Science Chapter 1.1 & 1.2 Form 3

Diagram 1 shows the cross section of a human eye.

Name the parts Z

• Iris

• Optic nerve

• Cornea

• Pupil

Diagram 2 shows the cross section of the human nose.

What is the function of X?

• Moistens the nasal cavity

  Melembapkan rongga nasal

• Interprets the impulses as a smell

  Menterjemahkan impuls sebagai satu bau

• Secretes mucus to dissolve the chemicals

  Mengeluarkan mukus untuk melarutkkan kimia

• Detects and sends the impulses to the brain

  Mengesan dan menghantar impuls kepada otak

Apakah fungsi rerambut pada lapisan di dalam lubang hidung?

What is the function of the hairs on the inside lining of the nose?

• Untuk merembeskan mukus yang membantu melembapkan udara

  To secrete mucus that help to moisten the air

• Untuk melindungi rongga nasal semasa menarik nafas

  To protect the nasal cavity during inhalation

• Untuk memerangkap partikel asing yang hadir dalam udara sedutan

  To trap foreign particles present in the inhaled air

• Untuk meningkatkan proses tarikan dan hembusan nafas

  To enhance the inhalation and exhalation process

Antara struktur telinga berikut, yang manakah mempunyai cecair?

Which of these ear structure has fluid?

• Jendela bujur

  Oval window

• Gegendang telinga

  Ear drum

• Tiub Eustachio

  Eustachio tube

• Koklea

  Cochlea

Penglihatan yang jelas hanya boleh didapati semasa imej terbentuk dengan tepat pada

Clear vision is only available when the image is formed exactly on

• Kornea

  Cornea

• Anak mata

  Eye ball

• Retina

  Retina

• Kanta mata

  Eye lens

What is the function of brain in human nervous system?

• Controls involuntary action

• As the centre of receiving and interpreting impulses

• Transmit impulses between the spinal cord and other body parts

• Produces responses

Central nervous system is made up of ..

• Brain

• Cranial nerves

• Spinal nerves

• Spinal cord

Peripheral nervous system is made up of,.....

• Brain

• Cranial nerves

• Spinal nerves

• Spinal cord

Conscious action is called....

• Involuntary action

• Voluntary action

• Reflex action

Pathway of an impulses below.

Stimuli ----> Affector ----->Brain----->Effector---->Response

• Reflex action

• Voluntary action

• Involuntary action