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23 Cards in this Set

  • Front
  • Back
This stomach layer is a thin layer of loose connective tissue and contains BV and lymphatic tissue.
lamina propria
This thin layer of smooth muscle causes folds to form in mucosal layer
Muscularis mucosae
This layer of the stomach contains loose connective tissue containing BV, glands and lymphatic tissue; and
Meissner’s plexus
What stomach muscles are found in mouth, pharynx , upper esophagus and anus; aid in the control of over swallowing and defecation?
skeletal muscle
What muscle consists of inner circular fibers & outer longitudinal fibers
mixes, crushes & propels food along by peristalsis?
smooth muscle
What muscle consists of inner circular fibers & outer longitudinal fibers
mixes, crushes & propels food along by peristalsis?
smooth muscle
The muscle of the tongue is attached to what?
hyoid, mandible, hard palate and styloid process
What are the taste buds of the tongue called?
What is the hardest substance in the body and what is it made of?
enamel; calcium carbonate
What is the calcified connective tissue of teeth called?
What is the bone-like periodontal ligament that penetrates dentin?
Between 6-12 years, how many teeth do you have?
At what age do you begin to erupt 20 new teeth?
6 months
In the esophagus, what portion constitutes skeletal muscle? smooth muscle?
upper = skeletal
lower = smooth
During involuntary swallowing, what happens?
breathing stops & airway closed
soft palate & uvula are lifted to close off nasopharynx
vocal cords close
What is pepsinogen? and what does HCL do to it?
pepsinogen is the inactive form of pepsin; hcl converts it into pepsin
What is the intrinsic factor of gastric glands?
absorption of vitamin B12 for RBC production
The gastrin hormone -- "get it out of here" -- as in clearing the stomach of crap, has what specific functions?
get it out of here”
release more gastric juice
increase gastric motility
relax pyloric sphincter
constrict esophageal sphincter preventing entry
What contributes to fat digestion?
gastric lipase splits the triglycerides in milk fat
most effective at pH 5 to 6 (infant stomach)
What occurs in the cephalic phase?
the stomach is getting ready -- receptors for smell, taste, senses. SLUDD stimulation; vagus nerve increases muscle activity
What occurs in the gastric phase?
this is where the stomach does the actual digestion and work
What goes on in the intestinal phase?
Stretch receptors in duodenum; fatty acids and glucose
What does the stomach absorb?
cold water