Formative Paper Flashcards
All of the following Starling forces encourage the movement of substances from an idealised
capillary into the interstitium, EXCEPT the:
A. Interstitial fluid osmotic pressure
B. Capillary plasma protein oncotic (colloid) pressure
C. Capillary hydrostatic pressure
D. Positive net filtration pressure
B. Capillary plasma protein oncotic (colloid) pressure
A defining feature of AV block is that:
A. QRS complexes are independent of the P wave
B. There is a long QT interval
C. ST segments are elevated
D. Ventricular tachycardia is present
A. QRS complexes are independent of the P wave
The osmolality of the tubular fluid leaving the thick ascending limb is:
A. Hypertonic with respect to plasma
B. Isosmotic with respect to plasma
C. Hypotonic with respect to plasma
D. Isotonic with respect to plasma
C. Hypotonic with respect to plasma
Identify which ONE of the following statements about the bony thoracic cage is CORRECT:
A. The manubrium forms part of the body of the sternum
B. Ribs 9-10 are also known as floating ribs
C. The manubriosternal joint is also known as the jugular notch
D. The xiphoid process is normally at the level of T10
D. The xiphoid process is normally at the level of T10
Breath-hold duration increases by breath-holding after:
A. Rebreathing expired air
B. Increasing the initial lung volume
C. Hypoventilation on room air
D. Breathing hypoxic gas mixtures
B. Increasing the initial lung volume
True congestive heart failure is characterised by:
A. Decreased activation of the renin-angiotensin-aldosterone system
B. A decrease in pulmonary venule pressure
C. Pulmonary oedema
D. Right ventricular failure
C. Pulmonary oedema
The plateau phase of the cardiac action potential is sustained by the:
A. Closing of voltage-gated potassium channels
B. Opening of voltage-gated sodium channels
C. Opening of voltage-gated calcium channels
D. Closing of voltage-gated sodium channels
C. Opening of voltage-gated calcium channels
The area of the pons which is responsible for shortening the duration of inspiration to induce
a rapid breathing rate is the:
A. Pneumotaxic area
B. Expiratory area
C. Inspiratory area
D. Apneustic area
A. Pneumotaxic area
Which of the following statements is CORRECT:
A. The pharyngeal tonsils can be found in the oropharynx
B. The middle meatus is superior to the middle concha
C. Both A and B
D. Neither A nor B
D. Neither A nor B
Osmotic pressure represents the pressure required to:
A. Prevent net movement of water across a permeable membrane
B. Prevent net movement of water across a semi-permeable membrane
C. Promote net movement of water across a semi-permeable membrane
D. Promote net movement of water across a permeable membrane
B. Prevent net movement of water across a semi-permeable membrane
Please select the way in which the majority of carbon dioxide is carried in the blood:
A. Bound to haemoglobin
B. Dissolved in plasma
C. Bound to albumin
D. As bicarbonate
D. As bicarbonate
Which of the following statements about blood is CORRECT:
A. Thrombocytes are derived from reticulocytes
B. Monocytes are agranular and are derived from lymphoid stem cells
C. Basophils are granular and are derived from myeloid stem cells
D. The neutrophils are the most numerous of the formed elements
C. Basophils are granular and are derived from myeloid stem cells
Which ONE of the following statements regarding the control of respiration is CORRECT:
A. Aortic body chemoreceptors connect to the central nervous system via afferent vagus
nerve fibres
B. Carotid body chemoreceptors connect to the central nervous system via afferent
hypoglossal nerve fibres
C. Aortic body chemoreceptors connect to the central nervous system via afferent
hypoglossal nerve fibres
D. Carotid body chemoreceptors connect to the central nervous system via afferent vagus
nerve fibres
A. Aortic body chemoreceptors connect to the central nervous system via afferent vagus
nerve fibres
In distal tubule principal cells, ADH:
A. Decreases the water permeability of the cells
B. Exerts its effects via the production of cyclic AMP
C. Acts mainly at V2 receptors on the apical membrane
D. Prevents the activation of aquaporin-2 channels in the basal membrane
B. Exerts its effects via the production of cyclic AMP
A patient with chronic renal failure is a suitable candidate for dialysis and the consultant
recommends night-time home dialysis via an indwelling abdominal catheter hooked up to a
bedside dialysis machine. Which type of dialysis was recommended?
A. Haemodialysis with a Haemolyzer
B. Continuous Cycling Haemodialysis
C. Continuous Ambulatory Peritoneal Dialysis
D. Automated Peritoneal Dialysis
D. Automated Peritoneal Dialysis
Blood flowing through the kidney takes the following arterial route:
A. Renal, segmental, interlobular, arcuate, interlobar
B. Renal, segmental, interlobular, interlobar, arcuate
C. Renal, segmental, arcuate, interlobar, interlobular
D. Renal, segmental, interlobar, arcuate, interlobular
D. Renal, segmental, interlobar, arcuate, interlobular
Which of the following offers the best location for auscultation of the bicuspid valve?
