Table of Contents
- 1 What carries messages from the central nervous system to other parts of the body?
- 2 What carries the messages in the nervous system?
- 3 Which neurons carry messages away from the central nervous system?
- 4 Which nerves carry messages to and from the brain?
- 5 What does the dendrite do?
- 6 Which type of neuron carries messages to the brain and spinal cord?
What carries messages from the central nervous system to other parts of the body?
The Peripheral Nervous System (PNS) connects the CNS to other parts of the body, and is composed of nerves (bundles of neurons).
What carries the messages in the nervous system?
Messages, in the form of electrical impulses, constantly travel back and forth between the brain and other parts of the body. A special cell called a neuron is responsible for carrying these messages. There are about 100 billion neurons in the human brain.
What nerves carry information from the central nervous system to the rest of the body?
The peripheral nervous system (PNS), consisting of the network of nerves that branch out from the brain and spinal cord. The function of the peripheral nervous system is to transmit information back and forth between the CNS and the rest of the body.
What carry signals from the central nervous system?
Neurons or nerve cells carry signals throughout the nervous system. Groups of nerve cells get together to form the nerve tissue or nerves.
Which neurons carry messages away from the central nervous system?
Motor (or efferent) neurons: send information AWAY from the central nervous system to muscles or glands. Interneurons: send information between sensory neurons and motor neurons. Most interneurons are located in the central nervous system.
Which nerves carry messages to and from the brain?
We have three types of nerves : motor nervesthat carry messages from brain or spinal cord to motor organs only,sensory nerves that carry messages from sensory organs to spinal cordor brain only and mixed nerves that carry messages to and from both sides .
What nervous system carries signals to and from the central nervous system?
The central nervous system consists of the brain and spinal cord. Cranial nerves, spinal nerves, and ganglia make up the peripheral nervous system. The afferent division of the peripheral nervous system carries impulses to the CNS; the efferent division carries impulses away from the CNS.
Which nerves carry messages from the brain to the muscles?
The Nerves that transmits message from brain to muscles are motor nerves.
What does the dendrite do?
Dendrite – The receiving part of the neuron. Dendrites receive synaptic inputs from axons, with the sum total of dendritic inputs determining whether the neuron will fire an action potential. Spine – The small protrusions found on dendrites that are, for many synapses, the postsynaptic contact site.
Which type of neuron carries messages to the brain and spinal cord?
nervous system
| A | B |
|---|---|
| space between axon of a neuron and dendrites of other neurons | synapse |
| nerves that carry messages from the body to the brain and spinal cord | afferent or sensory |
| nerves that carry messages from the brain and spinal cord to muscles and glands | efferent or motor |
What nerves carry orders from the brain?
Cranial nerves are the nerves that emerge directly from the brain (including the brainstem). In contrast, spinal nerves emerge from segments of the spinal cord. Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck.