Esophagus(Anterior View)

Esophagus(Anterior View)

1. Esophagus

   • Location: Cervical Part: Neck (inferior); Thoracic part: thorax (Posterior mediastinum); Abdominal part: abdomen (left upper quadrant)
     • Description: Muscular tube; superior third: striated muscle; middle third: striated smooth muscle; inferior third: smooth muscle
       • Function: Conveys food from pharynx to stomach; Peristaltic contractions during swallowing

2. Liver

   • Location: Abdomen; inferior to diaphragm; in upper abdominal quadrants; in epigastric and right hypochondriac regions
     • Description: Accessory digestive organ, Four lobes: right, left, quadrate, and caudate; largest visceral organ
       • Function: Produces, and secretes bile and plasma proteins; stores glycogen, minerals, and vitamins; detoxifies drugs and alcohol; modifies hormones

3. Stomach

   • Location: abdomen; in upper abdominal quadrants; in epigastric and left hypochondriac regions
     • Description: hollow, muscular organ; characteristic "J" shape; between esophagus and duodenum
       • Function: Initiates digestion of protein; mixes gastric contents; peristaltic contradiction move contents toward pyloric sphincter

4. Shier. “Incorrectly Identified Structures.” Anatomy & Physiology Revealed®, anatomy.mheducation.com/html/apr.html?animal=human.