Reflexes

Question 0

Reflex arc–5 parts

Answer 0

Sensory receptor 
Afferent neuron
Integration center 
Efferent neuron
Effector organ

Question 1

Reflex definition

Answer 1

An automatic, patterned response to a sensory stimulus

Question 2

Reflexes categorized into 4 groups

Answer 2

Spinal or cranial–spine or brain
Somatic or autonomic–skeletal muscle or smooth muscle, cardiac or glands
Innate (inborn) or continued (learned)–born with it or develop
Monosynaptic or polysynaptic–2 neurons and 1 synapse or more than 2 neurons and multiple synapses

Question 3

Withdrawal reflex

Answer 3

Body is subjected to painful stimuli and withdraws automatically

Question 4

Crossed-extensor reflex

Answer 4

Painful stimulus triggers withdrawal reflex, the crossed-extensor reflex is also triggered.
(Stepped on a nail) this reflex controls opposite leg to maintain balance and withdrawal reflex removes from the foot from the nail

Question 5

Inhibitory interneurons

Answer 5

Suppress activity in neurons that control withdrawal reflex

Question 6

Stretch reflex

Answer 6

Knee jerk