Test 10 ( physiology)
1. The light reflex involves the following structures:
a. Edinger-Westphal nucleus

b. ciliary ganglion

c. lateral geniculate body

d. oculomotor nerve

e. occipital cortex

2. The following are true about the autonomic nervous system:

a. the postganglionic neurones are largely unmyelinated

b. all preganglionic neurones are cholinergic

c. the preganglionic neurones of the sympathetic nervous system are 
    shorter than the parasympathetic nervous system

d. the parasympathetic outflow is only found in the cranial nerves

e. the sympathetic preganglionic neurones leave the spinal cord via 
    the dorsal roots of spinal nerves T1-L3


3. The effects of glucocorticoid hormones include:
a. increase hepatic glycogen synthesis

b. decrease glucose uptake by the adipose tissue

c. decrease hepatic gluconeogesis

d. increase protein synthesis in the skeletal muscles

e. decrease glucose uptake by the skeletal muscles


4. The secretion of insulin is stimulated by:
a. adrenaline

b. somatostatin

c. fatty acids

d. acetylcholine

e. amino acids

5. Insulin:

a. is secreted as a pro-insulin

b. increases protein synthesis

c. is required for glucose uptake in all tissues

d. is a steroid hormone

e. increases the uptake of lipoprotein

6. The followings are steroid hormones:

a. corticotrophic hormone (ACTH)

b. aldosterone

c. thyroxine

d. growth hormone

e. thyroid-stimulating hormones (TSH)

7. The following have a lower concentration in the cerebrospinal fluid (CSF) than 

a. glucose

b. sodium

c. potassium

d. magnesium

e. bicarbonate

8. The cerebrospinal fluid:

a. has a normal volume of 150 ml

b. has a normal opening pressure of 7 - 18 cm H2O

c. flows from the ventricles to the subarachnoid space via the 
    foramen of Monro

d. does not contain neutrophils in normal individuals

e. has a lower concentration of immunoglobulilns than the plasma

9. The following sensations are conveyed in the dorsal column of the spinal cord:

a. pain

b. temperature

c. vibration

d. proprioception

e. joint position

10. In the neurones:

a. the axons convey impulse away from the cell body

b. neurotransmitters are synthesized in the cell bodies and then 
    transported to the axons

c. the condition velocity increases with fibre diameter

d. the excitability is increased if the extracellular calcium 
    concentration is decreased

e. there is an influx of Na+ and efflux of K+ during depolarization.


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