Topic 3: Nervous System Flashcards
Myelin sheath gaps (nodes of ranvier) are found ____?
a, in the CNS only b. on dendrites c. on the neuroglia d. on myelinated axons
d, on myelinated axons
Which class of neuron is rare in the human body and found in some special sensory organs?
a. unipolar b. bipolar c. tripolar d. multipolar
b. bipolar
All of the following are found in the PNS except ____?
a. ganglion b. satellite cells c. myelinated axons d. microglia
d. microglia
Myelin sheaths in the CNS are produced by the ____?
a. astrocytes b. microglia c. oligodendrocytes d. schwann cells
c. oligodendrocytes
Neuroglial cells that line the ventricles of the brain are the ____?
a. astrocytes b. ependymal cells c. microglia d. shwann cells
b. ependymal cells
Nociceptors respond to what type of stimulus?
a. touch b. sound c. vibration d. pain
d. pain
Receptors sensitive to stimuli arising outside the body are classified as ____?
a. baroreceptors b. exteroceptors c. proprioceptors d. interoceptors
b. exteroceptors
Nerves that only carry information to the CNS are classified as ____?
a. afferent b. efferent c. mixed d. spinal
a. afferent
A group of neuron cell bodies in the PNS is a ____?
a. nerve b. nucleus c. ganglion d. tract
c. ganglion
Nerves that innervate our upper limbs arise from the ____?
a. cervical plexus b. brachial plexus c. lumbar plexus d. cutaneous nerves
b. brachial plexus
Parts of this cranial nerve are numbed during dental work.
a. abducens (xi) b. facial (vii) c. trigeminal (v) d. vagus (x)
c. trigeminal (v)
Partial paralysis of facial muscles could be due to a problem with which cranial nerve?
a. oculomotor (iii) b. trigeminal (v) c. facial (vii) d. vagus (x)
c. facial (vii)
The area of skin innervated by a single spinal nerve is call a/an ____?
a. nerve division b. segment level c. integument segment d. dermatome
d. dermatome
Our ‘funny bone’ is actually this nerve.
a. brachial b. median c. radial d. ulnar
d. ulnar
The central sulcus divides which two lobes of the cerebrum?
a. frontal and parietal b. parietal and occipital c. parietal and temporal d. temporal and occipital
a. frontal and parietal
If you are looking at the arbor vitae, which part of the brain are you examining?
a. thalamus b. pons c. medulla d. cerebellum
d. cerebellum
The basal nuclei are part of the ____?
a. cerebrum b. diencephalon c. brain stem d. cerebellum
a. cerebrum
The innermost meninx that protects the brain and spinal cord is the ____?
a. arachnoid mater b. choroid mater c. dura mater d. pia mater
d. pia mater
Fibres that connect grey matter between the two cerebral hemispheres are called ____?
a. association fibres b. corpus callosum c. nuclei d. projection fibres
b. corpus callosum
Broca’s area is important in coordinating muscles involved in ____?
a. eye movements b. breathing c. speech d. piano playing
c. speech
The cardiovascular centre is found in the ____?
a. thalamus b. midbrain c. medulla oblongata d. pons
c. medulla oblongata
This region of the brain could be described as the relay centre of sensory input.
a. substantia nigra b. cerebellum c. hippocampus d. thalamus
d. thalamus
All of the following are factors in transferring short-term memory to long-term memory except ____?
a. association b. consolidation c. emotion d. repetition
b. consolidation
These brain waves are emitted during deep sleep.
a. alpha b. beta c. delta d. theta
c. delta
