blood pressure

• Biologie
• Middelbare school
• vwo
• Leerjaar 2

Lesson plan

•  Answer heart dissection assignment
• 2.4 blood pressure and heart disease
•  Make exercises: 32 - 38 (this is a very long assignment!)

Read

Page 42-44 

Learning objectives

1. you know the difference between systolic an diastolic pressure and you can explain these terms.
2. you can explain how blood pressure differs between different types of blood vessel.
3. You can explain the different health problems that occur with heart and blood vessels.

Blood pressure

• systolic pressure: high pressure caused by ventricle action: blood flows through arteries and streches them.
  
• Diastolic pressure: pressure in relaxed arteries.
  
• 120-80 mmHg is considered healthy.
  

De hartslag 

Common diseases 

Hypertension

Can lead to:

• heart attack
  
• heart failure
  
• kidney disease
  
• stroke
  

Circulation problems

• Atherosclerosis
•  Fatty materials are deposited on the inside of the artery walls 
• This increases the blood pressure or could eventually block the entire blood flow.

Blockages (blood or plaque)

-Blockage in coronary artery: heart attack.

-Blockage in brain capillary or carotid artery(halsslagader): stroke.

-Blockage in lung: Pulmonary emboly

We are going to measure you blood pressure

Who wants to??

now please make all assignments of 2.4

32-38

38 is a long assignment!

Homework Tuesday 06-12:

Study 2.4 + do 32-28