Exam 1 Flashcards
The forebrain is made up of what structures
Cerebral hemispheres, the dienephalon
Majority of neurons in the central nervous system are:
Multipolar
Cells of the nervous system that play a role in injury and act like macrophages of the CNS are:
Microglia
Cells that play a direct role in regulation blood blow to active areas of the CNS are:
Astrocytes
Cells that are responsible for electrical insulation in the periphery are
Schwann Cells
The inability of a neuron to send info from its axon terminal to the nucleus would imply a problem with what protein?
Dynein
A stillborn infant exhibited severe facial abnormalities and upon autopsy it was discovered that the brain lacked significant gyri and sulci. At this point, the most likely diagnosis is
Holoprosencephaly
During the second trimester of a pregnant 24-year-old, abnormally high levels of alpha-fetoprotein are found in her blood. Such elevated levels may be indicative of what fetal abnormality?
Neural tube defect
Failure of the metanecephalon to develp correctly will have the greatest effect on
Motor functions
Failure of proper neural crest migration will have the greatest impact on
Myelination in the PNS
Failure of the rhombic lips to form properly will most likely lead to problems with
Coordination
Several lobes of the adult cerebrum have opercular parts; the opercular cover the
Insula
An older woman slips on the ice and snacks the back of her head on the sidewalk. What function/characteristic is most likely to be compromised from an injury to the posterior aspect of the cerebrum?
Vision
A hemisection lesion of the thoracic spinal cord(Brown-Sequard) produces the following deficit
Ipsilateral loss of volunary motor acticity below the level of the lesion
Top of brain
Bottom of brain
Front of brain
Back of brain
Terms (rostal, etc.)
Top - Dorsal
Bottom- Ventral
Front - Rostral
Back - Caudal