BIO 171T Exam 3 – Respiratory & Digestive Systems – Verified Questions &
Answers – 100% Exam-Focused – LAST UPDATED 2025
The region of the stomach that empties into the duodenum is the
pyloric part
Which of the following nutrients is absorbed by the lacteals of the small intestine?
triglycerides
The primary effect of secretin is to __________.
increase the secretion of bile and buffers by the liver and the pancreas
What is the hormone secreted by the small intestine that dilates capillaries in the small intestine area?
VIP
Fatty acids and lipids are absorbed into the ____________ found in each villus of the small intestine.
lacteal
Which peptide hormone causes the secretion of insulin from the pancreatic islets?
GIP
The absorption of which vitamin would be impaired if the stomach were removed?
B12
Salivary amylase secreted by
salivary glands
Sympathetic stimulation ___ salivation
decreases salivation
What is perhaps the most important function of the large intestine?
water reabsorption
Which of the following is NOT a region of the small intestine?
cecum (large intestine)
G cells of the stomach secrete
gastrin
lacteal function
absorbs materials that cannot enter the blood capillaries
Pepsinogen is converted to pepsin by
gastric lumen.
, gallbladder
stores and concentrates bile secreted by the liver
Gastric lipase function
Splits triglycerides into fatty acids and monoglycerides
stomach absorbs
Some water, ions, short chain fatty acids, certain drugs (aspirin) and alcohol
heaviest gland in body
liver
tissue that lines nasal cavity, superior portion of pharynx, trachea, bronchi, and larger bronchioles
pseudostratified ciliated columnar epithelium
The lungs contains a total of five
lobes (3 on the right, 2 on the left)
Crude sounds are formed into intelligible speech by all of the following except the
epiglottis
which of the following enzymes in an RBC breaks H2CO3 down to water and carbon dioxide?
carbonic anhydrase
Each hemoglobin molecule can transport up to ________ oxygen molecules
4
The layer of loose connective tissue that directly supports the digestive epithelium is the
lamina propria
Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its
individual gases
Dalton’s
Which two ligaments extend from the thyroid cartilage to the arytenoid cartilages?
vestibular and vocal
glottis is where
air passes through larynx
Why does air flow into the lungs during inspiration?
Atmospheric pressure is greater than intrapulmonary pressure, and air flows toward the lower pressure area.
Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by ________.
Answers – 100% Exam-Focused – LAST UPDATED 2025
The region of the stomach that empties into the duodenum is the
pyloric part
Which of the following nutrients is absorbed by the lacteals of the small intestine?
triglycerides
The primary effect of secretin is to __________.
increase the secretion of bile and buffers by the liver and the pancreas
What is the hormone secreted by the small intestine that dilates capillaries in the small intestine area?
VIP
Fatty acids and lipids are absorbed into the ____________ found in each villus of the small intestine.
lacteal
Which peptide hormone causes the secretion of insulin from the pancreatic islets?
GIP
The absorption of which vitamin would be impaired if the stomach were removed?
B12
Salivary amylase secreted by
salivary glands
Sympathetic stimulation ___ salivation
decreases salivation
What is perhaps the most important function of the large intestine?
water reabsorption
Which of the following is NOT a region of the small intestine?
cecum (large intestine)
G cells of the stomach secrete
gastrin
lacteal function
absorbs materials that cannot enter the blood capillaries
Pepsinogen is converted to pepsin by
gastric lumen.
, gallbladder
stores and concentrates bile secreted by the liver
Gastric lipase function
Splits triglycerides into fatty acids and monoglycerides
stomach absorbs
Some water, ions, short chain fatty acids, certain drugs (aspirin) and alcohol
heaviest gland in body
liver
tissue that lines nasal cavity, superior portion of pharynx, trachea, bronchi, and larger bronchioles
pseudostratified ciliated columnar epithelium
The lungs contains a total of five
lobes (3 on the right, 2 on the left)
Crude sounds are formed into intelligible speech by all of the following except the
epiglottis
which of the following enzymes in an RBC breaks H2CO3 down to water and carbon dioxide?
carbonic anhydrase
Each hemoglobin molecule can transport up to ________ oxygen molecules
4
The layer of loose connective tissue that directly supports the digestive epithelium is the
lamina propria
Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its
individual gases
Dalton’s
Which two ligaments extend from the thyroid cartilage to the arytenoid cartilages?
vestibular and vocal
glottis is where
air passes through larynx
Why does air flow into the lungs during inspiration?
Atmospheric pressure is greater than intrapulmonary pressure, and air flows toward the lower pressure area.
Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by ________.
