Lesson 3: The human skeleton

• Biologie
• Middelbare school
• mavo
• Leerjaar 3

Get ready

-LessonUp

-Notes

-Homework

Discussion of Homework

• Sheets 'Type of skeletons'
  
• 5 minutes
  

The homework

Next monday, uploaded to classroom: 

-The human and avian skeleton worksheet, first 10 questions

-The worksheet types of skeletons (1 out of 3)

-Mindmap of the first 3 lessons

-Worksheet bones

Not finished = Detention!

lesson 3: The human skeleton

Bones 

What are bones made of?

• Collagen: Flexibility
  
• Calcium & Phosphorus: Hard
  

Bone = hard and solid

Cartilage = soft and rubbery 

How do bones grow?

• 300 bones (Baby) -> 206 bones (adult)
  
• Cartilage as baby becomes bone with help of calcium
  
• Bones fuse together
• Age 25 -> growing is finished

Injuries

Simple fracture:

A clean break from 1 side to the other side 

Greenstick fracture:

A break only from 1 side (not the whole bone is broken)

Compound fracture:

More than 1 break

Open fracture: 

Broken bones comes through the skin

Assignment: Bones

• Work in groups of 3
  
• Assemble the skeleton together 
  
• Discuss the names of the bones 
• Finished? --> check! 

Bones you need to know:

1. Skull
   
2. Upper jaw (Maxilla)
   
3. Lower jaw (Mandible)
   
4. Vertebrae
5. Clavicle (collarbone) 
   
6. Scapula (shoulderblade)
   
7. Sternum
   
8. Ribs
   
9. Humerus
10. Radius
11. Ulna

1. Hand bones
2. Pelvis
   
3. Sacrum
   
4. Coccyx
   
5. Femur
   
6. Patella (kneecap)
   
7. Tibia
   
8. Fibula
   
9. Foot bones

Homework 

-Update your mindmap with information of lesson 3

-Complete the worksheet 'The skeleton'

1. SKULL
2. MAXILLA
3. MANDIBLE

What is the 'soft bone' tissue called?

1. Cartilage
2. Calcium

1. SKULL
2. MAXILLA
3. MANDIBLE

1. STERNUM
2. RIBS
3. CLAVICLE
4. VERTEBRAE

1. HUMERUS
2. RADIUS
3. ULNA

1. PATELLA
2. FEMUR
3. FIBULA
4. TIBIA

1. VERTEBRAE
2. CLAVICLE
3. MANDIBLE
4. SKULL

1. MAXILLA
2. MANDIBLE
3. CLAVICLE
4. STERNUM

What type of skeleton do we have?

1. Exoskeleton
2. Endoskeleton
3. Liquid skeleton

What do bones mainly need to remain hard?

1. Calcium
2. Collagen
3. Water
4. Cartilage

What is the function of bone marrow?

1. Protection
2. Shape
3. Movement
4. Blood cell production

What are vertebrates?

1. Animals that live underwater
2. Animals that shed their skin once in a while
3. Animals that have a spinal column
4. Animals that have very long hair