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BIOS256/ BIOS 256 EXAM 1: (NEW 2025/ 2026 UPDATE) ANATOMY AND PHYSIOLOGY IV REVIEW| QS & AS| GRADE A| 100% CORRECT (VERIFIED ANSWERS) $7.99
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BIOS256/ BIOS 256 EXAM 1: (NEW 2025/ 2026 UPDATE) ANATOMY AND PHYSIOLOGY IV REVIEW| QS & AS| GRADE A| 100% CORRECT (VERIFIED ANSWERS)
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BIOS256/ BIOS 256 EXAM 1: (NEW 2025/ 2026 UPDATE) ANATOMY AND PHYSIOLOGY IV REVIEW| QS & AS| GRADE A| 100% CORRECT (VERIFIED ANSWERS) BIOS256/ BIOS 256 EXAM 1: (NEW 2025/ 2026 UPDATE) ANATOMY AND PHYSIOLOGY IV REVIEW| QS & AS| GRADE A| 100% CORRECT (VERIFIED ANSWERS) BIOS256/ BIOS 256 EXAM 1: (NEW ...

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  • January 8, 2025
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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BIOS




BIOS256/ BIOS 256 E XAM 1: (NEW 2025/ 2026
UPDATE) ANATOMY AND PHYSIOLOGY IV REVIEW| QS & AS|
GRADE A| 100% CORRECT (VERIFIED ANSWERS)

1. Describe the role of the myenteric plexus and innervation in the GI tract.:

innervates the smooth muscle layers, to control motility

2. Define deglutition: swallowing

3. Define mastication: chewing; mixed with saliva to make bolus

4. Define emulsification: large lipid droplets are converted into smaller lipid

droplets and giving them polarity

5. Define peristalsis: contraction and relaxation of the longitudinal muscularis

layer of the GI tract to push contents forward

6. Describe the functions of the parietal and chief cells and the role of their

secretions: Parietal: hydrochloric acid (HCl); intrinsic factor, and a hunger

hormone ghrelin Chief:

gastric lipase: aids in the digestion of lipids; pepsinogen: inactive form of

pepsin that aids in the digestion of proteins

7. Accessory VS Essential Digestive Organs: Main organs: mouth, pharynx,

esophagus, stomach, small intestine, large intestine, rectum, and anal canal




BIOS256 1/7

, 2
BIOS



Accessory organs: teeth and tongue, salivary glands, liver, gallbladder,

pancreas, and vermiform appendix

8. Describe the roles played by both the liver and the gallbladder in digestion:

Liver: Secretes bile which contributes to digestion

Gallbladder: concentrates and stores bile produced in the liver

9. List and describe all the secretions of the pancreas: endocrine: production

of glucagon and insulin to moderate blood glucose levels; Pancreatic islets

exocrine: production of pancreatic juice to aid in the digestion of food in

the small intestine

10. Role of Oral cavity: ingestion of food, taste (gustation), chemical

digestion, speech, and respiration

11. Role of Small intestine: -primary site of absorption of nutrients 12. Role

of Stomach: -Mixing saliva, food, and gastric juice to form chyme -reservoir

for food before release into the small intestine.

-gastric juices secretion: hydrochloric acid, pepsin, intrinsic factor, and gastric

lipase.

-hormones secretion: gastrin, ghrelin, and somatostatin into the blood

13. Role of Large intestine: -drive contents of the colon into the rectum

-Absorption of some water, ions, and vitamins




BIOS256 2/7

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