2.5 The components of blood -1

• Biology
• Middelbare school
• vwo
• Leerjaar 3

Ch. 2 The circulatory system

Materials 

- iPad

- Pen, pencil

- note book

For a mark

- No

Lessonup

- Yes

Bags

in bag closet

Phones 

in your bag /

in bag closet 

today''s program 

Homework revision: 

- homework revision : summary & practical heart rate in Google Classroom

- exercises ? questions ? 

2.5 The components of blood 

Homework

Learning objectives: 'what I am going to learn?'

I can .... 

• explain what blood pressure is 
• where in the body blood pressure is the highest and where the lowest 
• describe 3 situation that may influence blood pressure 
• name, describe and explain the common diseases of the circulatory system and what causes them

New key terms:

blood pressure - taking ones pulse - systole - diastole 

hypertension - stroke - atherosclerosis - angioplasty - stent - plaque

Previous lessons

blood pressure= The pressure put on the walls of your arteries by the blood.

Blood pressure is the highest in the arteries and the lowest in the veins

Blood pressure is influenced by

 - thicker blood

- high salt intake ( promotes water retention and creates extra fluid in the blood)

- stress:  hormones (like epinephrin) stimulates the muscles around the arteries to constrict so the arteries become narrow 

Google Classroom & Brick's exercises

• answers to the learning objectives 
• summary 
• exercises

Learning objectives: 'what I am going to learn?'

I can .... 

• describe the differences between the various components of blood
• explain the functions of plasma and of the red blood cells 

New key terms:

 red blood cell - plasma

Assigment 1

• copy fig. 2.20 in your notebook 
• write behind the names the characteristics of RBC's and plasma while watching the video in the next two slides

herewith an example how to do it 

assignment 1 (continuation) 

• read button A, C, F, G and E in Brick's and add eventually new info to the scheme

assignment 2

• learn the scheme by heart 
• do exercise 1, 5, 6 and 7 in Bricks 

homework 

1. do this LessonUp lesson 2.5 - 1 (exercises in Brick's included!)
2. upload your scheme of assigment 1 in the Google Classroom