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level: Esophagus and Stomach

Questions and Answers List

level questions: Esophagus and Stomach

QuestionAnswer
What makes up the pharynxa. nasopharynx b. oropharynx c. Laryngopharynx
Function of the Pharynx- passageway for air and food    - contains vocal cords - functions in swallowing, breathing, and voice production.
Function of the Nasopharynxallows air to flow from the nose through the rest of the pharynx and into the lungs.
What is located in the Nasopharynx?- nasal cavity - soft plate - Hard plate - Entrance to Eustachian Tube
Function of Oropharynxallows for swallowing and speech.
What is located in the Oropharynx?- Soft plate - hard plate - Oral cavity - Tongue
Function of the Laryngopharynxpassage for food and air - during swallowing, the entry of od air is temporarily stopped to allow food to pass safely to the esophagus.
What is located in the Laryngopharynx?- Epiglottis - Larynx
Define Epiglottisa flap in the throat that keeps food from entering the windpipe or lungs. Allos air to flow into larynx Is closed during swallowing to allow foods and liquids to enter esophagus.
what is the pharynx lined with?stratified squamous epithelium
Label the covered structuresPharynx a. nasopharynx b. Oropharynx c. Laryngopharynx
What structures are found in the Nasopharynxentrance to eustachian tube nasal cavity soft plate hard plate
What structures are found in the oropharynx?portion of hard and small plate Oral cavity Tongue
What structure are found in the Laryngopharynx?Epiglottis and the Larynx
Define the term Esophagusa muscular tube that can contract or expand in which food passes connects the oral region with the stomach region
Give a description of the gross anatomy of the esophagusthe esophagus begins as a continuation of the pharynx and then joins the stomach inferior to the diaphram.
Name this structureEsophagus
Label the structuresa. Pharynx b. Tongue c. Spinchter d. Trachea e. esophagus d. cardiac spinchter
Define cardiac spinchterthe cardiac spinchter closes the lumen to prevent stomach acid from entering the esophagus
Label covered structureMucosa - stratified squamous epithelium
Label covered structuresSubmucosa - areolar connective tissue
Label covered structuresAdentitia - fibrous connective tissue
Define the stomach-site of where food undergoes a very serious break down and churns into chyme. -the internal environment is very acidic/ has a low pH -secretes hydrochloric acid - secretion of digestive enzymes (pepsin)
What are the regions of the stomach?1. Cardia part 2. Fundus 3. Body 4. Pyloric part
Define Cardiathe cardia surrounds the opening of the esophagus into the stomach.
Define FundusThe fundus of the stomach which is the area above the level of the cardial orfice (opening where the esophagus communicates with the stomach)
Define the body of stomachThe body of the stomach is the largest region of the stomach.
Define the pyloric part of the stomachThe pyloric part of the stomach is the distal end of the stomach and is divided into 2 parts - pyloric antrum -pyloric canal
Label the covered structureCardia
Lable the covered structureFundus
Label the covered structureBody
Label the covered structuePyloric region- pyloric antrum -pyloric canal
Define the pyloric sphincterband of smooth muscle, acts as a valve to control the flow of partially digested food from the stomach to the small intestine
What are the different layers of the stomach?top line is the longitudinal muscle layer middle line is the circular muscle layer bottom line is the oblique muscle layer