Understanding Broca’s Area And Cerebellar Function

Understanding Broca’s Area And Cerebellar Function

Question 1. Broca’s area.
Answer:

• Broca’s area is the motor area for speech
• It is present in left hemisphere of right handed persons and in right hemisphere of left handed persons
• It is a special region of premotor cortex situated in inferior frontal gyrus
• It is responsible for movement of tongue, lips and larynx which are involved in speech.

Question 2. Name three ascending tracts and specify what sensation is carried by each of them.
Answer:

Ascending tracts:

Question 3. Give any two features of cerebellar lesion.
Answer:

Features of cerebellar lesions:

• Atonia- loss of muscle tone or hypotonia – reduction in tone occurs
• Lateral deviation of arms when both the arms are stretched and held in front of the body with closed eyes
• Pendular movement occurs on eliciting tendon jerk.