VISION ACADEMY

1) There are -----------pairs of cranial nerves.

• 12
• 31

2) There are ________pairs of spinal nerves arise from the spinal cord.

• 12
• 31

3) _______ nervous system dilates the pupil of the eyes, constricts the vessels of the skin and accelerates the heart rate.

• Parasympathetic
• Sympathetic

4) _______ nervous system is responsible for the Constriction of the pupil of the eyes, dilation of blood vessels and slowing down of the heart rate.

• Parasympathetic
• Sympathetic

5) _____reflex is one in which no previous experience or learning is required.

• Natural reflex
• conditional reflex