6.4.1 Motor and Somatosensory Areas

• Localisation of function in the brain refers to the idea that different brain areas are specialized for different functions
• The somatosensory area processes sensory information from the body.
• The motor cortex is located in the frontal lobe.
• Damage to the motor cortex can result in impaired sensation.

  False
• Specific brain areas are responsible for specific tasks, such as movement or sensation.
• Match the brain area with its function:

  Motor cortex ↔️ Controls voluntary movements

  Somatosensory cortex ↔️ Processes sensory information
• The motor cortex is located in the parietal lobe.

  False
• The motor cortex controls voluntary movements.
• The somatosensory cortex is located in the parietal lobe.
• Topographical organisation in the motor cortex allows for precise control of voluntary movements.
• Match the brain area feature with its description:

  Motor areas ↔️ Control adjacent muscle groups

  Somatosensory areas ↔️ Process sensory information
• Arrange the following steps to describe topographical organisation in motor areas:

  1️⃣ Motor cortex is divided into regions

  2️⃣ Regions control specific muscle groups

  3️⃣ Neighbouring regions control adjacent body parts
• The somatosensory cortex processes voluntary movements.

  False
• The motor cortex is located in the frontal lobe.
• What does the concept of localisation of function in the brain refer to?

  Brain areas are specialised
• The motor cortex is located in the frontal lobe.
• What does the motor cortex control?

  Voluntary movements
• Each area of the motor cortex corresponds to different muscle groups.
• The somatosensory cortex is located in the parietal lobe.
• What does the somatosensory cortex process?

  Sensory information
• Topographical organisation in the brain ensures that adjacent areas in the motor cortex control adjacent body parts.
• Topographical organisation enables precise control of voluntary movements.
• Match the brain area with its function or characteristic:

  Motor Cortex ↔️ Controls voluntary movements

  Somatosensory Cortex ↔️ Processes sensory information

  Topographical Organisation ↔️ Adjacent areas control adjacent body parts
• Arrange the following symptoms of damage to the motor cortex in order of severity:

  1️⃣ Muscle weakness

  2️⃣ Paralysis

  3️⃣ Difficulties with coordination
• What is a common symptom of damage to the somatosensory cortex?

  Loss of sensation
• Damage to the somatosensory cortex can cause numbness or tingling sensations.