A. Right 2nd rib, just lateral to sternum
B. Left 2nd intercostal space, just lateral to sternum
C. Left 3rd, 4th intercostal space, just lateral to sternum
D. Left 5th intercostal space, midclavicular
D. Left 5th intercostal space, midclavicular
Identify the correct order in which a carbon dioxide molecule taking part in gas exchange
would traverse the components of the respiratory membrane:
A. Fluid layer, epithelial cell, basement membrane, interstitial space, basement membrane,
endothelial cell
B. Endothelial cell, basement membrane, interstitial space, basement membrane, epithelial cell, fluid layer
C. Fluid layer, basement membrane, epithelial cell, interstitial space, endothelial cell,
basement membrane
D. Basement membrane, endothelial cell, interstitial space, epithelial cell, basement
membrane, fluid layer
B. Endothelial cell, basement membrane, interstitial space, basement membrane, epithelial cell, fluid layer
The left lung consists of:
A. Two lobes separated by an oblique fissure
B. Two lobes separated by a horizontal fissure
C. Three lobes separated by oblique fissures
D. Three lobes separated by horizontal and oblique fissures
A. Two lobes separated by an oblique fissure
Which of the following options lists correctly the order of components of the conducting
airways, where:
RB = Respiratory Bronchiole AD = Alveolar Duct B = Bronchi T = Trachea AS = Alveolar Sacs BO = Bronchiole TB = Terminal Bronchiole
A. RB, TB, AD, AS
B. T, B, BO, RB
C. TB, AD, RB, AS
D. T, B, BO, TB
D. T, B, BO, TB
All of the following statements regarding established Eisenmenger syndrome (caused by a
ventricular septal defect) are correct, EXCEPT:
A. Affected patients commonly become polycythaemic
B. Surgical repair of the septal defect is the best treatment option
C. Finger clubbing and cyanosis is often seen in affected patients
D. It is characterised by a right-to-left ventricular shunt and pulmonary hypertension
B. Surgical repair of the septal defect is the best treatment option
In the proximal tubule, Na/K-ATPase:
A. Acts as a symporter
B. Drives secondary active transport
C. Maintains a high intracellular sodium concentration
D. Is mainly located on the apical membrane
B. Drives secondary active transport
Local vasoconstriction can be caused by:
A. Lactic acid
B. Histamine
C. Nitric oxide
D. Endothelin
D. Endothelin
Which of the following statements regarding Stroke Volume (SV) is CORRECT:
A. It is 70mL/beat for a young male with a heart rate of 70bpm and a cardiac output of
7L/min
B. It will decrease if the End Diastolic Volume (EDV) increases
C. It is a measure of the amount of blood in the ventricles prior to systole
D. It will decrease if the afterload increases while the preload remains constant
D. It will decrease if the afterload increases while the preload remains constant
If the resistance in the afferent arteriole remains unchanged, but the resistance in the efferent
arteriole decreases, then:
A. Renal blood flow increases and GFR increases
B. Renal blood flow increases and GFR decreases
C. Renal blood flow decreases and GFR increases
D. Renal blood flow decreases and GFR decreases
B. Renal blood flow increases and GFR decreases
On a typical ECG, the P wave represents the:
A. Repolarisation of the ventricles
B. Repolarisation of the atria
C. Depolarisation of the atria
D. Depolarisation of the ventricles
C. Depolarisation of the atria
From deep to superficial, which ONE of these options correctly lists the layers of the heart:
A. Endocardium, myocardium, epicardium, pericardial cavity, parietal serous pericardium,
fibrous pericardium
B. Fibrous pericardium, epicardium, pericardial cavity, parietal serous pericardium,
myocardium, endocardium
C. Fibrous pericardium, parietal serous pericardium, pericardial cavity, epicardium,
myocardium, endocardium
D. Endocardium, myocardium, parietal serous pericardium, pericardial cavity, epicardium,
fibrous pericardium
A. Endocardium, myocardium, epicardium, pericardial cavity, parietal serous pericardium,
fibrous pericardium
The internal intercostal muscles:
A. Decrease the size of the thoracic cavity when they contract
B. Are deep to the neurovascular plane
C. Are innervated by the phrenic nerve
D. Are used in forced inspiration
A. Decrease the size of the thoracic cavity when they contract
In restrictive lung disease, it is usual for:
A. The FEV1/FVC ratio to remain unchanged
B. The FEV1/FVC ratio to increase
C. FVC to increase
D. FEV1 to increase
A. The FEV1/FVC ratio to remain unchanged
Which of the following is usually derived from the right coronary artery:
A. The circumflex branch
B. The anterior interventricular branch
C. The posterior interventricular branch
D. The coronary sinus
C. The posterior interventricular branch