The nerve Cell And It's Parts Flashcards
____ ___ are also called neurons.
_____ are present all over our body, especially in our brain and spinal cord. ____ together with your brain and spinal cord are the foundation of your nervous system.
The basic unit of communication in the nervous system is the ____ or ____
Nerve cells
Neurons
Nerves
Nerve cell/neuron
There are 86 billion neurons in the human brain, what are the three different types of neurons?
Sensory
Motor
Interneuron
This neurons take sensory information from the environment and sends the signal to the brain like getting poke with a needle.
Sensory neuron
This neurons communicate information from the brain to the tissues and organs throughout the body allowing for movement.
Motor neuron
These neurons make up the majority of neurons in the body they are essentially the middleman transmitting information between sensory and motor neurons they play a key role in learning memory and planning
Interneuron
This part of the neuron is also known as a soma, it is the core section of the neuron.
The blank contains genetic information maintains the neuron structure and provides energy to drive activities
a neuron soma contains a nucleus and specialized organelles
Cell body
_______ are the receiving or input portions of a neuron.
These are the finger like cells present on the end of a neuron.
They are short branching fibers extending from the cell body of the nerve cell.
This fiber increases the surface area available for receiving and coming information.
Dendrites
____ an oval shaped membrane bound structure found in the soma or body of the neuron.
It contains a nucleolus and chromosomes necessary for the coded production of proteins within the cell.
The nucleolus of the ____ produces ribosomes.
Nucleus
____ carries nerve impulses away from the cell body a neuron typically has one ____ that connects it with other neurons or with muscle or gland cells.
Axon
A _____ ____ is a sleeve that’s wrapped around each nerve cell.
It’s a protective layer of fat and protein that coach the main body section of a neuron.
Mylene sheath
An ____ ____ contains various neurotransmitters that are released at the small gap between two communicating neurons.
This gap is called synapse.
the neuron that sends nerve impulses by releasing your transmitters via the ___ ___ at the synapse is called a, ______ neuron.
Axon terminal
Presynaptic