Practice questions 2 Flashcards Preview

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Flashcards in Practice questions 2 Deck (41):
1

what nerve is at risk during thyroidectomy when the inferior thyroid artery is ligated

recurrent laryngeal

2

which branch of the subclavian artery helps to supply the brain

vertebral

3

which muscle divides the subclavian artery into three parts

scalenus anterior

4

what are paranasal air sinuses

spaces lined with respiratory epithelium which communicate with the nasal cavity

5

which paranasal sinus is inferior to the orbit

maxillary

6

which nerve supplies the posterior third of the tongue with taste sensation

glossopharyngeal

7

what nerve provides secretomotor innervation to the submandibular gland

facial

8

which cartilage completely surrounds the respiratory tract

cricoid

9

what muscle does the glossopharyngeal nerve supply?

stylopharyngeus

10

what is a side effect of tricyclic antidepressants

adverse effects on the heart

contraindicated with MAO inhibitors

dry mouth and blurred vision

postural hypotension

convulsions

11

bromocryptine

dopamine receptor antagonist

12

what can result from blockade of dopamine receptors

infertility

parkinsonianism

can treat psychotic disorders

13

what drug can block dopamine receptors

haloperidol (antipsychotic)

14

what happens when L-dopa is used to treat parkinsons

it is taken up by dopaminergic neurones

it can cause psychosis

15

what drug can be combined with L-dopa to reduce peripheral effects

carbidopa

16

what are some effects of chlorpromazine (neuroleptic antipsychotic)

causes urinary retention, gynaecomastia, weight gain, dry mouth

17

what is busipirone

anxiolytic

18

what is 5-HT (Hydroxytryptamine)

central neurotransmitter

can cause increased GI motility

reuptake is inhibited by clomipramine

19

what is clomipramine

Tricyclic antidepressant

20

what is reserpine

antipsychotic and antihypertensive

21

what are some features of excitotoxicity

excesive build up of neurotransmitter (glutamate) around the neuron

generation of free radicals

calcium overload

activation of intra cellular proteases and lipases

22

what are some side effects of narcotic analgesia

nausea
dependence
sedation
resp, depression

23

what prostaglandin opposes platelet aggregation

prostacyclin

24

mannitol

a sugar used to treat raised intracranial pressure

25

what are the features of drug metabolism

it may produce a compound with more or less pharmacological activity

it may produce metabolites with a higher water solubility

26

which muscle displaces the eye downwards and inwards

inferior rectus muscle (occulomotor nerve)

27

what muscles does the occulomotor nerve supply

superior rectus
levator palpebrae superioris
medial rectus
inferior oblique

28

what are the two occulomotor nuclei

occulomotor nucleus
Edinger-westphal (psymp)

29

where is the occulomotor nucleus

superior colliculus

30

what is the function of the edinger westphal nucleus

pupil constriction (sphincter pupillae)
cilliary muscle (accommodation)

31

what muscle does the trochlear nerve supply

superior oblique

32

what is the function of superior oblique (trochlear nerve)

abducts, depresses and internally rotates the eye

33

how many extraoccular muscles control the eye

6

34

what is the function of the lateral rectus muscle (abducens nerve(

points the eye down and laterally

35

where does the olfactory and optic nerves emerge from

cerebrum/forebrain

36

what nuclei are found in the midbrain

3 and 4

37

what nuclei are found in the pons

5,6,7,8

38

what nuclei are found in the medulla

9,10,11, 12

39

what is a ganglion

a nuclei found in the PNS (in terms of cranial nerves they may be sensory or psymp)

40

which cranial nerves have a sensory function

5,7,8,9,10

41

which cranial nerves also have an autonomic function

3, 7, 9, 10