BIOD 103 MODULE 6 PROBLEM SET EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++

BIOD 103 MODULE 6 PROBLEM SET EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ Name the parts of the oral cavity Roof is soft and hard palates Sides are cheeks Entrance is lips Floor is tongue Describe structure and function of tongue Tongue is made of muscle Functions to taste, move food, initiate swallowing What are the teeth of an adult? Four types: incisors, molars, premolars, canines What are incisors and canines used for? Biting into food; sharp cutting edge What are premolars and molars used for? Crushing food Describe the role of the epiglottis during swallowing Covers entrance to trachea Describe two types of digestion Mechanical and chemical Describe mechanical digestion Muscles in walls of stomach contract to churn food Describe chemical digestion Digestive enzymes within gastric juices mix with food and break it down What is the product of digestion Chyme Describe differences between small and large intestines Small intestine: continues chemical digestion and absorb nutrients through villi located in walls. Large intestine: compacts leftover waste into feces, absorb water from chime, and remove feces through defecation Diameter and length of small intestine 1 inch; 21 feet Diameter and length of large intestine 2.5 inches; 5 feet Identify accessory organs of digestive system Salivary glands liver gall bladder pancreas What is function of salivary glands? Secrete saliva in mouth; moisten food; start carbohydrate digestion What is function of liver? Secretes bile; functions in metabolism of nutrients for body What is function of gall bladder? Stores bile What is function of pancreas? Secretes hormones and digestive enzymes Name the kidney's three protective layers Renal capsule, perirenal fat, renal fascia ______________ is the structural and functional unit of the kidney nephron Describe the parts of the nephron Starts at glomerulus; proximal convoluted tubule; loop of Henle; distal convoluted tubule; collecting tubule Describe how urine is formed in the nephron Glomerulus filtration pulls water and waste products out of blood and into tubule; As tubule runs along a capillary, contents of filtrate are refined as more waste products are added to the filtrate; proteins, glucose, ions, and water are reabsorbed into the blood. Describe the path of urine from kidney to outside body Kidney; ureter; urinary bladder; urethra; out of urethra through urinary meatus Describe differences between male and female urethra