Brain Structure: Cortex and Folds

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Questions and Answers

What is the term for the superficial region of the brain?

Sulcus
Cerebrum
Gyrus
Cortex (correct)

What is a characteristic feature of the brain's surface?

It is heavily wrinkled
It is convoluted (correct)
It is flat
It is entirely smooth

What is the term for a groove or furrow on the surface of the brain?

Gyrus
Sulcus (correct)
Cortex
Cerebellum

What is the term for a fold on the surface of the brain?

Gyrus (C) Signup and view all the answers

Which of the following is NOT a feature of the brain's surface?

Smooth surface (C) Signup and view all the answers

Where is CSF produced in the body?

In the ventricles by the choroid plexus (C) Signup and view all the answers

What is the main cause of hydrocephaly?

Blockage of the cerebral aqueduct (A) Signup and view all the answers

What is unique about the choroid plexus capillaries?

They have holes that allow blood plasma to leak out (A) Signup and view all the answers

What is the function of the choroid plexus?

To produce CSF (D) Signup and view all the answers

What is hydrocephaly characterized by?

Accumulation of CSF inside the ventricles (B) Signup and view all the answers

Where does the blood plasma leak into after passing through the choroid plexus capillaries?

The subarachnoid space (D) Signup and view all the answers

What is the typical origin of hydrocephaly?

Congenital, present at birth (D) Signup and view all the answers

What is the relationship between the choroid plexus and CSF production?

The choroid plexus is necessary for CSF production (B) Signup and view all the answers

What is the location of the accumulated CSF in hydrocephaly?

Inside the ventricles (D) Signup and view all the answers

What is NOT a cause of hydrocephaly?

Tumor in the lung (A) Signup and view all the answers

What is the largest ventricle in the brain?

Lateral Ventricle (C) Signup and view all the answers

Where is the lateral ventricle located in relation to the corpus callosum?

Between the corpus callosum and the fornix (D) Signup and view all the answers

Which structure is not mentioned as being near the lateral ventricle?

Cerebellum (D) Signup and view all the answers

Which statement is true regarding the lateral ventricle?

It is extensive. (B) Signup and view all the answers

Which of the following statements accurately reflects the characteristics of the lateral ventricle?

It is extensive and located between specific brain structures. (A) Signup and view all the answers

Which of the following correctly describes the relationship between a gyrus and a sulcus?

A gyrus is a bump on the surface of the cerebrum, while a sulcus is a shallow groove. (D) Signup and view all the answers

Which of the following statements accurately reflects the function of the gyri and sulci?

They increase the surface area of the cerebrum, allowing for more complex processing. (A) Signup and view all the answers

Which of the following is NOT a feature of the cerebrum?

Choroid plexus (A) Signup and view all the answers

Which of the following pairs of terms are analogous to 'gyrus' and 'sulcus' in the context of the cerebrum?

All of the above (D) Signup and view all the answers

Which of the following best describes the overall effect of the gyri and sulci on the cerebrum?

They allow for more complex cognitive functions. (C) Signup and view all the answers

Study Notes

Brain Structure

The outermost layer of the brain is called the cortex.
The surface of the cerebrum is convoluted, featuring bumps and grooves.

Gyrus and Sulcus

A bump on the surface of the cerebrum is called a gyrus.
A shallow groove on the surface of the cerebrum is called a sulcus.
These features are extensive and have simple names.

Ventricles

The largest ventricle is the lateral ventricle, which extends throughout the cerebrum.
It is located between the corpus callosum and the fornix.
Cerebrospinal fluid (CSF) is produced in the ventricles by the choroid plexus.

Choroid Plexus

The choroid plexus is a group of capillaries that produce CSF.
These capillaries have holes that allow blood plasma to leak into the subarachnoid space.

Cerebrospinal Fluid Problems

Hydrocephaly is a condition where CSF accumulates inside the ventricles.
It is usually congenital, caused by a blockage of the cerebral aqueduct.

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Description

This quiz covers the anatomy of the brain, focusing on the cortex and its convoluted surface featuring gyri and sulci. Learn about the brain's superficial region and its unique features.