The Reflex Arc

Question 1

A reflex is a fast, predictable sequence of involuntary actions, occurring in response to ___________.

Answer 1

STIMULI

Question 2

Reflex ________ are anatomic pathways that carry reflex responses.

Answer 2

ARCS

Question 3

Name the 5 basic components of a reflex arc?

Answer 3

1. RECEPTOR: STIMULI to APs
2. AN AFFERENT NEURON THAT CARRIES APs to
3. INTERNEURONS
4. EFFERENT NEURONS THAT CARRY APs to
5. EFFECTORS (MM or GLANDS)

Question 4

What forms the basis of all CNS motor activity, occurring at all levels of the CNS?

Answer 4

REFLEXES

Question 5

Name some important bodily functions controlled through reflexes?

Answer 5

RESPIRATION
DIGESTION
POSTURE
DEFENSIVE MOVEMENT
SEXUAL FUNCTION
WALKING

Question 6

Can reflex acts occur without our knowledge?

Answer 6

YES