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#Somatic nervous system labeled skin

It transmits neural signals between the brain and other body parts.

It extends from the brain up to the space between the first and the second lumbar vertebrae. It is around 45 cm long in men and 43 cm long in women. However, non-neural cells ( i.e., glial cells) provide support and protection in the CNS (oligodendrocytes, astrocytes, ependymal cells, and microglia) and the PNS (Schwann cells and satellite cells). The spinal cord is a long tubular structure composed of nervous tissue and support cells. Human Nervous System There are two types of nerve fibres associated with the PNS sensory neurons ( The PNS is further classified into somatic and The. The neuron is the structural and functional unit of the nervous system. Parasympathetic nervous system – regulates functions that do not require a quick responseĪlthough the CNS will be briefly examined, most of the emphasize will be on the PNS. Venn Diagram Use the Venn diagram to compare and contrast the somatic and autonomic nervous systems.It also controls the muscles that cause hair to stand up. Skin: Your autonomic nervous system controls your body’s ability to sweat. Sympathetic nervous system – involved in functions requiring quick responses ( i.e., stress, impending danger, and fight or flight response) Lacrimal (eyes), nasopharyngeal (nose) and salivary (mouth) glands: Your autonomic nervous system controls your tear system around your eyes, how your nose runs and when your mouth waters.

#Somatic nervous system labeled skin

Sensory receptors in the skin sense extreme temperature. When you touch a hot stove, you pull your hand away.

Autonomic nervous system – regulates the functions of internal organs - further divided into two subdivisions: The distinction between the structures (i.e., anatomy) of the peripheral and central nervous systems and functions (i.e., physiology) of the somatic and autonomic systems can most easily be demonstrated through a simple reflex action.

Somatic nervous system – conscious voluntary movements.

Nervous system is divided functionally into two major components:

Peripheral nervous system - Nerves leave the. Peripheral nervous system (PNS) – peripheral nerves and ganglia Nervous system The brain - The nervous tissue enclosed by the skull.Central nervous system (CNS) – consists of the brain and spinal cord.Nervous system is divided anatomically into two major components: Another way to think about the nervous system is according to its two main functional subdivisions: the somatic (voluntary, conscious) and autonomic. Nervous system is specialized for the rapid communication of information from one region of the body to another.