Reflex Arcs

Question 1

What are four characteristics of reflexes?

S_______, i__________, r____, s____________

Answer 1

Stimulus, involuntary, rasped, stereotypical

Question 2

S_______ causes n_________ ton detect pain, generates nerve impulse

Answer 2

Stimulus

Nociceptor

Question 3

The s______ n_____ carries nerve impulse into the d_____ r___ g_______ and through the d_____ r___ into the s_____ c___

Answer 3

Sensory neuron
Dorsal root ganglion
Dorsal root
Spinal cord

Question 4

In the spinal cord, the nerve impulse is passed onto the i__________ or directly onto a m____ n_____

Answer 4

Interneuron

Motor neuron

Question 5

If via the interneuron pathway, the i__________ directs the impulse into a m____ n_____, then carries impulse to an e_______ via the v______ r___

Answer 5

Interneuron
Motor neuron
Effector
Ventral root

Question 6

An e_______ responds to remove stimulus

Answer 6

Effector

Question 7

Messages are sent to the brain via u____ s______ n_____, therefore we become conscious or a____

Answer 7

Upper sensory neurons

Aware