2019 MCQ

Which is a ligand only neurotransmitter

Glycine

Which causes vasodilation by nitric oxide

Oestrogen

What transports cholesterol from peripheral tissues to liver

HDL

What transports cholesterol to intestines

Chylomicrons

Most abundant leucocyte

– neutrophils

Pt has HIV antibodies and shortness of breath for 5 weeks

- Pneumocystis Jirovecii

Macrophages formed from

- monocytes in blood

Corpus callosum

– contralateral cerebral hemispheres

What is hypothalamus not involved in

(we don’t know the options so here are things it IS involved with)

* Temperature Regulation
* Control of Hunger and Satiety
* Thirst and Fluid Balance
* Sleep and Circadian Rhythms
* Control of Hormone Release
* Autonomic Nervous System Regulation
* Emotional and Behavioral Responses
* Sexual Behavior and Reproduction
* Stress Responses
* Autonomic Responses to Stress

Where are atheromas most likely to form

High unidirectional flow, at branches etc

Fibrous pericardium

– middle mediastinum

Aortic arch (which vessel wraps around it)

– recurrent laryngeal nerve

Most unlikely factor to cause thrombi

– renal necrosis

Erythropoeisis is inhibited by renal failure

– FALSE. IT IS INHIBITED BY

* Iron Deficiency
* Vitamin B12 Deficiency
* Folate Deficiency
* Chronic Diseases
* Bone Marrow Disorders
* Chronic Infections
* Medications and Treatments

Oesophagus passes diaphragm through

- T10

Adaptive immunity

– can respond to inflammation quicker

Patent foramen ovale

- blood can pass through both left and right chambers (atria) of heart, blood can bypass pulmonary circuit and cause clot

Rate of blood flow is

- proportional to force driving through vessel

Which is a good measure of cardiovascular disease

Sedentary lifestyle

Which of these is elevated in asthma

Eosinophils

Type 1 hypersensitivity

– IgE

P-R intervals shows

- interval between onset of atrial depolarisation and onset of ventricular depolarisation

Pulmonary oedema

- increase in diffusion distance, decrease in lung volume

Vital capacity

– maximum volume exhaled after maximum inspiration

Which of these causes an increase in affinity of haemoglobin

Low temperature

What is a normal value for PO2

98 mmHg

Carbon dioxide is carried as

- bicarbonate ions

Pulmonary valve

– 2nd left sternal margin

COPD reduces

- total lung capacity

Critical pH of plaque

– 6.5

Random picture of pear shaped diamond bur, which one

19, tf-13,227

What type of filler particles are in composite

Glass

Pt can’t tolerate intra-oral radiographs and has caries –

right and left lateral oblique

What % of Cu is found in high Cu amalgam

13%

What does NOT affect pocket probing depth

Furcation

Which of these is least likely to give nutritional advice

Classroom assistant

What is found on LA cartridge

None of the above

How long for contamination with saliva

1 second

8 year old active caries

- 0.05% daily fluoride rinse

50 year old active caries

– 5,000 ppm toothpaste

6 year old least likely advice

– rinse after brushing

Which of these is true of composite

Cured with UV light

Which is true for GIC

None of the above

What would you advise for a healthy pt

1,350 – 1,500 ppm toothpaste

Cavo surface angle

– angle between cavity wall and external tooth surface

Matrix band should be

narrower cervically/ at gingival margin

Alginate space

- 3mm

what is Hybrid resin

– different particle filler sizes

How many roots and canals found in upper maxillary first molar

3 roots and 4 canals

How many roots found in upper maxillary second molar

three roots

How many roots found in mandibular first molar

2 roots

Where is the LA cartridge placed as you’re giving ID block

Over contralateral mandibular second premolar \### (not sure on this either, swear this is just SAP)

What does AED stand for

Automated External Defibrillator

What are the categories of abrasion

Cervical, habitual, iatrogenic and industrial

What does NCTTL stand for

Non carious tooth tissue loss

Anti-caries benefit of fluoride

- is topical and risk of fluorosis is systemic

Class V cavity

– cervical region of tooth

Gracey curette 7 – buccal/lingual surface of posteriors

Finishing restoration

– smooth, shape and mould to provide correct anatomical form and remove any sharp areas

Polishing restoration

- to impart shine/lustre

Sealers seal dentinal tubules

Lower left tooth radiograph has broken instrument in it

BPE probe

– first black band 3.5-5.5mm

Anterior facial plane parallel to

- pupillary line