3.6 Heatly life style

• Biologie
• Middelbare school
• havo
• Leerjaar 3

Welcome- 3EH

• Enter the room quietly
• Take your seat
• Get you book, notebook, and a pen
• Wait quietly for the instructions in the next dia.

Get to work

Complete assignment 9-10 , basic 3.5
p.217-218

- work individually

- Write in your book

Done? 

Start assignment 11.

Today goals 

• Can describe how to keep your heart and blood vessels healthy.
  
• Can name the effects of alcohol in the short term and in the long term.
  

What makes a life style healthy?

Watch the video (next dia)

- What is diastolic pressure?

- What is systolic pressure?

- What is a healthy blood pressure?

- Why is it bad when it is too high or too low?

0

What is the diastolic blood pressure?

1. The blood pressure when the heart muscles are relaxed
2. The blood pressure when the heart muscles are contracted

What is the systolic blood pressure?

1. The blood pressure when the heart muscles are relaxed
2. The blood pressure when the heart muscles are contracted

What is a healthy blood pressure?

1. 120/80 mmHg
2. 140/90 mmHg
3. 80/40 mmHg
4. 200/220 mmHg

Why is it bad if it is too high or too low?

1. it causes damage to blood vessels
2. It is doesn't really matter
3. You get really tired
4. You feel sick

2 sides of the heart work together

Diastole

-Heart muscles are relaxed

-Blood flows into the atria from the veins

Systole (atria or ventricles)

Heart muscles contract

1. Atria contract 
- blood forces into the ventricles 

2. Ventricles contract 
- blood forced into the arteries 

Atherosclerosis

The fatty materials are deposited on the inside walls of arteries (they become hard and form plaques)

it clogs the arteries

arteries can become blocked 

fatty materials are desposited on the inside walls of arteries (they become hard and form plaques)

it clogs the arteries

arteries can become blocked 

heart attack

• One or more bloodvessels around the heart muscle (coronary arteries) is blocked
• Parts of the heart stop beating or start beating irregularly
• Blockage = called thrombosis

Stroke

• One or more bloodvessels to the brain are blocked.
• Parts of the brain get starved of oxygen and can be damaged permanently.

Risk factors

-inherited genes

-age

-sex (men have a higher chance)

-eating fatty foods

-being over weight

-smoking

-taking little or no exercise

Watch the video and answer the following questions  

1. How does alcohol absorbs into the blood?

2. Which organs gets a higher amount of alcohol molecule?

3. Which toxic product is created after the breakdown of alcohol molecule?

4. Why does alcohol has a different effect on man and women?

Addiction

Physically dependent: the body needs the drug

Mentally dependent: you constantly think about the drug

Socially dependent: you need it because of the contacts with the people who use the drug as well

 One promille of alcohol (1‰ or a BAC of 0.1%) means one milligram of alcohol per millilitre of blood.

BAC

• Blood alcohol content
• The level of alcohol content in the bloodstream
• Depends on body weight and how long the alcohol has been in the body
• 30 minutes to absorb alcohol in bloodstream and 60 minutes to break it down.

Binge drinking

• Drinking too much alcohol in a short period of time
• Sudden high concentrations of alcohol can severly damage the brain
• May increase the likehood of having a stroke 

in which artery is atherosclerosis especially dangerous?

1. renal arteries
2. hepatic artery
3. coronary arteries
4. gastric artery

drugsindehersenen.jellinek.nl

Homework

• Complete this LessonUp
• Read basic 3.6 in the book 
• Complete the Assignments 1-4 , 6-9 

Head

lungs

Intestines

liver

other organs

vein

vein

artery

vein

vein

artery

vein

artery

artery