SCIENCE
NERVOUS SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
controls the cardiac muscles and smooth muscles as well as internal organs
|
|
|
stimulates skeletal muscles for movement
|
|
|
makes the connections between the eyes and the brain
|
|
|
stimulates the ears for better hearing
|
Detailed explanation-1: -Therefore the main function of the somatic nervous system is to connect the CNS with organs and striated muscle to perform our daily functions.
Detailed explanation-2: -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.
Detailed explanation-3: -The neuromuscular junction-where nerves and muscle fibers meet-is an essential synapse for muscle contraction and movement.
Detailed explanation-4: -The somatic nervous system consists of sensory nerves carrying afferent nerve fibers, which relay sensation from the body to the central nervous system (CNS), and motor nerves carrying efferent nerve fibers, which relay motor commands from the CNS to stimulate muscle contraction.
Detailed explanation-5: -The somatic nervous system consists of nerves that go to the skin and muscles and is involved in conscious activities. The autonomic nervous system consists of nerves that connect the CNS to the visceral organs such as the heart, stomach, and intestines. It mediates unconscious activities.