System Digestion on Man

System Digestion on Man In humans, food is digested with the digestive system starting from mouth and ended at intestine The results digestion will absorbed, while the remains digestion discarded through tools production which specifically. Tools digestion in a way line big divided become two, that is channel digestion and gland digestion. Channel digestion covers cavity mouth (orally), throat, esophagus (esophagus), stomach (ventriculus), cecum, intestines big (colon), And anus. Organ Which produce gland digestion on system digestion humans consist from gland saliva (glandula salivaris), heart (liver), gland wall stomach, and pancreas. Furthermore, come on We talk about it system digestion man This by starting discussion We from channel digestion Which Then We continue by talking organs Which relate with system digestion including glands digestion. 1. Channels Digestion As has been said previously, the digestive tract in humans consists of from cavity mouth (orally), pharynx, esophagus (esophagus), stomach (ventriculus), intestine fine (intestinum), cecum, intestines big (colon), And anus as tool residual release food. Furthermore, come on We review One per One parts digestive system Which form channel digestion Which started from cavity mouth until anus following This! a. Cavity Mouth In the oral cavity there are several tool digestion, that is tongue (lingua), salivary glands (glandula salivaris), And tooth (dentin). Come on we'll see each tool digestion existing _ in in cavity mouth and its role in the digestive process food. 1) Tongue (lingua) Surface tongue coated by layer mucosa Which full with epiglottis bulge Which named papilla Which contain nerve taster. The tongue functions as a sense of taste for food, regulating food on moment chewing and swallowing food, and helps produce sound when We speak. 2) Gland saliva (glandula salivaris) Gland saliva Which there is in in cavity mouth man consists from: a) Gland parotid, located on part end from jaw on in front ears, there are pair, the channel called duct stensen, ends in opposite cheek in. Produce saliva Which shaped liquid (serous) And ptyalin enzyme . b) Gland submandibular located in lower second side bone jaw, present pair, the channel called duct wharton Which ends n base mouth. Produce saliva containing water and mucus (seromucosa). c) Gland sublingualist, located in basic part lower tongue, And ends into _ base mouth. Produce saliva containing water and mucus (seromucosa). Third gland This produce 1.5 liter water saliva (saliva) per day. Heavy flow saliva stimulated by exists food in mouth, see food, kissing smell, And think about food. Each gland it weighs less more 30 grams. If from third gland the Wrong the only one caught infection then it will happen swelling on gland the, the disease called mumps (parotitis). Water saliva (saliva) consists from 99.5% water, contain musin (mucus from protein) And enzyme ptyalin. Ptialin is enzyme amylase Which found in cavity mouth. PH water saliva For person Which Healthy, that is 6.5 – 6,8. Saliva works For wetting food, prevent drought in mouth, digest starch by enzyme ptyalin, kill germs by lysosomes, as buffer, launch function taster, And as protector oral membranes from hot, cold, sour, And base. 3) Tooth (dentin) Based on its function tooth divided become four type, that is incisors _ (Incisivus = I) Which works For cut food, tooth canines (Caninus = C) Which works For tear food, tooth molar face (Premolars = PM), Which works For chew, And tooth rear molars (Molar = M) Which Also works For chew. Man own two set tooth, that is tooth milk amount 20 fruit and teeth permanent amount 32 fruit. All tooth milk will date on when aged 6 – 12 year, Then replaced by appearance tooth permanent. Following is formula tooth milk on man. Tooth stuck in in jaw And protected by gum. On generally, teeth have cross section as following. 1) Peak tooth (corona), that is part Which looks from outside. 2) Neck tooth (coilum), that is part Which protected in in gum. 3) Root tooth (radix), that is part Which embedded in in jaw. Each tooth consists from layer e-mail Which white And hard. E-mail works for protect bone tooth. In in tooth there is cavity tooth or vulva Which contain vessels blood and tendon nerves. Part dentin Which enter to jaw coated substance Which called cement. Bacteria Which life in on the sidelines tooth is Entamoeba gingivalis Which role for elaborate remains food Which left behind in in mouth. b. Throat (Pharynx) Pharynx is meeting channel Respiratory between cavity nose with the throat And channel digestion between cavity mouth And esophagus. That hole going to throat, called glottis And closed by valve Which called epiglottis during swallowing. The throat consists of three parts, namely