<unk> , also known as Broca's aphasia, is a type of aphasia characterized by partial loss of the ability to produce language (spoken, manual, or written), although comprehension generally remains intact. A person with<unk>  will exhibit effortful speech. Speech generally includes important content words but leaves out function words that have more grammatical significance than physical meaning, such as prepositions and articles. This is known as "telegraphic speech". The person's intended message may still be understood, but their sentence will not be grammatically correct. In very severe forms of<unk> , a person may only speak using single word utterances. Typically, comprehension is mildly to moderately impaired in<unk>  due to difficulty understanding complex grammar. It is caused by acquired damage to the anterior regions of the brain, such as Broca's area. It is one subset of a larger family of disorders known collectively as aphasia.<unk>  contrasts with receptive aphasia, in which patients are able to speak in grammatical sentences that lack semantic significance and generally also have trouble with comprehension.<unk>  differs from dysarthria, which is typified by a patient's inability to properly move the muscles of the tongue and mouth to produce speech.<unk>  also differs from apraxia of speech, which is a motor disorder characterized by an inability to create and sequence motor plans for speech.
Expressive aphasia
Global aphasia
Receptive aphasia
Anomic aphasia
Jargon aphasia
Progressive nonfluent aphasia
Hemispatial neglect
Apraxia of speech