multiple choice and true/false

the motor pattern for speech is generated in an area of cortex called the _____________ and then transmitted to the primary motor cortex to be carried out

broca area

T/F: hearing is a function of the occipitial lobe

false, hearing is a temporal lobe function; vision resides in the occipitial lobe

T/F: most of the brain's neurons are found in the cerebral cortex

false, the cerebellum contains more than half of all brain neurons

T/F: the cerebral hemispheres would fail to develop if the neural crests of the embryo were destroyed

false, the cerebral hemispheres do not develop from neural crest tissue

T/F: most of the cerebrospinal fluid is produced by the choroid plexuses

false, the choroid plexuses produce only 30% of the CSF

T/F: The two hemispheres of the cerebellum are separated by the longitudinal fissure

false, the longitudinal fissure separates the cerebral hemispheres, not the cerebellar hemispheres.

The ____________ is most closely associated with the cerebellum in embryonic development and remains its primary source of input fibers throughout life

pons

the primary motor area of the cerebrum is the _____________ gyrus of the frontal lobe

precentral

areas of cerebral cortex that identify or interpret sensory information are called _____________

association areas

Damage to the ____________ nerve could result in defects of eye movement

abducens

on a sagittal plane, the cerebellar white matter exhibits a branching pattern called the _____________

arbor vitae

linear, analytical, and verbal thinking occurs in the _____________ hemisphere of the cerebrum, which is on the left in most people

categorical

if the telencephalon was removed from a 5-week-old embryo what structure would fail to develop in the fetus?

cerebral hemispheres

CSF is secreted partly by a mass of blood capillaries called the _____________ in each ventricle

choroid plexus

the right and left cerebral hemispheres are connected to each other by a thick C-shaped bundle of fibers called the _____________

corpus callosum

the pyramids of the medulla oblongata contain

descending corticospinal tracts

all of the following except the _____________ nerve begin or end in the orbit. a. optic b. oculomotor c. trochlear d. abducens e. accessory

e

the blood-CSF barrier is formed by

ependymal cells

a lesion in which lobe of the cerebrum is most likely to cause radical alteration of the personality? _____________

frontal

abnormal accumulation of CSF in the ventricles can cause a condition called _____________

hydrocephalus

because of a brain lesion, a certain patient never feels full, but eats so excessively that she now weights nearly 270 kg. The lesion is most likely in her

hypothalamus

what is caudal to the hypothalamus?

the cerebral aquaduct

what does not receive any input from the eyes?

the frontal lobe

while studying in a noisy cafeteria, you get sleepy and doze off for a few minutes. you awaken with a start and realize that all the cafeteria sounds have just "came back" while you were dozing, this auditory input was blocked from reaching your auditory cortex by

the reticular activating system

T/F: The midbrain is caudal to the thalamus

true

T/F: respiration is controlled by nuclei in both the pons and medulla oblongata

true

T/F: the Broca area is ipsilateral to the wernicke area

true

T/F: the trigeminal nerve carries sensory signals from a larger area of the face than the facial nerve does

true

T/F: unlike other cranial nerves, the vagus nerve extends far beyond the head-neck region.

true

the brain has four chambers called _____________ filled with _____________ fluid

ventricles, cerebrospinal