Structure Of Human Brain

Explanation
The cerebrum is divided into left and right cerebral hemispheres. These hemispheres contain many gyri (ridges) and sulci (grooves). The gyri and sulci increase the surface area of the cerebrum, allowing for more neurons and connections between them. Therefore, the correct answer is gyri/sulci.

Explanation
The insula is covered by the lobes.

Explanation
The given answer, "Cerebrum," is correct. The cerebrum is the largest part of the brain and is responsible for higher cognitive functions such as thinking, memory, and perception. It is divided into four lobes: frontal, parietal, temporal, and occipital, each with different functions. The insula is a small lobe located deep within the brain and is involved in various functions such as emotion, self-awareness, and empathy. The cerebellum, on the other hand, is responsible for coordination and balance.

Explanation
The correct answer is Cerebral Cortex. The question is asking for the top layer of the cerebrum, and the cerebral cortex fits this description. The cerebral cortex is responsible for higher cognitive functions such as thinking, memory, and perception. It is made up of gray matter, which contains the cell bodies of neurons, and is covered by a layer of white matter, which contains myelinated axons.

Explanation
The cerebral cortex is a thin layer of neural tissue that covers the outermost part of the brain. Despite its small thickness, it contains a significant percentage of the neuron cell bodies in the central nervous system (CNS). The correct answer is 75%, indicating that the majority of neuron cell bodies are located within the cerebral cortex.

Explanation
The corpus callosum is a thick band of nerve fibers that connects the two cerebral hemispheres of the brain. It allows for communication and coordination between the two hemispheres, allowing them to work together and share information. Without the corpus callosum, the two hemispheres would not be able to communicate effectively, leading to impairments in cognitive and motor functions. The cerebral cortex, on the other hand, is the outer layer of the brain responsible for higher-level thinking and processing. The cerebellum is responsible for coordinating voluntary movements and maintaining balance and posture.

Explanation
The cerebrum is responsible for higher brain functions such as interpretation, reasoning, and thoughts. These functions involve processing information, making logical connections, and generating ideas or thoughts based on that information. The cerebrum plays a crucial role in cognitive processes and allows us to understand and make sense of the world around us.

Explanation
The cerebrum is the correct answer because it contains sensory, motor, and association areas. It is the largest part of the brain and is responsible for higher mental functions such as thinking, memory, and voluntary movement. The sensory areas receive and process information from the senses, the motor areas control voluntary movements, and the association areas are involved in higher cognitive processes such as decision-making and problem-solving. The cerebellum, on the other hand, is responsible for coordinating movement and balance, and the occipital lobe is primarily involved in visual processing.

Explanation
The given statement suggests that in 90% of the population, the left hemisphere of the brain is dominant over the right hemisphere. This means that the left hemisphere controls the right side of the body and vice versa, which is known as contralateral control. Therefore, the correct answer is true.

Explanation
The given description matches the structure of the cerebellum. It is located at the posterior and inferior side of the cerebrum, consists of two hemispheres connected by a vermis, and has a cortex of gray matter that surrounds the white matter. Therefore, the correct answer is the cerebellum.

Explanation
The cerebellum is responsible for coordinating skeletal muscle functions and plays a role in maintaining equilibrium. It is also involved in the coordination of movements and motor control. Additionally, the cerebellum acts as a reflex center, integrating sensory information and generating appropriate motor responses.

Explanation
The thalamus is located in the middle and inferior side of the brain. It acts as a relay station for most of the sensory impulses that reach the cerebral cortex. It is responsible for interpreting sensations such as pain, pressure, touch, temperature, and light. Additionally, the thalamus functions as a memory center and plays a role in dealing with emotions.

Explanation
The hypothalamus is located below the thalamus and above the pituitary gland. It is responsible for monitoring various aspects of blood such as temperature, water concentration, hormone concentration, and is associated with pituitary functions. Additionally, the hypothalamus also has endocrine functions.

Explanation
The given description mentions that the structure is located above the pons area and is a part of the brain stem. It also states that it contains four nuclei called CORPORA QUADRIGEMINA, which are responsible for reflex movements in response to visual and auditory stimuli. The description further mentions the presence of a pigmented area called Substania Nigra, which is associated with Dopamine secretion and gross muscle contraction. Additionally, it contains nuclei for the Oculomotor and Troclear cranial nerves. Based on these characteristics, the correct answer is Midbrain.

Explanation
The correct answer is Pons because it is located below the midbrain and above the medulla oblongata, making it a part of the brain stem. The Pons contains the Pneumotaxic Area, which helps us breathe by regulating expiration, and the Apneustic Area, which limits expiration and helps with inspiration. Additionally, the Pons contains nuclei for the Trigeminal, Abducens, and Facial cranial nerves.

Explanation
The correct answer is Medulla Oblongata. The Medulla Oblongata is located below the pons and above the spinal cord, making it part of the brain stem. It plays a crucial role in controlling vital functions such as breathing, heart rate, and blood pressure. It also helps regulate reflexes and coordinates certain movements.

Explanation
The correct answer is Medulla Oblongata. The Medulla Oblongata is a part of the brainstem and is responsible for controlling many vital functions such as breathing, heart rate, and blood pressure. It contains the Vestibular Nuclear Complex, which is associated with the sense of body position and equilibrium. It also contains the Rhythmicity area for respiration, which communicates with the Apneustic and Pneumotaxic areas of the pons to regulate breathing.