SAQ 2015

Question 1

3 types of cell junction

Answer 1

Anchoring, communicating and tight

Question 2

Malabsorption

• brusing
• pale and smelly
• swollen ankle

Answer 2

• Bruising easily (slow blood clotting) = low levels of vitamin K absorption (Makes all clotting factors in liver, except VWF (8) and Calcium (4))
• Pale and smelly = low fat absorption
• Swollen ankles = lack of protein, low oncotic pressure

Question 3

What is the name of the part of an ECG trace that corresponds to ventricular depolarisation?

Answer 3

QRS

Question 4

You look at the ECG for a patient and you see there is an absent P wave with a regularly shaped trace for ventricular depolarization. What pathology is shown by this pattern?

Answer 4

Atrial fibrillation???

Question 5

Said they are looking at grams of tobacco smoked per day, number of cigarretes and whether or not someone had ever smoked a cigarette. Asked us to categorise the data into which would be considered binary, continuous, discreet, counting or something else.

Answer 5

Grams = continuous Number of ciggs = counting/discete? ever smoking = binary

Question 6

p value

what value is statistically significant?

Answer 6

Probably that a positive result occurs when the null hypothesis is true
-below 0.05

Question 7

Which neurotransmitter is produced in the substantia nigra?

Answer 7

Dopamine

Question 8

What pigmented hormone is present in the skin and what type of cell is it produced by?

Answer 8

Melanin produced by melanocytes (transferred to keratinocytes in the epidermis)

Question 9

Name 2 motor related conditions and 1 psychiatric condition associated with the basal ganglia

Answer 9

Huntington’s disease, Parkinson’s disease, ADHD, OCD

Question 10

Which cells are responsible for myelination in the PNS and in the CNS?

Answer 10

Schwann cells, Oligodendrocytes