Topic 4A Anatomy of the Nervous System Flashcards
The Nervous system can be divided into 2 major regions what are they?
Central and Peripheral Nervous Systems (C & PNS)
The CNS is in the_____ and the_______
brain
spinal cord
the PNS is in what location/s______
everywhere but the brain and spinal cord
Is Nervous Tissue are present in Both CNS and PNS
Yes
Nervous Tissue contains 2 basic types of cells_______ and _______
Neurons and Glial cells
a Glial Cell is one of a variety of cells that provides a_________ of tissues that support ________and their activities
a framework,
Neurons
The Neuron is the more ________important compared to the Glial cell in terms of _______ function of the nervous system
functionally important
communicative
Structure of a Neuron: 1. the _______ (cell body) has extensions referred to as _______
Soma
Process’s
the one important process that every neuron has is called an_______
axon
an axon is: a fiber that connects a_______ to its target
neuron
The second process that branches off from the SOMA is?
dendrite
Dendrites are responsible for receiving most of the ________ form other neurons
input
What propagates the nerve impulse?
The axon
Information flows through a neuron from the ______
Dendrites
Synaptic end bulb is located at the end of the axon in the ______ ________
axon terminal
The synaptic end bulbs make the connection with the target cell at the_______
synapse
Roles of Neurons in the Nervous System: basic functions
Receiving information
Generating responses to that information
AKA (sensation) and (motor responses)
Roles of Neurons in the Nervous system: The Third function is the Integration of ________ _______, with all other sensations, memories, emotions or learning
sensory input
Roles of Neurons in the Nervous system: Some areas of the Nervous system are termed______ or________ areas.
integration or association
integration and association combine sensory perception and higher cognitive functions like memories and emotion to produce a_______
response
The NS can be divided into 2 parts, name them.
Somatic NS (SNS) and the Autonomic NS (ANS)
Somatic NS (SNS) is responsible for
conscious perception and voluntary motor responses
Somatic NS (SNS) conscious perception and voluntary motor responses include thins like _______motor response, like like contraction of skeletal muscle. It also controls ___________ (automatic motor responses) and other habit learning processes PLUS procedural memory
Voluntary
Reflexes,
The Autonomic NS (ANS) is responsible for (generally)
the involuntary control of the body for things like homeostasis
The Autonomic NS (ANS) is responsible for (specifically) Motor output extending to _________ and ________ muscle plus and glandular tissue, it also it regulates ________ ___________ (________) like sweat glands
smooth and cardiac
and glandular tissue organ systems (homeostasis),
how many neurons is in a nerve?
100-1000
