Nervous System Physiology

This is the correct option. 

The medulla controls various involuntary actions.

This is the correct option.

This is the correct option. Cerebrum is the main thinking part of the brain. 

This is the correct option. The brain is protected by a bony box in the skull called cranium.

This is the correct option as medulla is the controlling center for reflexes such as swallowing, coughing, sneezing, secretion of saliva and vomiting.

Kainic acid refers to a potent neuroexcitatory marine amino acid that acts by activating glutamate, the major CNS excitatory neurotransmitter.

Delta waves (0.5-4 Hz) are slow brain waves associated with deep sleep and can appear during brain damage or unconsciousness. Alpha waves are relaxed alertness, beta waves are active thinking, theta waves are drowsy/meditative states.

The cerebrum is the largest and most highly evolved part of the human brain, responsible for higher cognitive functions including consciousness, thinking, learning, memory, language, and sensory processing. While other brain regions have specialized functions, the cerebrum's complexity and capabilities make it the most sophisticated part. The cerebellum coordinates movement, while the medulla controls vital functions.

The medulla oblongata in the hindbrain controls vital autonomic functions like salivation, vomiting, and blood pressure regulation. Hearing is processed in the temporal lobe and auditory cortex, not by the medulla. The question contains a typo with '?medulla?' but the correct answer remains clear.

The medulla oblongata is located at the base of the brainstem and continues inferiorly as the spinal cord through the foramen magnum. This anatomical continuity connects the brain to the rest of the nervous system. Cerebellum, brain, and nerve cord are not the correct continuation.

The reflex arc is the neural pathway that mediates reflex actions and primarily involves the spinal cord for quick processing without brain involvement. Cerebrum handles conscious thought, pons regulates breathing, and cerebellum coordinates movement - none are primarily associated with reflex arcs.

The cerebellum is responsible for motor coordination, balance, and muscle memory - essential for activities like riding a bicycle. Cerebrum handles conscious thought, hypothalamus regulates homeostasis, and pons controls breathing. Cycling requires the cerebellum's coordination function.

The peripheral nervous system consists of 12 pairs of cranial nerves emerging from the brain and 31 pairs of spinal nerves extending from the spinal cord. These nerves connect the central nervous system to limbs and organs, enabling sensory and motor functions. The brain and spinal cord constitute the central nervous system, while the parietal, occipital, frontal, and temporal lobes are brain regions.

Three layers of meninges protect the brain: the outermost dura mater (tough mother), middle arachnoid mater (spider-like mother), and innermost pia mater (delicate mother). These membranes provide cushioning and protection while containing cerebrospinal fluid. This三层structure is consistent across mammals and essential for brain protection.