B1 - The digestive system - Listening

the DIGESTIVE system

Let's learn something more about our digestive system

The digestive system is also known as the GI (which means gastrointestinal tract). The GI tract consists of "hollow organs" (i.e. empty) which are joined in a long, twisting tube from the mouth to the anus.

VIDEO

Let's watch a video to find out more about our digestive system.

Remember to take notes

For better quality of the video turn off the music in the background.

VOCABULARY

submandibular gland

amylase

rectum

gaster

sublingual gland

bolus

large intestine

ventriculus

saliva

esophagus

small intestine

liver

salivary glands

propel

pancreas

gallbladder

digestive enzyme

esophageal lumen

stomach

parotid gland

circular muscle fibers

gastric glands

occur

body

circular muscle fibers

mucus

interdigestive tract

antrum

overlay

gastric acid

peristalsis

gatekeeper

esophageal sphincter

mucosa

fundus

duodenum

longitudinal muscle layer

rugae

hydrochloric acid

cardia

pancreatic secretions

trypsinogen

pepsin

free fatty acid

ampulla of Vater

tripsin

intrinsic factor

diglyceride

proenzymes

maltose

lipase

chyme

sodium hydrogencarbonate

isomaltose

pepsinogen

pyloric sphincter

enterokinase

cleave

triglyceride

bile

chylomicrons

ascending colon

droplets

villi

lipoprotein

transverse colon

emulsification

blood capillaries

microvilli

descending colon

jejunum

lymphatic capillary

Bauhin's valve

anus

ileum

lacteal

decomposition of fiber

excretion

villus

transferrin

Your idiom for today

Have no stomach for something

Let's check what you remember

What does the human digestive system consist of?

What happens with the food in your mouth?

What is the esophageal lumen?

How can the bolus be transported if the person is standing on their head?

What are the six areas of the stomach?

What is the structure of the stomach?

What causes the gastric acid's production?

What is the role of esophageal sphincter?

What does gastric juice consist of?

What is the role of the hydrochloric acid?

How is vitamin B12 absorbed?

Why does pancreatic juice contain sodium hydrogencarbonate?

Why is pancreatic lipase more efficient than the gastric lipase?

Where is bile produced and stored?

What are the sections of the small intestine?

What are villi and what is their role?

What is the role of the ileum?

What is the purpose of bacteria in the large intestine?

THANK YOU!

The food is broken up by the teeth, and then mixed with saliva which contains an enzyme called amylase that begins to digest carbohydrates. It splits carbohydrates into smaller units. The mixture of food with saliva, also known as bolus, is pushed into the throat by the tongue and finally into the esophagus which propels the bolus to the stomach.

kropelkiemulsyfikacjajelito czczejelito krętekosmekkosmkinaczynia włosowatewłosowate naczynia limfatycznenaczynie mleczowetransferrynachylomikronylipoproteinamikrokosmkizastawka Bauhinarozkład włókienokrężnica wstępującaokrężnica poprzecznaokrężnica zstępującaodbytwydalanie

dropletsemulsificationjejunumileumvillusvilliblood capillarieslymphatic capillarylactealtransferrinchylomicronslipoproteinmicrovilliBauhin's valvedecomposition of fiberascending colontransverse colondescending colonanusexcretion

pepsynaczynnik wewnętrznylipazapepsynogentrójglicerydwolny kwas tłuszczowydiglicerydtreść pokarmowazwieracz odźwiernikażółćwydzieliny trzustkowebrodawka Vateraproenzymywodorowęglan soduenterokinazatrypsynogentrypsynamaltozaizomaltozarozszczepiać

pepsinintrinsic factorlipasepepsinogentriglyceridefree fatty aciddiglyceridechymepyloric sphincterbilepancreatic secretionsampulla of Vaterproenzymessodium hydrogencarbonateenterokinasetrypsinogentripsinmaltoseisomaltosecleave

występowaćprzewód pokarmowyperystaltykadno żołądkawpust żołądkatrzon żołądkajama odźwiernikowaodźwiernikdwunastnicapodłużna warstwa mięśniowaokrężne włókna mięśniowewarstwa mięśni skośnychpokrywaćbłona śluzowafałdy żołądkowegruczoły żołądkoweśluzkwas żołądkowyzwieracz przełykukwas chlorowodorowy

occurinterdigestive tractperistalsisfunduscardiabodyantrumgatekeeperduodenumlongitudinal muscle layercircular muscle fibersoblique muscle layeroverlaymucosarugaegastric glandsmucusgastric acidesophageal sphincterhydrochloric acid

odbytnicajelito grubejelito cienkietrzustkażołądekżołądekżołądekwątrobapęcherzyk żółciowyślinianka przyusznaślinianka podżuchwowaślinianka podjęzykowaślinaśliniankienzym trawiennyamylazaprzeżuty kęsprzełykpopychaćprześwit przełyku

rectumlarge intestinesmall intestinepancreasstomachgasterventriculuslivergallbladderparotid glandsubmandibular glandsublingual glandsalivasalivary glandsdigestive enzymeamylasebolusesophaguspropelesophageal lume

It has a longitudinal muscle layer on the outside. Underneath we can find circular muscle fibers. In addition to this, there is an oblique muscle layer overlaying the mucosa. On the inside there are rugae that allow the stomach to enlarge when food is consumed. The stomach wall contains gastric glands which produce mucus, which is able to protect the stomach wall from the secreted gastric acid.