lipids. The plasma membrane may be known as a fluid mosaic
Premium Cell membrane Cell Membrane biology
The Endocrine System Vincent Schwartz Laszlo Vass‚ Ed.D. Version 42-0023-01-01 Purpose What is the purpose of this exercise? Are there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. Students will identify the major endocrine glands and tissues of the body. Students will relate each endocrine gland to the
Premium Growth hormone Experiment Blood
The Excretory System • Main functions of the excretory system are: o to concentrate wastes and expel them from the body o to regulate fluids and water within the body • Most metabolic wastes and toxins are dissolved in the body’s internal environment‚ so the maintenance of the body fluids is essential for keeping the body free of waste products enabling it to function properly. Excretion in Invertebrates and Non-mammaliam Vertebrates • Single celled organisms and simple multicellular
Free Kidney
Effects of Diet on the Development of Cholesterol Gallstones Hannah Matich BIO 392 Dijkstra Thurs 6PM Lab 3/29/17 1 Gallbladder disease is one of the most common gastrointestinal disorders in developed countries. Gallbladder disease is typically manifested in the form of gallstones or gallbladder cancer. Gallstones affect 10-15% of people in developing countries‚ meaning 20-25 million Americans have or will have gallstones (Stinton and Shaffer‚ 2012). Though mortality rate is low;
Premium Cholesterol Nutrition Liver
Water Balance Adipose tissue is one of the most hydrated of all tissues in the human body. False The most abundant cation in intracellular fluid is sodium. False Electrolytes determine most of the chemical and physical reactions of the body. True Solutes‚ regardless of size‚ are able to move freely between compartments because water carries them along the osmotic gradients.False The thirst center in the brain is located in the hypothalamus.True Dehydration can be caused by endocrine disturbances
Premium Water Nutrition Dehydration
levels ▪ has a higher affinity for androgen receptor‚ much more potent o T ( estradiol important for neg. feedback (esp at hypothalamus) and epiphyseal closure - LH from ant.pituitary acts at Leydig cells to stimulate synthesis and secretion of T (which will just diffuse out since it is steroid hormone) Seminiferous Tubules and Spermatogenesis - seminiferous tubules make up bulk of testicular volume - spermatozoa are synthesized within the seminefous epithelium‚ and pass
Premium Testosterone Epithelium
the bolus leaves the mouth‚ it moves into the pharynx‚ where it can be swallowed. The bolus then moves from the pharynx to the stomach. Once the bolus reaches the stomach‚ it is mixed with acid secretion to transform the bolus into chyme (the semifluid mass into which food is converted by gastric secretion and which passes from the stomach into the small intestine). Food is partially digested in the stomach and chyme usually empties from the stomach in two to six hours. This time frame can be determined
Free Digestion Digestive system
ghrelin‚ has been recognized as an important regulator of GH secretion and energy homeostasis. Orexigenic and adipogenic ghrelin is produced by the stomach‚ intestine‚ placenta‚ pituitary‚ and possibly in the hypothalamus. The concentration of circulating ghrelin‚ principally derived from the stomach‚ is influenced by acute and chronic changes in nutritional state. To date‚ most studies focused on the role of ghrelin in GH secretion or its function in complementing leptin action to prevent energy
Free Hypothalamus Growth hormone