Chapter 1.4

Question 1

Meninges

Answer 1

The three protective membranes - dura mater, pia mater, and arachnoid - that surround the brain and spinal cord

Question 2

Dura mater

Answer 2

The outermost of the three meninges that surround the brain and spinal cord

Question 3

Pia mater

Answer 3

The innermost of the three meninges that surround the brain and spinal cord

Question 4

Arachnoid

Answer 4

The thin covering (one of the three meninges) of the brain that lies between the dura mater and the pia mater

Question 5

Cerebrospinal fluid (CSF)

Answer 5

The fluid that fills the cerebral ventricles

Question 6

Meningitis

Answer 6

An acute inflammation of the meninges, usually caused by a viral or bacterial infection

Question 7

Meningioma

Answer 7

A noninvasive tumor of the meninges

Question 8

Ventricular system

Answer 8

A system of fluid-filled cavities inside the brain

Question 9

Lateral ventricle

Answer 9

A complex C-shaped lateral portion of the ventricular system within each hemisphere of the brain

Question 10

Choroid plexus

Answer 10

A specialized membrane lining the ventricles that produces cerebrospinal fluid by filtering blood

Question 11

Third ventricle

Answer 11

The midline ventricle that conducts cerebrospinal fluid from the lateral ventricles to the fourth ventricle

Question 12

Fourth ventricle

Answer 12

The passageway within the pons that receives cerebrospinal fluid from the third ventricle and releases it to surround the brain and spinal cord

Question 13

Hydrocephalus

Answer 13

A ballooning of the ventricles, at the expense of the surrounding brain, which may occur when the circulation of CSF is blocked

Question 14

Glymphatic system

Answer 14

A lymphatic system in the brain that participates in removal of wastes and the movement of nutrients and signaling compounds

Question 15

Blood-brain barrier

Answer 15

The mechanisms that make the movement of substances from blood vessels into cells more difficult in the brain than in other body organs, thus affording the brain greater protection from exposure to some substances found in the blood

Question 15

Cerebral arteries

Answer 15

The three pairs of large arteries within the skull that supply blood to the cerebral cortex