Y3V-T1-LSN7

• Biologie
• Voortgezet speciaal onderwijs
• Leerroute 3

 Anatomy & Homeostasis

Y3V-T1-LSN7

Homeostasis & Glucose regulation

Learning Goals LSN6:

• I know what homeostasis is
• I know how the body can keep homeostasis
• I can name and explain an example of homeostasis in at least 1 other animal 
• I know examples of homeostasis in the human body.
• I know how our body regulates temperature.
• I can name and explain how cold blooded animals differ from humans in regulating their body temperatures.

Body temperature drops

Blood vessels dilate

Heat is retained

Sweat glands secrete fluid

Heat is lost to the environment

Learning Goals LSN7:

• I know examples of homeostasis in the human body.
• I know how our body regulates sugar levels.

Key words:

• Pancreas 
• Liver
• Insuline
• Glucagon
• Glycogen
• Glucose

• homeostasis
• negative feedback
• positive feedback
• sensor
• controlor
• effector

Homeostasis

All organs and organ systems working together,creating a balance inside your body.

Negative and positive feedback loops are used to maintain this balance. 

High

Low

Low

High

too high

too low

Glucose level in blood

Glucagon

Insulin

Hypothalamus

• Food is eaten, containing carbohydrates. Carbohydrates are broken down into glucose, which enters the bloodstream. 

• Rising blood glucose levels: are detected by the pancreas. The pancreas (beta cells) releases insulin: in response. 
• Insulin helps cells take up glucose: for energy or storage, which then causes blood glucose levels to drop. 
• The decreased blood sugar signals the pancreas to reduce insulin release . 

• Food is eaten, containing carbohydrates. Carbohydrates are broken down into glucose, which enters the bloodstream. 

• Rising blood glucose levels: are detected by the pancreas. The pancreas (beta cells) releases insulin: in response. 
• Insulin helps cells take up glucose: for energy or storage, which then causes blood glucose levels to drop. 
• The decreased blood sugar signals the pancreas to reduce insulin release . 

food/carbs

Pancreas

Pancreas

Insulin

Learning Goals LSN7:

• I know examples of homeostasis in the human body.
• I know how our body regulates sugar levels.

Homework

• Read the following pages in your textbook:p.100-101 
• Make the assignments LSN7 on classroom and hand them in before the lesson.
• Study the keywords (using Studygo) and check if you manage the learning goals (by repeating lessonup exercises)