Neuro A&P Flashcards
The cranium is comprised of ________ bones.
Eight
The bone that forms the back of the cranium is the ____________ bone.
Occipital
What is the name of the protective covering of the brain and spinal cord?
The meninges
What is the outer most layer of the meninges?
Dura mater
The middle layer of the meninges is known as the ____________.
Arachnoid
The layer of meninges that lies closest to the brain is known as the ________.
Pia matter
The space between the pia mater and arachnoid is called the __________.
Subarachnoid space
In what space does CSF circulate?
Subaracnoid
What is the tough fibrous outer meninges known as?
Dura mater
CSF is the abbreviation for ________.
Cerebrospinal fluid
What represents the largest portion of the human brain?
Cerebrum
The brain’s surface is covered with convolutions known as ______.
Gyri
What are the shallow depressions that separate the convolutions?
Sulci
The procedure being performed is a craniotomy. The first layer incised will be the ______.
skin
What is the second largest structure of the brain?
Cerebellum
What structure is located posterior to the medulla oblongata
Cerebellum
What structure connects the brain to the spinal cord?
brain stem
What 3 structures make up the brain stem?
Midbrain, pons, medulla oblongata
What are the ring of arteries that supply blood to the brain known as?
Circle of Willis
How many pair of cranial nerves are present in the human body?
12
What structures are responsible for sensory and motors functions of the body?
Cranial nerves
Primary neoplasms arise from ______.
the meninges
Secondary neoplasms come from ____________?
other parts of the body
If secondary neoplasms come from other parts of the body, this means that they are __________
metastatic
A type of malignant tumor, astrocytoma, is also known as a ___________
glioma
Where do subdural hemorrhages occur?
Below the dura
AVM is a type of congenital defect. What does AVM stand for?
Arteriovenous malformation
What is an arteriovenous malformation?
An abnormal communication between arteries and veins that divert blood from surrounding brain tissue.
A benign tumor that arises from the meninges.
meningioma
What are week spots in the walls of arteries?
Aneurysms
