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DIGESTIVE SYS

DIGESTIVE

QuestionAnswer
GASTROINTESTINAL TRACT MOUTH, PHARYNX, ESOPHAGUS, STOMACH, S. INTESTINE, L. INTESTINE, RECTUM, ANAL CANAL, ANUS.
ACCESSORY ORGANS TEETH, TONGUE, SALIVARY GLANDS, LIVER, GALL BLADDER, PANCREASE
4 LAYERS OF GI TRACT WALL MUCOSA SUBMUCOSA MUSCULARIS SEROSA
MUCOSA LAYER INNER MUCOUS MEMBRANE W/ SIMPLE COLUMNAR EPITH & LAMINA PROPRIA
MUCOSA LAYER CHARACTERIZE BY FOLDS, GLANDS, PROJECTIONS
MUSCULARIS MOCUSA IN MUCOSA LAYER THIN MUSCLE BAND CONTROLLING LOCAL MUCOSA MOV'TS & RESPONSES
SUBMUCOSA LAYER BINDS MUCOSA TO MUSCULARIS
SUBMUCOSA IS CHARACTERIZED BY BLOOD, LYMPHATIC VESSLES WHICH ABSORBS NUTRIENTS FROM DIGESTIVE TRACT
WHAT STIMULATES SUBMUCOSAL GLANDS AND MUSCULAIS MUCOSA SUBMUCOSAL NERVE PLEXUS
MUSCULARIS THICKEST LAYER * 2 SMOOTH MUSCLE LAYERS * 3 LAYERS IN STOMACH
MUSCULE LAYERS 1) INNER CIRCULAR LAYER 2) LONGITUDINAL MUSCLE LAYER
CIRCULAR LAYER *DECREASE DIAMETER *FORMS SPHINCTER VALVES
WHAT CAUSES PROPULSION, MIXING AND PREVENT BACK FLOW SPHINCTER VALVES
DECREASES LENGTH IN TRACT WALLS LONGITUDINAL MUSCLE LAYER
WHAT NERVE PLEXUS STIMULATE MUSCLE LAYER MYENTERIC NERVE PLEXUS
MYENTERIC NERVE PLEXUS RESPOND TO STRETCH, ANS
SEROSA OUTER LAYER VISERAL PERITONEUM - SECRETES SEROUS FLUID
VAGUS NERVE SERVES WHICH LAYER IN THE TRACT WALL SEROSA
THE SEROSA IS MOSTLY UNDER WHAT DIVISION OF ANS PARASYMPATHETIC
FUNCTION OF ORAL CAVITY ANALYZE FOOD, MOISTEN FOOD, FORM BOLUS, INITIATES ENZYMES FOR DIGESTION
ORAL CAVITY MADE UP OF HARD PALATE , SOFT PALATE, UVULA ( POSTERIOR TO SOFT PALATE), TONGUE,SALIVARY GLANDS,TEETH
HARD AND SOFT PALATE CONTAIN WHAT TYPE OF TISSUE STRATIFIED SQUAMOUS EPITHELIUM
UVULA BLOCKS NASOPHARYNX WHEN SWOLLOWING IS THE SWALLOWING CONTROL MECHANISM AND PREVENTS FOOD FROM GOING INTO THE NASAL CAVITY
TONGUE INTRINSIC AND EXTRINSIC SKELETAL MUSCLES
SALIVARY GLANDS PRODUCE SALIVA, WATER, AMALAYSE, ANTIBACTERIAL AGENTS, MUCUS
THE SALIVARY GLAND IS COMPRISE OF 3 GLANDS, NAME THEM 1) PAROTID GLANDS 2) SUBLINGUAL GLANDS 3) SUBMANDIBULAR GLANDS
WHERE IS THE PAROTID GLAND FOUND OVER MASSETER MUSCLE
GLANDS FOUND UNER TONGUE SUBLINGUAL GLANDS
GLANDS FOUND UNDER BOTH SUBLINGUAL AND MANDIBULE SUBMANDIBULAR GLANDS
TEETH *32 TEETH * 2 INCISORS, 1 CANINE, 2 PREMOLARS, 3 MOLARS -- ON ONE SIDE
WHAT IS THE NAME OF THE BONE LIKE MATERIAL COMPOSING MOST OF TEETH DENTIN
ABOVE GUM LINE AND IS COVERED BY ENAMEL CROWN
HARDEST SUBSTANCE IN BODY AND ENAMEL
ROOT BELOW GUM LINE, ARE PROJECTIONS THAT ANCHOR TEETH IN JAW BONE
