Lecture 9

Question 1

Name the following structures on the skull:

Answer 1

1. Frontal
2. Parietal
3. Temporal
4. Occipital

Question 2

What is the name that is given to the bone base of the bony base that supports the tentorium cerebelli a sheet of dura that seperates the cerebellum from the cerebrum?

Answer 2

The internal occiptal protrubrence

Question 3

What is the name given to the horizontal plane of the ethmoidal bone with many foramina that allow the passage of olfactory nerve filaments from the oral cavity. It is suituated just in front of the ethmoidal conchae

Answer 3

Cribiform plate

Question 4

What normally sits in the hypophyseal fossa?

Answer 4

The hypophyseal fossa in normally where the pituaritary gland would sit. It is formed by the rostral clinoid process cranially and by caudal clinoid process caudally

Question 5

What is the clinoid process?

Answer 5

The dorsal clinoid prcess is actually part of a greater portion called the crista petrosa and sticks up as a small bony portion. The rostral and caudal clinoid processs are significant enough to be observed on an X-ray

Question 6

Label the following structures:

Answer 6

1. Rostral Clinoid Process
2. Hypophyseal fossa
3. Caudal Clinoid Process
4. Crista Petrosa

Question 7

What is the name for the most outer layer of the meninges? What is it connected to:

Answer 7

The most outer layer is referred to as the dura mater. Adherant to the periosteum within the cranium. However in the spine it forms a cavity the the epidural fat will sit in.

Question 8

Provide the name of the menigies layer that presses against the dura as a result of the pressure from the central spinal fluid and briefly describe its structure:

Answer 8

The arachnoid layer. Has spider like projection that act to connect it to the pia mater.

Question 9

What is the name of the layer of the meninges that connects directly to the suface of the brain:

Answer 9

The pia matter refers to the layer of the meninges that is bound directly to the surface of the brain.

Question 10

Provide the name for the structure that is a midsagittal section between the two sides of the brain and contains a dorsal sagittal sinus within in:

Answer 10

The falx cerebri

Question 11

What is the name for the transverse fissure separating the cerebrum and the cerebellum often ossifying with age?

Answer 11

Tentorium cerebelli

Question 12

Name the following arteries:

Answer 12

1. Common carotid
2. Internal carotid
3. Occipital
4. Maxillary
5. Facial
6. Lingual

Question 13

What are the following major arteries that make up the cerbral arterial circle and the basic supply of the arterial blood to the spinal cord?

Answer 13

1. Basilar
2. Internal corroted artery
3. Rostral cerebral
4. Middle Cerebral
5. Caudal Cerebral
6. Rostral Cerebellar
7. Caudal Cerebellar