[Solved] Which of the following factors contributes to healthy blood pressure? A) Having narrowed arteries B) Having arteries that stretch and recoil C) Having soft plaque buildup D) Having sclerotic arteries Gastric Glands: Glands located in the lining of the stomach that secrete gastric juice, including hydrochloric acid and digestive enzymes, aiding in digestion. Produce HCl: Refers to the process where the parietal cells of the stomach secrete hydrochloric acid (HCl) which is essential for digestion and killing pathogens ingested with food. Muscularis Externa: A layer of muscle in the gastrointestinal tract wall that is responsible for peristalsis and segmentation movements. Serosa: A smooth membrane consisting of mesothelial cells, covering the exterior of abdominal organs and lining the cavity they reside in.