Question

Very specific functions are carried out in specific regions of the brain. Use what you learned in chapter 11 to describe the parts of the brain involved in understanding words and formulating words/speaking. Then explain why young children are able to understand words before they are able to speak.

Answer 1

1. The brain is composed of the cerebrum, cerebellum, and brainstem.

Cerebrum: is the largest part of the brain and is composed of right and left hemispheres.

• It performs higher functions like interpreting touch, vision and hearing, as well as speech, reasoning, emotions, learning, and fine control of movement.

Cerebellum: is located under the cerebrum.

• Its function is to coordinate muscle movements, maintain posture, and balance.

Brainstem or Medullaoblangata acts as a relay center connecting the cerebrum and cerebellum to the spinal cord.

• It performs many automatic functions such as breathing, heart rate, body temperature, wake and sleep cycles, digestion, sneezing, coughing, vomiting, and swallowing.

2. The cerebrum is divided into two halves: the right and left hemispheres., the left hemisphere controls speech, comprehension, arithmetic, and writing. The right hemisphere controls creativity, spatial ability, artistic, and musical skills. The left hemisphere is dominant in hand use and language in about 92% of people.
3.
All babies have a universal, inherited, built-in signaling system with which they both send and receive signals. This signaling is done especially through facial expressions and vocalizations. These signals are called feeling such as joy, surprise, anger, and fear. At first, then, a child may gather meaning through your tone of voice, inflection, gestures, and facial expressions. they are learning words and meanings long before they can speak.

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