SCIENCE FORM 3 CHAPTER 1

J- Spinal cord K-Spinal nerves

L-Brain M-Cranial nerves

Which of the following is Peripheral nervous system

• J/K

• L/J

• J/M

• K/M

Examle of involuntary action involving medula oblongata

• Breathing

• Sneezing

• Digestion of food

• Heartbeat

Which part of ear balances the air pressure on both sides of the eardrum

• Ossicles

• Semicular canals

• Pinna

• Eustachian tube

Ossicles sends vibration to cochlea through

• Oval window

• Semicular canals

• Auditory nerves

• eardrums

Name 5 types of basic taste

How many taste buds contain in a taste receptors

• 20 to 50

• 10 to 30

• 10 to 50

• 5 to 80

Which part does pain receptor located in

• Epidermis

• Fat layers

• Dermis

Images form onto retina appear

• Smaller and inverted

• Smaller and upright

• Bigger and inverted

• Upright

Images of short-sightness form

• Behind retina

• In front of retina

• In retina

Human ranges of hearing between

• 20-200 000

• 30-5000

• 10-4000

• 20-20 000