Table of Contents
What are the elements of nervous system?
The nervous system has two main parts:
- The central nervous system is made up of the brain and spinal cord.
- The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
What are the 5 types of nerves?
Sensory refers to your five senses — touch, smell, taste, hearing, and sight — and motor nerves are responsible for controlling the movement and function of glands or muscles. Take a closer look at individual cranial nerves below.
What are the basic elements of the nervous system psychology?
Central Nervous System Structure. The CNS has three main components: the brain, the spinal cord, and the neurons (or nerve cells).
What are the 4 different types of nerves?
It is conventional, however, to describe nerve types on the basis of their function: motor, sensory, autonomic or cranial.
- Motor Nerves.
- Sensory Nerves.
- Autonomic Nerves.
- Cranial Nerves.
What are the 6 main components of the PNS?
Overview of the Peripheral Nervous System
| Components | Functions |
|---|---|
| *All the nerves in the body outside of the spinal cord and brain *Includes sensory cells, motor nerve cells, and somatic cells | *Connects the central nervous system to the parts of the body *Relays information and responses *Controls body functions |
What are the 7 major components of the nervous system?
The central nervous system (defined as the brain and spinal cord) is usually considered to have seven basic parts: the spinal cord, the medulla, the pons, the cerebellum, the midbrain, the diencephalon, and the cerebral hemispheres (Figure 1.10; see also Figure 1.8).
What are the 5 major subdivisions of the spinal cord?
Drawing of the 8, 12, 5, 5 and 1 cervical, thoracic, lumbar, sacral and coccygeal spinal nerves and their exit from the vertebrate, respectively. The cord is sheathed in the same three meninges as is the brain: the pia, arachnoid and dura.
What are the major parts of the nervous system?
The nervous system is comprised of two major parts, or subdivisions, the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS includes the brain and spinal cord. The brain is the body’s “control center.”
What kind of activities does the nervous system do?
It guides everyday activities such as waking up; automatic activities such as breathing; and complex processes such as thinking, reading, remembering, and feeling emotions. The nervous system controls: Brain growth and development. Sensations (such as touch or hearing)
How are the nervous systems of different animals different?
Nervous systems throughout the animal kingdom vary in structure and complexity, as illustrated by the variety of animals shown in Figure 1. Some organisms, like sea sponges, lack a true nervous system. Others, like jellyfish, lack a true brain and instead have a system of separate but connected nerve cells (neurons) called a “nerve net.”
Where are autonomic structures found in the nervous system?
Somatic structures include the spinal nerves, both motor and sensory fibers, as well as the sensory ganglia (posterior root ganglia and cranial nerve ganglia). Autonomic structures are found in the nerves also, but include the sympathetic and parasympathetic ganglia.