Finish Unit 5

• Biologie
• Middelbare school
• havo
• Leerjaar 1

Today

- Small test of Unit 5 

- make summaries of each Basic 

- Check answers in your book 

- Make only test in BvJ or quiz eachother about Unit 5

Test Unit 5 Sensing and Perceiving the environment 

Basics: 1, 2, 3, 4 and 7.

- The bit about near/far-sightedness (eyes) will not be tested.

 

Checklist online in SOM + answer sheet Unit 5

LessonUp's kan je terugkijken als je inlogt in je eigen account.

Let erop dat je terugkijkt of je al je opdrachten hebt nagekeken en begrijpt. 

Op toets: bijlage van Oog en Huid, dus belangrijkste is om functies te kennen

What's a stimulus?

1. An organ that reacts to the environment
2. Elektrical signals to the brain
3. Something in the environment (e.g. heat)
4. A cell that catches impulses

What do your sensory cells do?

What are things you
can feel with your skin?

Mix and match

Dermis

Sweat glands

Corneal layer

Sebaceous gland

Basal layer

Is made of dead cells

Exists out of living (fast dividing) cells

Makes an oily substance

Here are the cold, heat, pressure, touch and pain receptors. 

Makes moisture to cool down

The skin

How do you perceive when someone smiles to you? And how do you react?
Give 6 steps using key words

What part of the eye has sensory cells?

1. Blind spot
2. Fovea
3. Orange spot
4. Small spot

How do you perceive when someone smiles to you? And how do you react?
Give 6 steps using key words

What happens with stimuli?

Stimuli are sensed by sensory cells
They produce impulses

The impulses  ('elektrical signals')
go towards and from the brain

Nervous system in action

1. Senses receive stimuli
2. Sensory cells produce impulses 
3. Impulses travel by nerves to the spinal cord
4. Trough spinal cord towards the brain
5. The brain processes these impulses to perceive 
   the environment, (conscience = bewustzijn)
6. Impulses are sent down to the muscles and glands. 
7. Muscles and glands react  (effect) 
   
   "move arm towards chocolate and produce saliva"

To see light must pass several parts of the eye. What is the correct order?

1. cornea, pupil, lens, retina
2. lens, retina, pupil, cornea, pupil,
3. pupil, lens, retina, cornea,
4. cornea, lens, cornea, pupil, retina

Pupil

Pupilreflex

When will the pupil become larger?

Conscious reaction (bewust)

Reflex (en reflexboog)

Reflexboog

Reflex arc - (withdrawal reaction)

What type of neuron is in the brain (central nervous system)?

1. Motor neuron
2. Interneuron
3. Sensory neuron and motor neuron
4. Alle three types.

auricle (=oorschelp)

outer ear canal

eardrum

eustachian tube

cochlea

hammer

stirrup

anvil

auditory nerve

How well do you understand Unit 5
'perceiving your environment (senses)'?

010

Even oefenen in stilte

Basics: 1, 2, 3, 4 and 7.

Op toets hulp: bijlage van Oog en Huid, dus alleen functies onderdelen leren.

- bit about near/far-sightedness (eyes) will not be tested.

 

Checklist online in SOM + answer sheet Unit 5

LessonUp's kan je terugkijken als je inlogt in je eigen account.

Let erop dat je terugkijkt of je de opdrachten hebt nagekeken en begrijpt.
 Oefen ook via SOM > Biology for You Max. online > Unit 5 - To Finish