(1) is the site between adjacent Schwann cells (2) is a myelin portion where the lemmocyte
cytoplasm is preserved (3) provides saltatory conduction of impulses (4) is nutrition canal
28. The following statements regarding the motor end plate are true:
(1) contains acetylcholine as a neurotransmitter (2) is formed by ending of the motor
neuron axon (3) exists on skeletal muscle fibres (4) contains glial cells
8. NERVOUS SYSTEM
Directions
: each of the following statements contains five suggested completions. Choose
the one that is best in each case.
1. Each of the following statements concerning the spinal ganglion is true, EXCEPT:
A
– contains pseudounipolar neurons; B – is associated with the spinal cord ventral root; C
– its neuron dendrites form part of the spinal nerve; D – its neuron dendrites possess
receptors; E
– its neurons are surrounded by satellite cells.
2. The dorsal root of the spinal cord is formed by:
A
– the axons of motor neurons of the spinal cord; B – the dendrites of neurons of spinal
ganglia; C
– the dendrites of motor neurons of the spinal cord; D – the axons of neurons of
spinal ganglia; E
– the axons of interneurons of the spinal cord.
3. Each of the following statements concerning the autonomic ganglia is true,
EXCEPT:
A
– contain multipolar neurons; B – the axons of their neurons are unmyelinated; C – the
axons of their neurons end on skeletal muscles; D
– contain oligodendrocytes; E –
preganglionic fibres form synapses on their neurons.
4. The gray matter of the spinal cord consists of the following structures, EXCEPT:
A
– connective tissue trabeculae; B – multipolar neurons; C – astrocytes; D –
oligodendrocytes; E
– microglia.
5. The white matter of the spinal cord consists of the following structures, EXCEPT:
A
– astrocytes; B – microglia; C – myelinated fibres; D – multipolar neurons; E –
oligodendrocytes.
6. Each of the following statements concerning the cerebellar cortex is true,
EXCEPT:
A
– its molecular layer contains stellate and basket cells; B – lacks blood vessels; C – its
granular layer contains granule cells and Golgi type II cells; D
– its middle layer contains
Purkinje cells; E
– contains protoplasmic astrocytes, oligodendrocytes, and microglia.
7. Each of the following statements concerning Purkinje cells from the cerebellar
cortex is true, EXCEPT:
A
– are located in single layer; B – their dendrites arborize in the molecular layer; C – their
axons enter the white matter; D
– are inhibitory neurons; E – conduct impulses away from
the cortex.
8. The cerebellar cortex neurons exciting Purkinje cells are:
A
– granule cells; B – basket cells; C – Golgi type II cells; D – stellate cells; E – pyramidal
cells.
9. The cerebellar cortex neurons connecting Purkinje cells along a folium are:
A
– basket cells; B – pyramidal cells; C – stellate cells; D – Golgi type II cells; E – granule
cells.
10. The cerebellum white matter contains the following structures, EXCEPT:
A
– mossy afferent fibres; B – climbing afferent fibres; C – efferent fibres (axons of
Purkinje cells); D
– glial cells; E – ependymal cells.
11. The mossy afferent fibres enter the cerebellar cortex and synapse with the
dendrites
of: