Two terms for the massive motor tracts serving voluntary movement are ________. |
pyramidal and corticospinal |
How many major regions are contained within the diencephalon? |
3 |
Which part of the diencephalon is connected to the pituitary gland? |
Hypothalamus |
Which region acts as a relay center for sensory messages ascending to the cerebrum? |
Thalamus |
Which region of the diencephalon contains the pineal body? |
Epithalamus |
The pineal body secretes melanocyte stimulating hormone (MSH). (True or False) |
False |
The diencephalon is found in between the brain stem and the cerebrum. (True or false) |
True |
What structure connects the right and left cerebral hemispheres? |
Corpus callosum |
Which of the following areas form the central core of the brain? |
Thalamus |
Where is the arbor vitae located? |
Cerebellum |
What part of the corpora quadrigemina is clearly observed in a midsagittal section? |
Superior colliculus |
Which region of the brain is necessary for consciousness? |
Cerebrum |
How many regions make up the brain stem? |
3 |
Which area of the brain stem is in contact with the spinal cord? |
Medulla oblongata |
Which region contains the corpora quadrigemina? |
midbrain |
Which ventricle is located within the brain stem? |
fourth ventricle |
The foramen magnum marks the border between the medulla oblongata and spinal cord. (true or false) |
true |
The inferior colliculi are part of the corpora quadrigemina. (true or false) |
true |
The blood-brain barrier is effective against ________. |
metabolic waste such as urea |
Identify cranial nerve I. |
Olfactory nerve |
Which of the following areas takes visual information from one side of the body and conveys it to the opposite side? |
Optic chiasm |
Which of the following structures is not part of the central nervous system?
Optic chiasm |
optic nerve |
Which of the following glands can be observed on the ventral surface of the sheep brain? Olfactory bulb |
pituitary gland |
Which of the following structures attach the pituitary gland to the brain? Optic chiasm |
infundibulum |
All three regions of the brain stem can be observed on the ventral surface of the brain. (true or false) |
true |
The cerebellum is present on the ventral surface of the sheep brain. True |
false |
Which ventricles are divided by the septum pellucidum? |
lateral ventricles |
What type of tissue makes up the cerebral cortex? |
gray matter |
What is the function of white matter? |
Transmits message |
The composition of gray matter includes neuron cell bodies. True |
true |
White matter has a fatty consistency. False |
true |
The brain is a solid organ that lacks cavities. True |
false |
Which of the following ventricles is found under the corpus callosum? Fourth ventricle |
lateral ventricle |
Which passageway connects the third and fourth ventricles? |
cerebral aqueduct |
Identify the passageway found in the spinal cord that is continuous with the ventricles. |
central canal |
Cerebrospinal fluid is produced within the ventricles. False |
true |
The ventricles are all interconnected. False |
true |