Will Giles SAQ Flashcards
How many ATP molecules are formed in the Kreb’s cycle?
2
What are the substrates of ketogenesis?
Two molecules of acetyl-CoA
What happens to acetone that is produced in ketogenesis?
It is breathed out (because it is volatile)
Name two types of genetic testing in pregnancy
- Amniocentesis
2. Chorionic Villi Sampling
What are the 6 steps in the chain of infection?
- Causative micro-organism
- Reservoir
- Portal of exit
- Mode of transport
- Portal of entry
- Vulnerable host
Define heritability
The proportion of the aetiology (cause) that can be ascribed to genetic factors as
opposed to the environmental factors
Define haematocrit
A measure of the proportion of the blood that consists of red blood cells
What change does the Fe cation in the centre of the haem group in haemoglobin undergo when it changes from oxyhaemoglobin to deoxyhaemoglobin?
Changes from Fe2+ to Fe3+
What is, normally, the most prevalent leukocyte in the blood?
Neutrophils
Give some examples of tissue-resident macrophages
- Microglia
- Osteoclasts
- Kupffer cells
- Mesangial cells in the glomerulus
- Alveolar macrophages
During pericarditis, referred pain to the shoulder is quite common. Which nerve is responsible for this?
Phrenic nerve
Define compliance
How easily the heart chambers expand when filled with blood
Which protein extends from the Z-line of the sarcomere to the M-line and helps to maintain filament alignment?
Titin
Which paranasal sinus lies inferior to the pituitary gland and sella turcica?
Sphenoid sinus
Where do gastric contractions begin?
In the gastric body
How frequently does the large intestine contract?
Around once every 30 minutes
How long does ingested food stay in the large intestine before it’s excreted?
18-24 hours
Which artery, sympathetic nerve, and parasympathetic nerve supply to midgut?
Artery: Inferior mesenteric
Sympathetic: Lesser splanchnic
Parasympathetic: Vagus
Which enzyme is responsible for converting Haem into biliverdin?
Haemoxygenase