ANOTHER NAME FOR GUM GINGIVAE
WHAT COVERS SURFACE BTW TEETH GUM OR GINGIVAE
PERIODONTAL LIGAMENTS *LINES AVEOLAR SOCKETS *ANCHOR TEETH *ABSORB SHOCK
FUNCTION OF CEMENTUM SECURES TOOTH TO PERIODONTAL LIGAMENT
WHAT CONTAINS BLOOD VESSELS AND NERVES IN TEETH CENTRAL (PULP) CAVITY
PHARYNX - THROAT NASOPHARYNX, OROPHARYNX & LARYNGOPHARYNX
ESOPHAGUS PROPELS FOOD INTO STOMACH
LOCATION OF ESOPHAGUS MEDIASTINUM OF THORACIC CAVITY
TRANSTITION OF EPITHELIUM LAYER FROM MOUTH THRU ANUS MOUTH, PHARYNX - STRATIFIED SQUAMOSE EPITHELUM OPENING OF STOMACH - SIMPLE COLUMNAR ANUS - STRATIFIED COLUMNAR
DEGLUTINATION BEGIN WITH SWALLOWING IN ESOPHAGUS INVOLVES VOLUNTARY AND IN VOLUNTARY MUSCLES
ANOTHER NAME FOR ESOPHAGEAL SPHINCTER CARDIAC SPHINCTER
WHERE IS THE ESOPHOAGEAL (CARDIAC) SPHINCTER FOUND AT OPENING OF STOMACH
WHEN DOES CARDIAC SPHINCTERS OPENS? ONLY WHEN FOOD NEEDS TO COME THRU
2 WAYS ESOPHAGUS WALL DIFFER FROM LOWER DIGESTIVE WALL STURCTURE 1) CONTAINS STRATIFIED SQUAMOUS NOT SIMPLE COLUMNAR 2) AVENTITIA ON OUTER LAYER NOT VISERAL PERITONEUM (SEROSA)
6 FUNCTIONS OF DIGISTIVE SYSTEM 1) INGESTION 2) PROPULSION 3) MECHANICAL DIGESTION 4) CHEMICAL DIGESTION (ENZYMES) 5) ABSORTION 6) DEFECATION
WHAT DOES PROPULSION INVOLVES INVOLVES SWOLLOWING (DEGLUTINATION), PERISTALIS
WHAT IS PERISTALIS WAVE LIKE CONTRACTION THAT STARTS WHEN A BOLUS OF FOOD IS SWOLLOWED AND MOVES THU THE DG TRACT. BOLUS MOVES ---> ESOPHAGUS ---> STOMACH (TURNS INTO LIQUID CALLED CHYME)--->CON'T IN INTESTINE ->S.I ---> L.I (WATER IS ABSORB HERE INTO BLOOD STREAM-> ANUS
WHAT OCCURS IN MECHANICAL DIGESTION 1)CHEWING - MASTICATION 2)CHURNING - STOMACH 3) SEGMENTATION- LOCALIZE MIXING
HOW DOES ABSORPTION OCCUR IN THE DIGESTIVE TRACT LUMEN THRU EPITH. AND INTO BLOOD 3 MEMBRANE
WHAT IS CHEMICAL DIGESTION ENZYMES ARE SECRETED TO BREAKDOWN MICORMOLECULES INTO MICROMOLECULES, THEN ABSORB ACCROSS TRACT WALLS...
DEFECATION RIDDING ANYTHING THAT CANNOT BE ABSORB
FUNTION OF RECTUM STORES FECES
WHAT OPENS THROUGH OUTSIDE THROUGH ANAL CANAL AND ANUS RECTUM
INTERNAL ANAL SPHINCTER INVOLUNTARY MUSCLE IN ANUS
EXTERNAL ANAL SPHINCTER VOLUNTARY
ANAL SPHINCTER - EXTERNAL AND INTERNAL CONTROL MOV'T
EPITH. TISSUE CONTAINED ANAL CANAL STRATIFIED SQUAMOUS
MASS PERISTALIC MOV'T WAVES OF MUSCLE CONTRACTION MOVING FECES TO RECTUM
GASTRIC GLANDS CONTAIN 1) CHIEF CELLS 2) PARIETAL CELLS 3) MUCOUS CELLS 4) G CELLS OR ENTEROENDOCTRINE CELLS 5) HORMONE
CHEIF CELLS SECRETE PEPSINOGEN (INACTIVE)
PARIETAL CELLS HCL AND INTRINSIC FAC
HORMONE SECRETES GASTRIN IN STOMACH
Created by: d1975f