Digestive system Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
enamel | -hardest tissue -ca phosphate/carbonate -no sensation |
Dentin | -similar to enamel -have cells -ondontoblasts in pulp |
Pulp | -soft tissue -BV, lymphatic, nerves |
Cementum | -calcified CT -covers root |
periodontal ligament | -collagen fibres -connect bone of socket to cementum -rapid turnover |
Tongue muscles | -longitudinal -transverse -vertical -movement in all directions |
Tongue surface | papillae=fungiform + filiform + circumvallate |
Salivary glands (3 types) | -(1)parotid -(2)submandibular -(3)sublingual |
salivary glands function | -parasympathetic stimulation -smell,taste,thought,seeing food -saliva=water+mucous+enzymes -lysozymes & amylase |
Lysozyme & amylase | -antibacterial -breaks down starch debri |
peritoneal cavity | -serous fluid |
large folds | -bind organs together & to abdominal cavity -contain BV,lymphatics & nerves |
Greater omentum | -largest fold -drapes over colon & small instest. -fatty apron |
Falciform ligament | -liver to ab. wall & diaphragm |
lesser omentum | -suspends stomach & dueodenum from liver |
mesentry | -jejunium & ileum to ab. wall -double layered |
four tunics of the gut | (1)mucous membrane (2)submucous membrane (3)external SM (4)serosa |
(1)mucous membrane | -epithelium(protection & absorption) -lamina propria (soft CT,defensive cells, BV lymph,nerves) -muscularis mucosae(mucous) |
(2)submucosa membrane | -thick bed CT -BV, lymph, nerves -movement & connection betwn. muscle & mucosa |
(3)smooth muscle | -peristalisis -inner=circular -outer=longitudinal |
(4)serosa | -slippery outer covering -2layered -outer mesothelium in CT |
Esophagus function | -transport -protection -little secretion -noabsorption |
Esophagus 4 normal layer except: | -lacks serosa -SM & skeletal muscle in upper -sacrificial mucous mem. |
stomach -4regions | -Fundus -cardia -body -pylorus |
Stomach functions (5) | -secretion:enzyme,acids -Absorption:H2O,ions,drugs -digestion:by pepsin -transport:mixing waves -protection:against microbes |
Stomach 4 layers usual except: | -pits in epithelial -secreting cells -3-layers external muscle |
mucosa of stomach (cells involved) | -surface mucosa -undifferentiated -mucous neck cells -parietal -chief cells -gastrin (enteroendocrine) |
Surface mucosa cells | -insoluble -alkaline mucus -protects from acids & pepsin |
Chief cells | -lipase -pepsinogen-->pepsin by acid |
Undifferentiated | -stem cells -divide forming new epithelium |
parietal cells | -HCl kills microbes |
Gastrin cells (enteroendocrine) STOMACH | -gastrin(in blood)stim: secretion of pepsinogen & acid, muscle contraction, pyloric sphincter relaxation |
mucous neck cells | -soluble alkaline mucous -mealtimes |
Liver | -huge gland -made of hepatocytes (epi.cells) -derived from embryonic endoderm |
Hepatocytes Functions (4) | -multitalented(more than 500 diff. met. fn) -glycogen/glucose storage & release -bile syn. & secretion -syn. plasma proteins -removal of toxins |
Hepatocyte requires..? (3) | -nutrient laden blood -oxygenated blood -ducts(drain bile) |
Pancreas | -dual organ -endocrine & exocrine |
Pancreas [exocrine] | -manufactures precursor digestive enzy -secret alkaline "pancreatic juices" -active in duodenum |
Pancreatic enzyme digest... | -most food substance -lipids, proteins, carbs, nuceic acids) |
Pancreas [endocrine] | -secrete hormones into blood stream -reg. blood glucose (insulin & glucagon) |
Small intestine (3 parts) | -dueodenum -jejunum -ileum |
Duodenum Fn | -biliary & pancreatic ducts |
jejunum Fn | -primary chem. digestion & nutrient absorption |
Illeum | -terminates at ileocecal sphincter -controls entry of materials |
Small intestine usual except: | -specialised mucosa incr. SA -submucosa downstream from pyloric contains mucous glands |
glands of brunner | -in small intestine -below pyloric sphincter -mucous gland |
Increasing SA in small intestine (3) | (1)plicae (2)villi (3)microvilli |
incr. SA (1)Plicae | -circular folds -1cM -mucosa surrounding -submucosa in core |
incr. SA (2)villi | -fingers -1mm -epi. covers -lamina propria covers |
incr. SA (3)microvilli | -finger -1mircoM -brush border -on indiv. absorptive cells -cell mem. covers -cytoplasm inside |
Paneth cells | -bactericidal enzyme lysozyme(phagocytic) |
Goblet cells | secret mucus |
Epithelial cells in small instestine are............? | short lived |
lymph vessel in villi [small instestine] | -lacteal -SM fibres contract & lymph milked along |
enteroendocrine cells stimulated by ______ which cause secretion of ______ | -arrival of chyme -secretin=stim. pancreatic juices released |
Large intestine functions (5) | (1)absorption(salt&water) (2)secretion(mucus) (3)defacation (4)conversion(chyme->feces) (5)bacteria (produce vits) |
ileocecal valve | -controls flow chyme -illeum->cecum |
7 parts of large intestine | cecum -appendix -ascending colon -transverse colon -descending colon -haustra -sigmoid colon -rectum |
cecum | -dilated pouch -bacteria digest here (not enzymes) |
Appendix | -vestigial |
large intestine usual except: MUCOSA | -no vili -enterocytes -goblet no paneth -renewal of wall -many lymphocytes |
large intestine usual except: External muscle | -longitudinal muscle contract to form pockets (Haustra coli) |
mucosa of colon | -columnar absorptive (enterocytes) -goblet -undiff. -WBC |
Created by:
meglet
Popular Anatomy sets