LIVER II

Assimilation

Q. HOW ARE FOOD SUBSTANCES TRANSPORTED &UTILIZED?CHAPTER 6 PG 105

What did we learnt?

Adaptation of small intestines Small intestines Liver Fate of glucose in liver

HEPATIC PORTAL VEIN

glucagoninsulin

Adaptations of the intestinal wall

One-cell thick epithelium

Numerous blood vessels to maintain

concentration gradient.

Increase Surface area

Adaptations of the intestinal wall

One-cell thick epithelium

Numerous blood vessels to maintain

concentration gradient.

Increase Surface area

Absorption at the small intestines villus

glucagon

insulin

glucagon

insulin

insulin

Fate of glucose continued….

Hey you! I want you, Insulin to

come work for me at my factory.

Insulin summoned to factory

insulin

insulin insulin

insulin

insulin

In the factory…What are you looking at?

Get moving!

Insulin hard at work

Glycogen Storage Shelf

insulin

Good job… But partners all over the body are now

having a shortage. You better unpack

those glucose!

But Boss… erm… I only know how to

pack.

WHAT? You’re FIRED!

So Mr. Liver went back to the blood market to find more laborers.

glucagon

glucagon

glucagon

glucagon

glucagon

glucagon

glucagon

glucagon

Glucagon at work…

glucagon

K. Boss I’m done.

K.Nothing

else to do already?

You’re FIRED!

=(

We can’t go back to mother pancreas…

glucagon

glucagon

glucagon

glucagon

glucagon

glucagon

glucagon

insulin

insulin

THE END

What are the other functions of the liver?

Liver Function

Liver Function

Besides the regulation of glucose, what are the other functions of liver?

•Production of bile•Iron storage•Protein synthesis•Deamination•Detoxification

Liver Function

Besides the regulation of glucose, what are the other functions of liver?

•Production of bile•Iron storage•Protein synthesis•Deamination•Detoxification

Deamination

Deamination

Urea glucose

Detoxification

Detox= remove toxins

Alcohol Acetaldehyde

Alcohol dehydrogenase

What happens if you drink too much alcohol?

Liver cirrhosis

Summary

Liver Function

Regulate Blood glucose

Store Iron

Synthesize Proteine.g. albumins,

globulins, fibrinogen

Make Bile

Deamination

Detoxification

Stations 1- 8Mouth

Esophagus

Stomach

Large intestine

Small intestine

4 & 5

2

3

1

6

Anus7

Parts associated with the digestive system: Pancreas

Liver

Gall bladder

The four stages of Holozoic Nutrition

Stage Function

Feeding The intake of food into body

Digestion Breaking down of large food molecules into soluble molecules.

Absorption Process whereby digested materials are taken into the body

Assimilation Absorbed food are converted into new protoplasm to provide energy.

Key words…

Peristalsis

Antagonistic

Deamination

Longitudinal muscles

glycogen

Microvilli

Duodenum

Chyme

glucagon

bolusHepatic portal veinbile

epithelium

enterokinase