GCU BIO 201 Exam 4 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Central Nervous System - CORRECT ANSWER - brain and spinal cord
Rostral - CORRECT ANSWER - toward forehead
Caudal - CORRECT ANSWER - Toward cord
longitudinal fissure - CORRECT ANSWER - divides cerebral hemispheres
Gyri - CORRECT ANSWER - folds
Sulci - CORRECT ANSWER - grooves
cortex - CORRECT ANSWER - surface layer of gray matter
Nuclei (in brain) - CORRECT ANSWER - deeper masses of gray matter
("mini brains" cluster of cell bodies)
tracts - CORRECT ANSWER - bundles of axons (white matter)
Gray matter - CORRECT ANSWER - neuron cell bodies, dendrites, and synapses
(on outside of brain)
White matter - CORRECT ANSWER - bundles of axons; forms tracts that connect parts of
brain
, (on inside of brain)
Dura mater - CORRECT ANSWER - Outermost layer of the meninges, tough membrane
Epidural space - CORRECT ANSWER - Filled with fat in low back
Subdural space - CORRECT ANSWER - between dura mater and arachnoid mater
Arachnoid layer - CORRECT ANSWER - middle layer, wed-like
Pia mater - CORRECT ANSWER - thin, delicate inner membrane of the meninges
(lies on gyri of brain)
Meningitis - CORRECT ANSWER - inflammation of meninges
usually found in infants
Symptoms of meningitis - CORRECT ANSWER - high fever, stiff neck (nuchal rigidity),
drowsiness, and intense headache
How to diagnose meningitis - CORRECT ANSWER - examine CSF by lumbar puncture
(spinal tap)
Brain ventricles - CORRECT ANSWER - where CSF is made
Cerebrospinal Fluid - CORRECT ANSWER - formed by choroid plexus - modified
ependymal cells
Functions of CSF - CORRECT ANSWER - forms cushion for brain and spinal cord
Exam Questions and CORRECT Answers
Central Nervous System - CORRECT ANSWER - brain and spinal cord
Rostral - CORRECT ANSWER - toward forehead
Caudal - CORRECT ANSWER - Toward cord
longitudinal fissure - CORRECT ANSWER - divides cerebral hemispheres
Gyri - CORRECT ANSWER - folds
Sulci - CORRECT ANSWER - grooves
cortex - CORRECT ANSWER - surface layer of gray matter
Nuclei (in brain) - CORRECT ANSWER - deeper masses of gray matter
("mini brains" cluster of cell bodies)
tracts - CORRECT ANSWER - bundles of axons (white matter)
Gray matter - CORRECT ANSWER - neuron cell bodies, dendrites, and synapses
(on outside of brain)
White matter - CORRECT ANSWER - bundles of axons; forms tracts that connect parts of
brain
, (on inside of brain)
Dura mater - CORRECT ANSWER - Outermost layer of the meninges, tough membrane
Epidural space - CORRECT ANSWER - Filled with fat in low back
Subdural space - CORRECT ANSWER - between dura mater and arachnoid mater
Arachnoid layer - CORRECT ANSWER - middle layer, wed-like
Pia mater - CORRECT ANSWER - thin, delicate inner membrane of the meninges
(lies on gyri of brain)
Meningitis - CORRECT ANSWER - inflammation of meninges
usually found in infants
Symptoms of meningitis - CORRECT ANSWER - high fever, stiff neck (nuchal rigidity),
drowsiness, and intense headache
How to diagnose meningitis - CORRECT ANSWER - examine CSF by lumbar puncture
(spinal tap)
Brain ventricles - CORRECT ANSWER - where CSF is made
Cerebrospinal Fluid - CORRECT ANSWER - formed by choroid plexus - modified
ependymal cells
Functions of CSF - CORRECT ANSWER - forms cushion for brain and spinal cord
