What is the unit of nervous system Mcq?
neurons
The unit which make up the nervous system are called neurons.
What is nervous system Question Answer?
Take the Nervous System Quiz. The nervous system is responsible for our thoughts, our emotions, our senses, and our movements. The brain, nerves, and spinal cord are all members of this important process.
Which is a nervous system test?
A neurological exam, also called a neuro exam, is an evaluation of a person’s nervous system that can be done in the healthcare provider’s office. It may be done with instruments, such as lights and reflex hammers.
What are the 7 nervous system?
It includes the cerebral cortex, limbic system, basal ganglia, thalamus, hypothalamus, cerebellum, brainstem, and retinas. The outermost part of the brain is a thick piece of nervous system tissue called the cerebral cortex.
What is absent in axon?
Correct option: A. Explanation: Nissl granules are absent in Axon. The neuron is made up of a cell body (cyton), dendrites (dendron), axons and axon terminals.
Which is not found in axon?
8. Which of the following is NOT found in axon? Explanation: Endoplasmic reticulum is not present in axons as it does not synthesize protein. An axon contains mitochondria, neurofibril, and microtubule and the cytoplasm of an axon is called axoplasm.
Are neuron cells?
Neurons (also called neurones or nerve cells) are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.
What are the 4 main parts of a neuron?
Introduction: The brain is made up of about 86 billion nerve cells (also called “neurons”). A neuron has 4 basic parts: the dendrites, the cell body (also called the “soma”), the axon and the axon terminal.
What are the 3 types of nervous system?
It has three parts: The sympathetic nervous system. The parasympathetic nervous system. The enteric nervous system.
What are the 3 main parts of the brain?
Main Parts of the Brain and Their Functions. At a high level, the brain can be divided into the cerebrum, brainstem and cerebellum.
Which of the following has no brain?
The nervous system in hydra is made up of nerve cells joined and spread in its whole body in the form of a network. This network of nerve cells connect sensory photoreceptors and touch sensitive nerve cells present in the tentacles that help in adjusting to the environment. It does not have a brain.