Chapter 12
The Central Nervous System
Place the following embryonic stages in the correct order.
Neural tube
Neural plate
Neural fold
Listed below are the primary brain vesicles. Beside each, list the secondary brain vesicles and adult brain structures that arise from each primary vesicle.
Prosencephalon
Mesencephalon
Rhombencephalon
Define the following:
Gyrus
Sulcus
Fissure
Beside each region of the cerebral cortex, list its function:
Primary motor cortex
Premotor cortex
Broca’s area
Primary somatosensory cortex
Somatosensory association cortex
Primary visual cortex
Visual association area
Primary auditory cortex
Auditory association area
Olfactory cortex
Gustatory cortex
Vestibular cortex
Prefrontal cortex
Wernicke’s area
General interpretation area
Visceral association area
What is meant by lateralization of cortical functioning?
What is the difference between commissures, association fibers, and projection fibers?
What is the function of the basal nuclei?
The thalamus is made of many regions, or nuclei. What is the basic function of the thalamus?
The hypothalamus has many functions. They are:
a.
b.
c.
d.
e.
f.
g.
What are the two part of the epithalamus, and what does each do?
a.
b.
The Brain stem consists of 3 regions. What are they?
a.
b.
c.
Define the following:
Folia
Arbor vitae
Purkinje cells
What kinds of activities does the cerebellum seem to be involved in?
What is the function of the limbic system?
What are the functions of the Reticular Formation?
What are the three layers of the meninges?
a.
b.
c.
From where does cerebrospinal fluid arise, and what structure is responsible for forming it?
In what areas would you find CSF?
What is meant by the term “blood-brain barrier”?
Identify the following terms with respect to their anatomy or function.
Epidural space
Conus medullaris
Cervical and lumbar enlargements
Cauda equina
Draw a cross section of the spinal cord, and label these parts:
Posterior horn Dorsal roots
Anterior horn Ventral roots
Lateral horn Dorsal root ganglion
Gray commissure Spinal nerve
Central canal Anterior median fissure
Posterior funiculus Posterior median sulcus
Anterior funiculus Lateral funiculus