U4 B1 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

B1 The skeleton

• Take off your jacket
  
• Put your things on your desk
  

       Book, notebook, pencil case

• Bag on the floor
  
• Read pages 8-10

Lessongoals

• You know the parts of the body
• You can recognize the bones in a picture of a skeleton
• You can name the 4 functions of the skeleton

Today

• Unit 4
• The skeleton
• Why do we need a skeleton?
• Time for hw
  
• End

Planning U4

• SO: 4.1: The skeleton (p. 8-15)
• 4.2: The structure of bones (p. 16-21)
• 4.3: Joints (p. 22-30)

Unit 4 is called: support and locomotion
What does locomotion mean?

Which bones in the human body do you know?

Pectoral girdle

Ribcage

Pelvic girdle

Torso = The limbs and head are connected to the torso

Limb = the arms and legs are limbs

Important parts

Head: skull, lower and upper jaw

Ribcage: thoracic + ribs + breastbone

Pectoral girdle: shoulder blades and collar bones

Pelvic girdle: pelvis + sacrum

some bones in your limbs have a similar structure:

arm: humerus, ulna, radius, and hand bones

leg: thighbone, thinbone, fibula, and bones of the foot

vertebra

thighbone

skull

breastbone

rib

pelvis

Why have a skeleton?

Functions

The skeleton performs 4 functions:

1. Rigidity and sturdiness
2. Makes movement possible
3. Protects organs
4. Give shape to the body

What you should do:

•  Read 4.1 and do exercises 1, 2, 4, 6
• Looking for a challenge: +
• B1: 5, 7
• Flashcards B1

Done with the above?

• Work on the next chapter(s)
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk
  Zs = Working in Silence
• No asking questions
• Silent, don't disturb anyone
• Stay at your desk

Tidy Duty

Today these people are on tidy duty

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish