ACBS 400B exam 3 SG UPDATED ACTUAL QUESTIONS AND CORRECT
ANSWERS
1. 1. A
2. 2. B
3. 3. C
4. 4. D
5. 5. E
6. 6. F
7. 7. G
8. 8. H
9. 9. I
10. 10. J
11. 11. K
12. 12. L
13. 13. M
14. 14. N
15. 15. O
16. 16. P
17.
18.
19.
20.
What is the purpose of red pulp in the spleen? It filters out old and/or damaged RBCs, antigens, and pathogens from the blood
What is the purpose of white pulp in the spleen? It is part of the lymph system and makes new B and T lymphocytes
The enteric nervous system has (2 words) __________ that The enteric nervous system has (2 words) ___sensory neurons___ that can detect a
can detect a variety of changes within gut: distension variety of changes within gut: distension (stretch receptors), pH of luminal
(stretch receptors), pH of luminal contents, osmolarity, contents, osmolarity, and presence of certain toxins
and presence of certain toxins
, Describe the process of ingesta movement through 1. First, distension of fundus activates ENS and vagal afferent sensory neurons
stomach.
2. Which causes ENS and vagal efferent activation of stomach muscle contraction
3. This activation begins mid-fundus as a peristaltic wave that propels ingesta
toward small intestine
4. Which causes the peristaltic wave to reach aboral or pyloric end of stomach
5. Then, pyloric sphincter relaxes momentarily
6. Allowing small amount of most digested and liquid material (chyme) to pass
into duodenum
7. After it does, pyloric sphincter quickly contracts again before peristaltic wave
has been completed
8. Which causes more solid material within chyme to hit pylorus
9. However, some is shunted back toward fundic area of stomach
10. Thus, this continues until stomach is emptied
Where does the preganglionic cell bodies of the Sacral spinal cord
parasympathetic innervation of the GI tract originate?
Which chamber of the ruminant stomach is considered Abomasum
the "true" stomach?
Match the blood vessels to their locations. Duodenum = Celiac and cranial mesenteric arteries
Jejunum = Cranial mesenteric artery only
Ileum = Ileocecal artery
Cecum = Ileocolic artery
Ascending colon = Ileocolic and right colic artery
Transverse colon = Right and middle colic arteries
Proximal half of descending colon = Middle colic artery
Distal half of descending colon = Left colic branch of caudal mesenteric artery
and cranial rectal artery
Which of these is NOT involved in the vascularization of Cranial mesenteric artery
the spleen?
ANSWERS
1. 1. A
2. 2. B
3. 3. C
4. 4. D
5. 5. E
6. 6. F
7. 7. G
8. 8. H
9. 9. I
10. 10. J
11. 11. K
12. 12. L
13. 13. M
14. 14. N
15. 15. O
16. 16. P
17.
18.
19.
20.
What is the purpose of red pulp in the spleen? It filters out old and/or damaged RBCs, antigens, and pathogens from the blood
What is the purpose of white pulp in the spleen? It is part of the lymph system and makes new B and T lymphocytes
The enteric nervous system has (2 words) __________ that The enteric nervous system has (2 words) ___sensory neurons___ that can detect a
can detect a variety of changes within gut: distension variety of changes within gut: distension (stretch receptors), pH of luminal
(stretch receptors), pH of luminal contents, osmolarity, contents, osmolarity, and presence of certain toxins
and presence of certain toxins
, Describe the process of ingesta movement through 1. First, distension of fundus activates ENS and vagal afferent sensory neurons
stomach.
2. Which causes ENS and vagal efferent activation of stomach muscle contraction
3. This activation begins mid-fundus as a peristaltic wave that propels ingesta
toward small intestine
4. Which causes the peristaltic wave to reach aboral or pyloric end of stomach
5. Then, pyloric sphincter relaxes momentarily
6. Allowing small amount of most digested and liquid material (chyme) to pass
into duodenum
7. After it does, pyloric sphincter quickly contracts again before peristaltic wave
has been completed
8. Which causes more solid material within chyme to hit pylorus
9. However, some is shunted back toward fundic area of stomach
10. Thus, this continues until stomach is emptied
Where does the preganglionic cell bodies of the Sacral spinal cord
parasympathetic innervation of the GI tract originate?
Which chamber of the ruminant stomach is considered Abomasum
the "true" stomach?
Match the blood vessels to their locations. Duodenum = Celiac and cranial mesenteric arteries
Jejunum = Cranial mesenteric artery only
Ileum = Ileocecal artery
Cecum = Ileocolic artery
Ascending colon = Ileocolic and right colic artery
Transverse colon = Right and middle colic arteries
Proximal half of descending colon = Middle colic artery
Distal half of descending colon = Left colic branch of caudal mesenteric artery
and cranial rectal artery
Which of these is NOT involved in the vascularization of Cranial mesenteric artery
the spleen?
