ANS & nervous reflexes

Question 1

Nervous reflexes are

Answer 1

Automatic

Question 2

Reflexes are automatic responses to a stimulus that

Answer 2

does not need conscious thought as it occurs through Reflex arc

Question 3

Nervous reflex consists of

Answer 3

Stimulus, Receptor, Sensory neurons, Integrating center, Efferent neurons, Effectors as muscles & response.

Question 4

Monosynaptic reflex have only :
eg :

Answer 4

Two neurons
eg: Stretch reflex

Question 5

Polysynaptic reflex have :
eg :

Answer 5

Three or more neurons
eg: Withdrawal reflex

Question 6

ANS is controlled by centers in :

Answer 6

Hypothalamus

Question 7

ANS controls :

Answer 7

Involuntary as Cardiac muscles, Smooth muscles, Glands

Question 8

Autonomic nerves are subdivided into :

Answer 8

Sympathetic & Parasympathetic systems

Question 9

The dominant during fight or flight :

Answer 9

Sympathetic

Question 10

The dominant during rest :

Answer 10

Parasympathetic

Question 11

Sympathetic nerves originate from

Answer 11

Thoracic & Lumbar regions of spinal cord

Question 12

Parasympathetic nerves originate from

Answer 12

Cranial nerves & Sacral region of spinal cord

Question 13

Somatic consists of

Answer 13

Single neuron

Question 14

Autonomic pathways consist of

Answer 14

Preganglionic neuron that synapses with Postganglionic neuron at Autonomic Ganglia

Question 15

All preganglionic neurons secretes :
binds with :

Answer 15

Acetyl Choline that binds with Cholinergic Nicotinic receptors.

Question 16

Postganglionic sympathetic neurons secrete :
binds with :

Answer 16

Noradrenaline that binds with Adrenergic receptors

Question 17

Postganglionic parasympathetic neurons secrete :
binds with :

Answer 17

Acetyl Choline that binds with Cholinergic Muscarine receptors

Question 18

Adrenal medulla is stimulated by

Answer 18

Preganglionic sympathetic nerves

Question 19

Adrenal medulla secretes :

Answer 19

Adrenaline & Noradrenaline into Blood