Y2_T3_LSN_3.1

• Science
• Middelbare school
• havo, vwo
• Leerjaar 2

Get ready

- TB p. 100

- notebook

- this lessonup

Topic 3

ORGANIZING THE WORLD

§3.1 Organ systems

p. 98-107

§3.1  - Learning goals

I can....

• describe how organs work together in organ systems
• list the organs belonging to the different organ systems
• describe the general function of each organ in the different organ systems

p. 98-107

§3.1  - Key words

• Organ systems
• Digestive system
• Enzymes
• Skeletal system
• Respiratory system
• Muscular system
• Nervous system
• Reproductive system
• Circulatory system

p. 98-107

Levels of organisation

Digestive System

Breaks food down so it is small enough to be absorbed into your blood. 

Your body does this with the help of enzymes.

Organs: stomach, liver, large intestine & small intestine

p. 98-107

rectum

liver

mouth

stomach

oesophagus

large intestine

small intestine

Skeletal System

Provides:

- support

- movement

- protection

- blood cell production 

Organs: skull, pelvis, ribs, vertebrae

p. 98-107

Skull

Pelvis

Scapula

Humerus

Vertebral Column

Knee cap

Tibia

Femur

Ulna

Radius

Ribs

Respiratory System

Provides:

- ventilation

- gas exchange

- respiration

Organs: lungs, nose, mouth, windpipe

p. 98-107

Nose

pharynx

larynx

trachea

bronchus

bronchiole

alveolus

lung

diaphragm

mouth

Muscular System

Provides:

- support 

- movement

muscles can only contract or relax, they work in antagonistic pairs

Organs: biceps, triceps, hamstrings

p. 98-107

Reproductive System

Provides:

- Reproductive hormones

- Reproductive cells

These are different for both male and females. 

Organs: ovaries, uterus, testicles & penis

p. 98-107

Nervous System

Provides fast communication in your body by electrical signals. 

Organs: brain, spinal cord, nerves (neurones) and senses. 

p. 98-107

Circulatory System

Provides your body with the transport of oxygen and nutrients around the body. 

Organs: heart, veins, arteries and capillaries 

p. 98-107

Aorta

pulmonary artery

pulmonary vein

vena cava

right atrium

right ventricle

left atrium

left ventricle

tricuspid valve

aortic  valve

mitral valve

pulmonary valve

septum

apex

HW for next time:

• Read & highlight §3.2 (p. 110-113)
• Study the glossary of 3.1
• Complete the exercises of 3.1 (p. 104-109)

p. 98-107