MRCP UK EXAMINATIONS

Detailed explanation-1: -These nerves form the communication network between the CNS and the body parts. The peripheral nervous system is further subdivided into the somatic nervous system and the autonomic nervous system. The somatic nervous system consists of nerves that go to the skin and muscles and is involved in conscious activities.

Detailed explanation-2: -Upper and lower motor neurons The somatic nervous system has two types of neurons: Upper motor neurons originate in the front part of the brain called the primary motor cortex. These nerve cells carry signals from the brain to the spinal cord and control voluntary movements, speed, and coordination.

Detailed explanation-3: -The somatic nervous system (SNS) is the voluntary nervous system, meaning we can choose to activate it. Its primary responsibility is the conscious control of skeletal muscle movements. The SNS also deals with some involuntary movements, such as reflexes.

Detailed explanation-4: -The peripheral nervous system is divided into two main parts: Autonomic nervous system (ANS): Controls involuntary bodily functions and regulates glands. Somatic nervous system (SNS): Controls muscle movement and relays information from ears, eyes and skin to the central nervous system.

Detailed explanation-5: -The somatic nervous system provides control of skeletal muscle movement. Conscious control of movement originates in the motor cortex (both premotor and primary motor cortex). However, movement is refined and coordinated by various structures in the CNS, including extrapyramidal regions and the cerebellum.