Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Central Nervous System

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
Answer
2 protective coverings of brain and spinal cord   outer-consist of bone-cranial encases the brain, vertebea encase the spinal cordinner-membranes known as meninges  
🗑
Meninges   inner covering of the brain; has 3 distinct layers: Dura mater, arachnoid mater, pia mater  
🗑
Dura mater   stong white fibrous tissue, outer later of meninges and inner periosteum of cranial bone  
🗑
Extensions of the dura mater   falx cerebri, falx cerebelli, tentorium cerebelli  
🗑
Falx cerebri   partition between the 2 cerbral hemispheres  
🗑
Falx cerebelli   separates the 2 hemispheres of the cerebellum  
🗑
Tentorium cerebelli   separates the cerebellum from the cerebrum  
🗑
Arachnoid mater   delicate, cobwebby layer between the dura mater and pia mater  
🗑
Pia mater   innermost layer of meninges, transport layer, adheres to the outer surface of the brain and spinal cord, contains blood vessels  
🗑
Spaces between and around the the meninges   epidural space, subdural space, subarachnoid space  
🗑
Epidural space   located between the dura mater adn inside the bony covering of the spinal cord; contains a supporting cushion of fat and other connective tissues  
🗑
Subdural space   located between the dura mater and arachnoid mater; contains lubricating serous fluid  
🗑
Subarachnoid space   located between the arachnoid and pia mater; contains a significant amoung of cerebrospinal fluid  
🗑
filum terminale   slender filament formed by the pia mater that blends with the dura mater and then the periosteum of teh coccyx  
🗑
Functions of the cerbrospinal fluid   provides a supportive, protective cushionreservior of circulating fluid, which is monitored by the brain to detect changes in the internal environment  
🗑
Where are the cerbrospinal fluid spaces found   subarachnoid space around the brain adn spinal cord within the cavities and canals of the brain and spinal cord  
🗑
Ventricles   4 fluid-filled spaces within the brain1-2:lateral, one located on each hemisphere3: thin, vertical pocket of fluid below and medial to the lateral ventricles4: tiny, diamond-shaped space where cerebellum attaches to the back of brainstem  
🗑
Formation and circulation of cerebrospinal fluid   occurs by separation of fluid from blood in the choroid plexuses  
🗑
Choroid plexuses   networks of capillaries that project from the pia mater into the lateral ventricles and into the roofs of the 3rd & 4th ventricles  
🗑
Amount of CSF in average adult   140ml  
🗑
Structure of the spinal cord   lies within the spinal cavity and extends form the foramen magnum to the lower border of the 1st lumbar vert, oval cylinder that tapers downward, 2 bulges, anterior median fissure and posterior median sulcus are 2 deep grooves  
🗑
Anterior median fissure   deeper and wider of the two grooves  
🗑
Nerve roots   two bundles of nerve fibers project from each side of the spinal cord: dorsal nerve root and ventral nerve root  
🗑
Fibers of dorsal nerve root   carry sensory information into the spinal canal  
🗑
Fibers of ventral nerve root   carry motor information out of the spinal cord  
🗑
Spinal nerve   single mixed nerve on each side of spinal cord where the dorsal and ventral roots join together  
🗑
Cauda equina   bundle of nerve roots extending form the conus medullaris  
🗑
Gray matter   structure of spinal cordcolumns extend the length of the cord; consist predominantly of cell bodies of interneurons and motor neurons; in transverse section looks like an H  
🗑
White matter   structure of spinal cordsurrounds the gray matter and is subdivided in each half of cord into 3 funiculi  
🗑
Funiculi   anterior, posterior, and lateral white columnsconsist of a large bundle of nerve fibers divided into smaller bundles called spinal tracts  
🗑
Spinal tracts   white columns of the spinal cord that provide consuction paths to and from the brainascending tracts carry information to the brain; descending tracts conduct impulses from the brain  
🗑
Functions of the spinal cord   provide conduction routes to and from the brain  
🗑
Structures of the brain that make up the brainstem   medulla oblongata, pons, midbrain; extends inferiorly from diencephalon to foramen magnum where it meets the spinal cord  
🗑
Location of Medulla Oblongata   attaches to the spinal cord, located just above the foramen magnum, composed of white matter and a network of gray and white matter called the reticular formation network  
🗑
pyramids   two bulges of white matter located on ventral surface of medulla  
🗑
olive   oval projection located lateral to the pyramids on the medulla  
🗑
Location of Pons   located above medulla and below the midbrain; composed of white and reticular matter  
🗑
Location of Midbrain   forms the midsection of the brain, loacted above the pons adn below the cerebrum  
🗑
Cerebral peduncles   roplelike masses of white matter that extend divergently through the midbrain, tracts within conduct impulses between the midbrain and the cerebrum  
🗑
Functions of the brainstem   performs sensory, motor, and reflex functions  
🗑
Spinothalamic tracts   important sensory tracts that pass through the brainstem  
🗑
Funtion of Pons   contains reflex mediated by 5h-8th cranial nerves and pneumotaxic centers that help regulate respiration  
🗑
Function of midbrain   integration of numerous cranial nerve reflexes, such as eye movement and ear reflexes  
🗑
Structure of cerebellum   roughly spherical structures attached at the posterior of the brainstem; wrinkled gray matter cortex, branched network of white fibers inside, and several small gray nuclei  
🗑
sulci   grooves on the surface of the cerebellum and cerebrum  
🗑
gyri   raised areas on the surface of the cerecullum and cerbrum  
🗑
Dentate nuclei   important pair of cerebellar nuclei; nuclei connected with thalamus and with motor areas of the cerebral cortex by tracts; by means of tracts cerebellar impulses influence the motor cortex and the motor cortex influences the cerebellum  
🗑
Functions of cerebellum   coordinates many functions of cerebrum, including planning and control of skilled movements, posture, balance, coordination of sensory information relating to body position and movement  
🗑


   

Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
 
To hide a column, click on the column name.
 
To hide the entire table, click on the "Hide All" button.
 
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
 
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.

 
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how
Created by: smweckler
Popular Radiology sets