6. Which of the following are released from the adrenal medulla?
Adrenal Androgens
Glucocorticoids
Catecholamines
Mineralocorticoids
7. A substance, identified as 'X', is freely filterable and is excreted at a rate (in moles per minute) that is lower than the filtered load. On the basis of this information alone, which of the following is the most precise conclusion that can be dra
X is definitely reabsorbed and maybe secreted
X is definitely secreted and maybe reabsorbed
X is neither reabsorbed nor secreted
X is definitely reabsorbed and secreted
8. With respect to the Parasympathetic Nervous System, which of the following is FALSE?
Has ganglia near to the spinal cord
May terminate in axons that release Acetyl Choline
Is termed the 'rest and digest' system
Is the 'cranial-sacral' division of the autonomic nervous system
9. Which one of the following substances is normally found in urine?
creatinine
blood proteins
haemoglobin
white blood cells
10. Which is true of Cranial nerves?
cranial nerves may be mixed (sensory and motor fibres
all of the above
cranial nerves may be motor only
cranial nerves may be sensory only
11. Excessive secretion of growth hormone by the pituitary gland in adults only, results in;
gigantism
acromegaly
cretinism
Graves disease
12. Which is true of calcium at the presynaptic cell?
calcium enters the cell before the neurotransmitter vesicles are released
calcium enters the presynaptic cell after the neurotransmitter vesicles are released
calcium does not enter the presynaptic terminals
calcium enters the presynaptic cell prior to the action potential reaching the terminals
13. Which statement about action potentials is INCORRECT?
they can be summed
they are all or nothing
they have a refractory period
they are conducted without decrement
14. Cell bodies in the dorsal root ganglia are cell bodies of ...
Interneurones
Sensory AND motor neurones
Sensory neurones
Motor neurones
15. Which of the following has NO effect on growth?
testosterone
thyroid hormone
ADH
cortisol
16. Which of the following are released from the posterior pituitary?
oxytocin
thyrotropin releasing hormone
cortisol
adrenaline
17. Which one of the following is NOT one of the functions of the kidney?
produce hormones that assist in digestion
produce glucose in times of starvation
regulate blood volume
convert vitamin D from its inactive form to its active form
18. Which of the following hormones leads to a DECREASE in blood glucose?
Growth Hormone
Glucagon
Insulin
Cortisol
19. A hormone that is bound to a plasma protein;
is inactive in its bound state
is rapidly removed from the blood by the kidneys
has a relatively short life
rapidly stimulates its target cells
20. Concerning the kidneys and their function;
the colloid osmotic pressure of blood in the glomerulus favours the formation of glomerular filtrate
the wall of the thick segment of the ascending loop of Henle is impermeable to water the colloid osmotic pressure of blood in the glomerulus favours the formation of glomerular filtrate
the hydrostatic pressure of the ultrafiltrate in the Bowman's capsule favours the formation of glomerular filtrate
in water diuresis, the permeability of the collecting duct is increased by comparison with the non-diuretic situation