l16

Question 1

first synapse release what to what receptors

Answer 1

Acetylcholine to nicotinic receptors

Question 2

Nicotine is agonists or antagonists nicotinic receptors are what channel

Answer 2

agonist
- ligand gated channel
- direct

Question 3

cholinergic receptors

Answer 3

receive acetycholine
can b g coupled or ligand gated

Question 4

parasympathetic second synapse release what to what

Answer 4

acetycholyne to muscurania receptors

Question 5

muscarinic receptors

Answer 5

muscarine is agonist
- receptor is g coupled channels
- activate second messenger

Question 6

sympathetic second synapse release what to what

Answer 6

noradrenaline to adrenergic receptors

Question 7

adrenergic receptors

Answer 7

a class of g coupled
- receive norepinephrine (noradrenaline) and epinephrine (adrenaline).

Question 8

a1 adrenoreceptor excitatory

Answer 8

Smooth muscle:
vascular
genitunary (sphincter, urinary bladder)
heart
liver
eyes
CNS post synaptic neuron
saliva

Question 9

a1 adrenoreceptor inhibitory

Answer 9

smooth muscle intestinal

Question 10

a2 adreno receptor inhibitory

Answer 10

pre + post synaptic neuron, cns and

-> pancreas platelets

Question 11

b1 excitatory adreno

Answer 11

cns post synaptic
intestinal
heart
rena juxtaglomarular (regulate blood pressure - blood vessel)

Question 12

b2 excitatory adreno

Answer 12

cns post-synaptic, intestinal, bronchial, skeletal mus vascula bed + skeletal mus liver eyes (cililary muscle) mast cell, blood vessel, detrusor muscle (urinary)

Question 13

b3 excitatory adreno

Answer 13

adipose tissue

Question 14

sympathetic innervation: tissue influenced by a1 + effects:

Answer 14

eye iris (contract radial muscle)
saliva gland (release k+)
blood vessel (contraction constriction of vascular muscle in skin, mucosa, abdominal)
gastrointestinal (contraction - sphincter)
urinary bladder (contraction - sphincter)

Question 15

sympathetic innervation: tissue influenced by b1 + effects:

Answer 15

salivary (amylase secretion)
heart (increase contraction sa node, automaticity av node)

Question 16

sympathetic innervation: tissue influenced by b2 + effects:

Answer 16

eye ciliary muscle (relax far vision)
bronchi (relax/dilation smooth muscle)
blood vessel (dilation coronary vessel, vasculature in skeletal muscle bed)
gastrointestinal tract (relax sphincter)
urinary bladder (relax detrusor)
skeletal muscle (tremor, glycogenolysis)
mast cell (inhibition of histamine release)

Question 17

sympathomemtic

Answer 17

insomnia
restlestness
tremor
palpitation
tachyrcardia

Question 18

adrenergic agonist