BIO 208

Air flows out of the lungs because intra-alveolar pressure is greater than _______ during expiration. Select one: a. barometric air pressure b. thoracic volume c. alveolar volume d. pleural pressure Feedback The correct answer is: barometric air pressure Question 2 Correct Mark 1.00 out of 1.00 Flag question Question text Select the correct statement regarding the lungs. Select one: a. The left lung is larger than the right lung. b. Only the right lung has a hilum. c. The left ...

Bio 208-week 6 Digestive Select the correct answer explaining why the stomach does not digest itself. Select one: a. The stomach wall lacks proteins so enzymes won't attack it. b. The stomach lining is too tough to be digested. c. The digestive enzymes in the stomach aren't efficient enough. d. The stomach is protected by HCl. e. The stomach wall is protected by large amounts of mucus. Feedback The correct answer is: The stomach wall is protected by large amounts of mucus. Question 2...

Select the correct answer explaining why the stomach does not digest itself. Select one: a. The stomach wall lacks proteins so enzymes won't attack it. b. The stomach lining is too tough to be digested. c. The digestive enzymes in the stomach aren't efficient enough. d. The stomach is protected by HCl. e. The stomach wall is protected by large amounts of mucus. Feedback The correct answer is: The stomach wall is protected by large amounts of mucus. Question 2 Incorrect Mark 0.00 out...

1 Correct Mark 1.00 out of 1.00 Flag question Question text All of the following are roles of microorganisms in the large intestine, except ______. Select one: a. vitamin K synthesis b. break down cellulose c. wall lubrication d. microorganisms play all of these roles Feedback The correct answer is: wall lubrication Question 2 Correct Mark 1.00 out of 1.00 Flag question Question text During the esophageal phase of deglutition, how does the bolus move? Select one: a. peristals...

Which immunoglobulin is regularly the first antibody produced in response to an antigen? Select one: a. IgG b. IgM c. IgD d. IgA e. IgE Feedback The correct answer is: IgM Question 2 Correct Mark 1.00 out of 1.00 Flag questio

Question text What is true of the enteric plexus? Select one: a. It contains sympathetic neurons and fibers. b. It controls movement and secretion of the digestive tract. c. It consists of the myenteric plexus and the celiac plexus. d. It is a valve in the GI tract. e. It is found in the mucosa. Question 2 Correct Mark 1.00 out of 1.00 Flag question Question text What would occur of the ileocecal valve was blocked? Select one: a. Prevention of pancreatic juice from entering the du...

Question text What causes redness and heat in an area where inflammation is occurring? Select one: a. production of interferon b. phagocyte mobilization c. a reddish substance released by erythrocytes d. vasoconstriction e. increased blood flow to the area Question 2 Correct Mark 1.00 out of 1.00 Flag question Question text Select which of the following choices is an innate physical barrier. Select one: a. phagocytosis of invading organisms b. release of histamine c. inflammatio...

Question text Select the correctly matched pair. Select one: a. fundus - opening from the stomach into the duodenum b. pyloric opening - opening from the esophagus c. pylorus - the most inferior portion of the stomach d. body - portion closest to the esophagus e. cardiac region - the largest portion of the stomach Feedback The correct answer is: pylorus - the most inferior portion of the stomach Question 2 Correct Mark 1.00 out of 1.00 Flag question Question text Select the functi...