Anatomy and Physiology 431 Exam 3
Q&A
Secretin is a hormones that is secreted by the: - ANSWER-Small intestine
Which organ in the digestive system is retroperitoneal? - ANSWER-Pancreas
The inferior esophageal sphincter is also known as the: - ANSWER-Cardiac
Sphincter
The presence of food in the stomach triggers the release of a hormone that
stimulates contraction of the pyloric sphincter. Specifically, these events involve
release of: - ANSWER-Gastrin in the gastric phase of digestion
Protein digestion begins in the: - ANSWER-Stomach
Which is the layer of the serous membrane that directly covers the surface of internal
organs? - ANSWER-Visceral peritoneum
Peristalsis: - ANSWER-All of the choices:
-involves the opening and closing of muscular sphincters.
-involves back-and-forth movement for mixing.
-is the alternating contraction of muscle layers in the GI tract wall that propels
materials through the tract.
Antigens are: - ANSWER-Something that an antibody or T-lymphocyte binds to
Antigen presentation involves the display of an antigen: - ANSWER-On the surface
of the cell so that the T-lymphocyte can be exposed to it.
Which lymphatic organ contains red pulp and white pulp? - ANSWER-Spleen
Lymphatic capillaries: - ANSWER-Originate as closed-ended tubes associated with
blood capillary networks
The force that drives fluid into lymphatic capillaries is: - ANSWER-Hydrostatic
pressure
Lymph is transported through a network of increasingly larger lymphatic
passageways. What is the correct order of these, from smallest diameter to largest
diameter? - ANSWER-Capillaries - vessels - trunks - ducts
Because lymphatic vessels have three tunics (intima, media, and externa) and
valves, they structurally resemble: - ANSWER-Veins
Q&A
Secretin is a hormones that is secreted by the: - ANSWER-Small intestine
Which organ in the digestive system is retroperitoneal? - ANSWER-Pancreas
The inferior esophageal sphincter is also known as the: - ANSWER-Cardiac
Sphincter
The presence of food in the stomach triggers the release of a hormone that
stimulates contraction of the pyloric sphincter. Specifically, these events involve
release of: - ANSWER-Gastrin in the gastric phase of digestion
Protein digestion begins in the: - ANSWER-Stomach
Which is the layer of the serous membrane that directly covers the surface of internal
organs? - ANSWER-Visceral peritoneum
Peristalsis: - ANSWER-All of the choices:
-involves the opening and closing of muscular sphincters.
-involves back-and-forth movement for mixing.
-is the alternating contraction of muscle layers in the GI tract wall that propels
materials through the tract.
Antigens are: - ANSWER-Something that an antibody or T-lymphocyte binds to
Antigen presentation involves the display of an antigen: - ANSWER-On the surface
of the cell so that the T-lymphocyte can be exposed to it.
Which lymphatic organ contains red pulp and white pulp? - ANSWER-Spleen
Lymphatic capillaries: - ANSWER-Originate as closed-ended tubes associated with
blood capillary networks
The force that drives fluid into lymphatic capillaries is: - ANSWER-Hydrostatic
pressure
Lymph is transported through a network of increasingly larger lymphatic
passageways. What is the correct order of these, from smallest diameter to largest
diameter? - ANSWER-Capillaries - vessels - trunks - ducts
Because lymphatic vessels have three tunics (intima, media, and externa) and
valves, they structurally resemble: - ANSWER-Veins
