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G.I. System

TermDefinition
Parotid salivary glands located below the ears
Submaxillary (submandibular) salivary glands located at the base of the jaw on the medial edge
Sublingual salivary glands located on either side, below the tongue
Saliva 1) Water 2) Mucin - lubrication 3) Bicarbonate - keep mouth pH near neutrality 4) Salivary amylase - enzyme to break down starch
Buccal cavity empty space in mouth Hard and soft palates
Pharynx Open space behind the buccal cavity Soft palate to larynx/esophagus Joint passageway for food/drink and air Digestive and respiratory system
Larynx Respiratory tract between the pharynx and trachea Vocal cords and thyroid cartilage and epiglottis
Trachea Transports air from the larynx to the bronchi Pale to white in color Cartilage rings
Esophagus Dorsal and parallel to trachea Carries ingested food from pharynx to the stomach
Pleura Membrane lining the walls of the thoracic cavity and surrounding the lungs. Cushions and lubricates
Lungs Organs dorsal to the heart
Heart Located caudally to the larynx and ventrally to the lungs
Pericardium Membrane surrounding the heart Functions to contain heart
Diaphragm Skeletal muscle separates the thoracic cavity from the abdominal cavity
Peritoneum Membrane that lines the abdominal cavity and surrounds the vital organs
Liver Maintain levels of nutrients in the blood Secretion of bile
Gall bladder Stores and excretes bile. Under right lobe of liver
Stomach Produces hydrochloric acid (HCl) and the enzyme pepsinogen to begin digestion of proteins
Greater omentum Part of the peritoneum
Spleen Located to the left of the stomach 1) largest lymphatic organ / production of lymphocytes 2) It removes old and damaged erythrocytes, recycling the components for other uses
Pancreas Found in duodenal loop of S.I. endocrine functions - secretes hormones insulin and glucagon exocrine functions - secretes digestive enzymes
Small intestine Digestion of foodstuffs and absorption of the digestive products
Duodenum Beginning of small intestine
Jejunum Middle portion of small intestine - longest
Ileum Last portion of small intestine ileocecal valve
Mesentery The folds of the peritoneum that connect and anchor the small intestine
Hepatic portal system --
Large intestine --
Anus --
Kidney --
Urinary bladder --
Created by: bubbagum