**Question:** All of the following are fluent aphasia's except

A. Broca's aphasia
B. Wernicke's aphasia
C. Conduction aphasia
D. Global aphasia

**Correct Answer:** **Option D: Global Aphasia**

**Core Concept:**
Fluent aphasia refers to a group of language disorders caused by damage to specific brain areas. There are two main types: Broca's aphasia and Wernicke's aphasia. Conduction aphasia is an older term for transcortical motor aphasia (damage to the motor pathway between the brain and the speech center), and global aphasia (also known as global cerebral aphasia) refers to a severe impairment of language production and comprehension due to bilateral (both sides of the brain) damage.

**Why the Correct Answer is Right:**
Global aphasia is characterized by a severe impairment of language production and comprehension due to bilateral (both sides of the brain) damage. Unlike fluent aphasias, patients with global aphasia usually have preserved fluency and do not benefit from repetition exercises. In contrast, fluent aphasia patients have difficulty with verbal fluency (speed and accuracy of speech production) but can usually repeat words and sentences correctly.

**Why Each Wrong Option is Incorrect:**

**Option A: Broca's aphasia**
Broca's aphasia is characterized by fluent speech, but with slow and halting speech, impaired verbal fluency, and difficulty in understanding spoken language. It is caused by damage to Broca's area, a small region in the posterior part of the left frontal lobe involved in speech production.

**Option B: Wernicke's aphasia**
Wernicke's aphasia is characterized by comprehension impairment, fluent speech, and a tendency to use inappropriate words or phrases ("echolalia"). It is caused by damage to Wernicke's area, a large region in the posterior part of the left temporal lobe involved in language comprehension.

**Option C: Conduction aphasia**
Conduction aphasia, also known as transcortical motor aphasia, is characterized by preserved fluency and comprehension, but difficulty in repeating words and sentences. It is caused by damage to the motor pathway between the brain and the speech center, affecting the ability to produce speech accurately.

**Option D: Global Aphasia**
Global aphasia, also known as global cerebral aphasia, is characterized by severe impairment of language production and comprehension due to bilateral (both sides of the brain) damage. This results in preserved fluency and comprehension but severe difficulty in producing and understanding language.

**Core Concept:**
Aphasias are disorders of language caused by damage to specific areas of the brain. They are classified into Broca's, Wernicke's, and transcortical motor aphasias based on language fluency and comprehension.

**Why Each Wrong Option is Incorrect:**

**Option A (Broca's aphasia):