1.
This structure controls thought, voluntary movement, language, reasoning and perception.
Correct Answer
B. Cerebral cortex
Explanation
The cerebral cortex is responsible for controlling various cognitive functions such as thought, voluntary movement, language, reasoning, and perception. It is the outermost layer of the brain and plays a crucial role in higher-order brain functions. The cerebral cortex contains different regions that specialize in different functions, allowing for complex information processing and integration. This structure is highly developed in humans and is responsible for our ability to think, reason, communicate, and perceive the world around us.
2.
This is a collection of axons that connect the right and left hemispheres of the brain.
Correct Answer
A. Corpus callosum
Explanation
The corpus callosum is a collection of axons that connect the right and left hemispheres of the brain. It allows for communication and coordination between the two hemispheres, enabling them to work together and share information. The other options, cerebral hemisphere and corporal callosum, are not accurate terms and do not describe the specific structure mentioned in the question.
3.
This part controls vision, hearing, eye movement, and body movement.
Correct Answer
C. Midbrain
Explanation
The midbrain is responsible for controlling various functions related to vision, hearing, eye movement, and body movement. It acts as a relay center, connecting the brainstem to the rest of the brain and facilitating communication between different regions. It plays a crucial role in processing sensory information and coordinating motor responses.
4.
This structure controls movement, balance and posture.
Correct Answer
B. Cerebellum
Explanation
The cerebellum is responsible for controlling movement, balance, and posture. It receives information from various sensory systems and coordinates motor commands to ensure smooth and coordinated movements. It plays a crucial role in maintaining balance and posture by continuously monitoring the body's position and making adjustments as necessary. The cerebellum also helps in fine-tuning movements and motor skills, making it an essential structure for motor control.
5.
Part of the brain stem that controls breathing.
Correct Answer
A. Medulla
Explanation
The medulla is part of the brain stem that controls essential functions such as breathing, heart rate, and blood pressure. It contains neurons that regulate the muscles involved in respiration, ensuring that oxygen is taken in and carbon dioxide is expelled. Damage to the medulla can result in respiratory problems and even death, highlighting its crucial role in controlling breathing. The midbrain, on the other hand, is responsible for relaying sensory information and coordinating motor movements, while the respiratory system consists of the organs involved in breathing, such as the lungs and diaphragm.
6.
Deals with sensory processing and movement.
Correct Answer
B. Thalamus
Explanation
The thalamus is a part of the brain that plays a crucial role in sensory processing and movement. It acts as a relay station, receiving sensory information from various parts of the body and sending it to the appropriate areas of the brain for further processing. It also helps regulate movement by relaying motor signals from the brain to the muscles. Therefore, the thalamus is directly involved in dealing with sensory processing and movement.
7.
This is part of the brain stem. It is between the medulla and the midbrain.
Correct Answer
A. Pons
Explanation
The pons is a part of the brain stem that is located between the medulla and the midbrain. It plays a crucial role in relaying signals between different parts of the brain and the spinal cord. The pons also helps regulate essential functions such as sleep, breathing, and bladder control. Its location between the medulla and midbrain makes it the correct answer in this case.
8.
This structure extends from the base of the brain.
Correct Answer
B. Spinal cord
Explanation
The correct answer is spinal cord. The given statement suggests that the structure being referred to extends from the base of the brain. The only option that fits this description is the spinal cord, as it is a long, tubular structure that starts at the base of the brain and extends down the vertebral column. The other options, medullus and end of the brain, do not match the given description.