SBA Paper 2 Flashcards
Where is ribosomal RNA synthesised in the cell?
Nucleolus
Where is desmin found?
Muscle cells
Which layer of the trilaminar disc is the notochord derived from?
Mesoderm
During which week of foetal development does the primitive streak usually appear?
Week 3
Is tubulin an intermediate filament?
No, it is a microtubule filament (larger)
What level is the angle of Louis (sternal angle)?
T4
Which structures can be found at the angle of louis?
- Bifurcation of the trachea
2. Loop of the left recurrent laryngeal nerve
Where does the right recurrent laryngeal nerve loop?
Right subclavian artery
Where does the left recurrent laryngeal nerve loop?
Arch of the aorta
In which layer of the heart can Purkinje fibres be found?
Endocardium
Which nerve innervates the cricothyroid muscle?
Superior laryngeal nerve
What are pores of Kohn?
Structures that allow transmission and equilibrium of air pressure between the alveoli
Define generator potential
Graded, non propagated potential changes seen in in sensory organs
What causes the oxygen-haemoglobin curve to shift to the right?
Decrease in pH / increase in temperature
How many layers of muscle does the stomach have?
3 (oblique, circular and longitudinal)
How many layers of muscle does the GI tract (excluding stomach) have?
2 (circular and longtitudinal)
Which molecule transports most of the copper around the body?
Ceruloplasmin
What molecule decreases satiety / increases hunger?
Ghrelin
Which molecules increase satiety / decrease hunger?
Secretin, CCK, Leptin, Insulin
Which chemical gives urine its yellow appearance?
Urobilin
Is stercobilinogen a constituent of bile?
No
Apart from H20 and bile salts, name two constituents of bile?
Bile salts and lethicin
Name four structures that the transpyloric plane crosses?
- Gallbladder
- Pylorus of stomach
- Pancreas
- Hila of left kidney
What are the five focal virtues?
Compassion, discernment, trustworthiness, integrity and conscientiousness
