Reflexes

Question 1

What is the blinking reflex?

Answer 1

• a cranial reflex along the cranial nerves
• connected to the lower brain stem
• motor response to close the eyelids in response to bright light, touch or very loud sounds

Question 2

What is the knee-Jerk Reflex?

Answer 2

• a spinal reflex
• Tap stretches the patellar tendon
• This contracts the extensor muscle on the top of the thigh
• the frexor muscle on the bottom thigh relaxes on the motor neuron is inhibited
• the leg kicks

Question 3

Why are reflexes important for survival?

Answer 3

• Reflexes allow us to respond quickly to potential danger
• without having thinking
• allows our bodies to react automatically

Question 4

Where the knee-jerk reflex go to?

Answer 4

It goes through the spinal cord

Question 5

What pathway does the blinking reflex go to?

Answer 5

• it goes through the brain

Question 6

Are reflexes fast or slow?

Answer 6

• They are fast responses

Question 7

How many neurons reflex contain?

Answer 7

• one or two neurons

Question 8

Why do reflexes give survival advantages?

Answer 8

• They only contain one or two neurons which are the slowest parts of the nerve transmission.