the nasopharynx , oropharynx , and eustachian tube . c. Esophagus Esophagus based on historically consists of four layer, that is layer mucosa, layer submucosa, layer muscularis, And layer adventitia. The esophagus is a connecting channel between the mouth and stomach. One thirds part on it consists from striated muscle And two thirds part underneath consists from smooth muscle . Food on channel This only takes time six second For until to stomach because of contractions muscle striated on One thirds part of the esophagus on. Movement This happen Because muscle elongated and circular wall esophagus contract alternately. d. Stomach (Ventriculus) Stomach is bag big Which located in adjacent left cavity part of the stomach on And appropriate is at in lower diaphragm. Stomach consists from: 1) layer peritoneal outside Which is layer serous; 2) layers muscular which consists of from layers circular (circular), layers musclesb obligus (oblique), and layers muscles longitudinal (elongate); 3) layer submucosa Which consists from network areoral containing vessels blood and lymph; 4) layer mucosa Which located in adjacent in, thick, And consists on lots of wrinkles or rugae , wrinkles the will is lost If organ This expands because containing food And Lots emit mucus. Picture. Stomach Anatomy e. Intestines Fine (Intestinum) Picture. (a) Cross section duodenum (b) cross section detailed One villus. Intestines fine consists from three part, that is duodenum (intestines 12 finger) Which length ± 0.25 cm, Jejunum (intestines blank) Which length ± 7 meters, And ileum (gut absorption) Which length ± 1 meters. On layer in or tunica mucosa, jejunum and ileum there is protrusions fine Which called villus (plural = villi) Which works for expand surface wall intestines in absorption sari food. Carbohydrate absorbed in form glucose, whereas proteins absorbed in shape sour amino. Glucose And sour amino brought by blood to heart through portal vein hepatica . In heart glucose Which excessive changed become glycogen with help hormone insulin. Glycogen saved in muscle And heart, whereas the glucose required from heart streamed to heart through vein cava inferior. Fat is digested into fatty acids and glycerol. Before being absorbed by the intestines, acid fat emulsified moreover formerly by salt bile, Then digested by enzymes lipase become sour fat And glycerol. Absorption through process diffusion, osmosis, filtration, And transportation active. In in villus, sour fat And glycerol brought by vessels lymph (lymph ) which empties into the vena cava, while bile salts will enter inside blood going to heart For made bile return. Vitamin And bile salts No experience digestion. Sap intestines (success entericus) generated by two type gland, that is burner gland And gland leiberkuhn. Gland Burners is at in duodenum produces mucin And enzyme proteolysis (breaker proteins), whereas gland Leiberkuhn be in throughout intestines fine, ends in gaps villi produce sap intestines. Intestinal sap contains organic and inorganic materials. Organic materials consist of: enzymes as following. 1) Amylase Which break starch become disaccharide. 2) Pepsin Which break peptide become sour amino. 3) Erepsin originate from erepsinogen by enzyme enterokinase with process as follows. 4) Lipase, is enzyme breaker glycerides (fat) become sour fat and glycerol. 5) Disasterized, is breaker disaccharide become monosaccharides. 6) Phosphatase, enzyme For expedite process absorption sour fat and glucose. 7) Enterokinase, is enzyme trypsinogen from pancreas become trypsin. f. Cecum (caecum) At the end of the small intestine there is a valve called the Bauhini valve ( ileocecal valve). Which works prevent food enter return to intestines fine. Intestinal base big called cecum with its length Which called tassel worms (appendix). On ruminant or animal chew breed, cecum shaped pocket green _ old. Cecum works keep food rather long so that in The cecum occurs in the digestion of food by bacteria, especially the digestion of cellulose. Bacteria _ This produce enzyme cellulose For solve cellulose become glucose. g. Intestines Big (Colon) On intestines big No there is villi so that No happen absorption food essences , but happen absorption water so that feces become more congested. In the colon Also happen process decay remainder digestion by bacteria Escherichia jerk off produce gas H2S , _ NH 4 , indole, skatole, phenol, And vitamin K (plays arole in process freezing blood). Colon or intestines big This divided become three part, ie ascending or intestines fine, transverse or intestines flat, And descending or intestine descends. h. Anus Part colon most end called rectum Which length ± 15 cm And ends with anus (rectum). On anus there is muscle volunteer Which controlled by will We.