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GI tract consist of? - 🧠ANSWER ✔✔Mouth, esophagus, stomach, small &
large intestine, rectum, and anus
Accessory organs of the GI tract? - 🧠ANSWER ✔✔Liver, pancreas, and
gallbladder
Main function of the GI system? - 🧠ANSWER ✔✔supply nutrients to body
cells. Accomplished through ingestion, digestion, and absorption. And
elimination
4 layers of the GI tract inside to out - 🧠ANSWER ✔✔Mucosa lining,
submucosa connective tissue, muscle, and serosa
,The submucosa contains what? - 🧠ANSWER ✔✔Glands, blood vessels,
and lymph nodes
What is the layers of the muscular coat? Inner to outer - 🧠ANSWER
✔✔Oblique, circular, and longitudunal
Parasympthetic nervous system is mainly - 🧠ANSWER ✔✔excitatory;
increases peristalsis- diarrhea
Sympathetic nervous system is mainly - 🧠ANSWER ✔✔Inhibitory;
decreases peristalsis
Venous blood empties into the _______ and then perfuses the ______ -
🧠ANSWER ✔✔portal vein; liver
What supplies arterial blood to the GI tract? - 🧠ANSWER ✔✔Celiac artery,
superior mesenteric artery (SMA), and the inferior mesenteric artery (IMA)
The celiac artery supplies blood to the? - 🧠ANSWER ✔✔Stomach &
duodenum
The superior mesenteric artery (SMA) supplies blood to the? - 🧠ANSWER
✔✔Distal small intestines (jejunum & ileum) to mid large intestines
, The inferior mesenteric artery (IMA) supplies blood to the - 🧠ANSWER
✔✔Distal large intestine through the anus
The GI tract & accessory organs receives how much cardiac output when
at rest and when eating? - 🧠ANSWER ✔✔25%-30% at rest & 35% while
eating
Because a large percentage of cardiac output perfuses these organs, blood
flow can be diverted from this system during? - 🧠ANSWER ✔✔Exercise,
stress, or injury
What influences how much a person eats? - 🧠ANSWER ✔✔Appetite
Where is the appetite center located? - 🧠ANSWER ✔✔Hypothalamus
What factors influence appetite? - 🧠ANSWER ✔✔Hypoglycemia (low blood
glucose), an empty stomach, and a decrease in body temp
Appetite is inhibited by? - 🧠ANSWER ✔✔Stomach distention, illness,
hyperglycemia, N/V, and certain drugs
Which hormone plays a role in appetite STIMULATION? - 🧠ANSWER
✔✔Ghrelin
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