Unti 2

Question 1

How is the nervous system divided?

Answer 1

Into central and peripheral

Question 2

How is CNS divided?

Answer 2

Brain and spinal cord

Question 3

How is PNS divided?

Answer 3

ANS and somatic

Question 4

How is ANS divided?

Answer 4

Parasympathetic (cholinergic)

Sympathetic (adrenergic)

Question 5

How is SNS divided?

Answer 5

Alpha and beta which are divided into 1 and 2 for each

Question 6

What are adrenergic receptors?

Answer 6

Receptors sites for catecholamines norepinephrine and epinephrine. Where adrenergic drugs bind and produce effects

Question 7

How are adrenergic receptors divided? And their subtypes

Answer 7

Alpha and beta, 1and 2

Question 8

How are alpha 1 and 2 differentiated?

Answer 8

Where they’re located. 1-postsynaptic effector cells

2-presynaptic nerve terminals

Question 9

How are beta 1 and 2 differentiated?

Answer 9

All located on post synaptic effector cells. 1- located in heart B2-smooth muscle fibres of bronchioles, arteriosclerosis and visceral organs

Question 10

What’ are adrenergic drugs?

Answer 10

Drugs with effects that are similar to effects of SNS Neurotransmitters NE epinephrine and dopamine

Question 11

What are adrenergic blockers also called and do?

Answer 11

They block the stimulation by the SNS. Also called sympatholytics and antagonists