Y2_T3_LSN_3.3

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Slide 1: Slide
ScienceMiddelbare schoolhavo, vwoLeerjaar 2

This lesson contains 15 slides, with interactive quiz, text slides and 2 videos.

Items in this lesson

Get ready
  • Your Macbook (join the LessonUp)
  • Your notebook.
  • Your textbook.
  • Pen & highlighter

Slide 1 - Slide

Topic 3
ORGANIZING THE WORLD

Slide 2 - Slide

Plan for today
  • Homework check
  • Explanation T3.3 The heart
  • Make homework 

Slide 3 - Slide

Homework check:
check your hw answers
use a different colour 
show your work when called
timer
15:00

Slide 4 - Slide

3.3 The Heart

Slide 5 - Slide

Learning goals
I can....
  • describe how the electrical signal travels through the heart and causes the three phases of the cardiac cycle.
  • describe how blood pressure is created by the heart.
  • follow the path of the blood through the circulatory system.
  • name the arteries and veins based on the organs they are connected to.
  • describe the role of the valves in the heart and how they create the heart tones.
  • describe how blockages in the circulatory system can cause major problems for the body.  

Slide 6 - Slide

Key words
  • Heart
  • Atrium
  • Ventricles
  • Portal vein
  • Coronary Arteries
  • Clots
  • Stroke
  • Heart attack

Slide 7 - Slide

Aorta
pulmonary artery
pulmonary vein
vena cava
right atrium
right ventricle
left atrium
left ventricle
tricuspid valve
aortic  valve
mitral valve
pulmonary valve
septum
apex

Slide 8 - Drag question

The Phases of the cardiac cycle
  • Atria contract → first peak, before the large peak
Pushes blood into the ventricles

  • Ventricles contract → large peak
Pushes blood out of the heart

  • Rest → last peak, after the large peak
Muscle relaxes, blood flows into the atria

Slide 9 - Slide

What controls it.
Nerve cells in the right atrium produce electrical signals

Signal reaches both atria → contract

Signal runs down the wall and up the sides → ventricles contract → highest blood pressure

Moment without signal → rest → lowest blood pressure

Slide 10 - Slide

Slide 11 - Video

Names of blood vessels
Arteries
named after the organ they go to
Veins
named after the organ they come from

Special mention: for the portal vein
Goes from the intestine to the liver. 
(Liver filters the blood)

Slide 12 - Slide

Problems with the heart
Clots form and block the vessel

In the coronary artery → heart attack
In the brain → stroke


Slide 13 - Slide

Slide 14 - Video

Homework
  • Study the glossary of 3.3
  • Complete the exercises of 3.3 (p. 126-133)
  • Prepare chickenheart experiment in labjournal

Slide 15 - Slide