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Homeostasis, Health & Disease
Introduction
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Homeostasis, Health & Disease
Introduction

Slide 1 - Diapositive

Getting organised:
  • Join the Google Classroom.
  • Join the LessonUp group.
  • Join the WRTS group.
  • Download PDF of the textbook.
  • Does everyone have a notebook?
  • Join this presentation. 

Slide 2 - Diapositive

Slide 3 - Diapositive

Learning Goals:
  • I know what biology is.
  • I know the hierarchy of biological organization
  • I know the different organ systems and their function
  • I know what homeostasis is
  • I know how the body can keep homeostasis

Slide 4 - Diapositive

Key words:
  • biology
  • molecule
  • organel
  • cell
  • tissue
  • organ
  • organ system 
  • organism
  • population
  • ecosystem
  • bioma
  • biosphere
  • integumentary
  • homeostasis
  • homeostasis
  • negative feedback
  • positive feedback
  • sensor
  • controlor
  • effector

Slide 5 - Diapositive

The hierarchy of biological
 organization
molecule
cell
organel
organ
organsystem
tissue
population
organism
ecosystem
Bioma

Slide 6 - Question de remorquage

The hierarchy of biological organization

Slide 7 - Diapositive

name all organ systems you know

Slide 8 - Carte mentale

Organ systems

Slide 9 - Diapositive

Assignment:
Write down all the body systems in your note book and add the function of each body system to them.

Example:

Circulatory system: responsible for transport through the body

Slide 10 - Diapositive

reproductive system
urinary system
respiratory system
digestive system
lymphatic system
endocrine system
circulatory system
nervous system
muscular system
skeletal system
integumentary system
facilitates gas exchange between cells and the environment
Breaks down food into usable nutrients
Responsible for transport through the body
Extracts and excretes dissolved waste product from the blood
secretes chemical signals that allow body systems to respond to environmental changes and to one another
allows us to perceive and respond to the world around us
gives the body structure 
 largest organ of the body that forms a physical barrier between the external environment and the internal environment that it serves to protect and maintain.
responsible for absorbing fat from the digestive system, maintaining fluid balance, and supporting the cells of the immune system
facilitates the production of offspring
Allows the body to move

Slide 11 - Question de remorquage

Body systems and their functions
  • Integumentary system - The largest organ of the body that forms a physical barrier between the external environment and the internal environment that it serves to protect and maintain.
  • Muscular system - Allows the body to move
  • Reproductive system - facilitates the production of offspring
  • Endocrine system - secretes chemical signals that allow body systems to respond to environmental changes and to one another
  • Urinary system - Extracts and excretes dissolved waste product from the blood
  • Digestive system - Breaks down food into usable nutrients
  • Lymphatic system - responsible for absorbing fat from the digestive system, maintaining fluid balance, and supporting the cells of the immune system
  • Respiratory system - facilitates gas exchange between cells and the environment
  • Nervous system - allows us to perceive and respond to the world around us
  • Skeletal system - gives the body structure 
  • Circulatory system - Responsible for transport through the body

Slide 12 - Diapositive

Together the organ systems, with a big role for the endocrine and nervous system, help to keep the body in homeostasis........Homeo what?

Slide 13 - Diapositive

Slide 14 - Vidéo

Homeostasis - the tendency to resist change in order to maintain a stable, relatively constant internal environment.

e.g. body temperature, blood pressure, pH, etc.

Slide 15 - Diapositive

Slide 16 - Vidéo

Slide 17 - Diapositive

High
Low
Low
High
too high
too low

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Hypothalamus

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Slide 23 - Diapositive

Homeostasis - keeping conditions inside the body in balance
                     done by the endocrine system and the nervous system
Negative feedback - causing the opposite reaction: 
                              temperature high      temperature low  
                              temperature low        temperature high
Positive feedback -  causing the reaction get even stronger

Examples of things which are under control: 
                             Blood sugar
                             Water level
                             pH
                             carbondioxide 

Summary

Slide 24 - Diapositive

LESSON 1
DATE:
Learning Goals:
1.
2.

Key words:
1.
2.
3.
4.
5.
6.

Summary of the day:
1.
2.

Slide 25 - Diapositive

Organising the body:


optimum waarde voor omgeving lichaamscellen




Slide 26 - Diapositive