The Nervous System Flashcards
What is a sensory input?
Sensory receptors detecting a stimulus
What is Integration?
Nervous system processes an input and decides what should be done
What is the motor output?
Response when nervous system activates certain parts of the body
What is the term for sensory receptors detecting a stimulus?
Sensory Input
What is the term for nervous system processes an input and decides what should be done
Integration
What is the term for a response when nervous system activates certain parts of the body
Motor Output
What does the Central Nervous System (CNS) contain?
-Brain
-Spinal Cord
What is the main function of the CNS?
It is the main control centre
What is the Peripheral Nervous System?
-All the nerves branching off
-Responsible for communication with the rest of the body
What are the two divisions of the Peripheral
-Sensory Division
-Motor division
Is the sensory division afferent or efferent?
Afferent
Is the motor division afferent or efferent?
Efferent
What is the function of the sensory division?
Picks up sensory stimuli
What division picks up sensory stimuli?
Sensory Division
What is the function of the motor division?
Sends directions from brain to muscles and glands
What sends directions from brain to muscles and glands?
Motor Divison
What two things do neurons do?
-Respond to stimuli
-Transmit signals
Name all the glial cells in the central nervous system
-Astrocytes
-Microglial cells
-Ependymal cells
-Oligodendrocytes
Name all the glial cells in the peripheral nervous system
-Satellites cells
-Schwann cells
What is the function of an astrocyte?
Exchange of materials between neurons and capillaries
What is the function of a microglial cell?
Immune defence against invading pathogens
What is the function of an ependymal cell?
Create, secrete and circulate cerebrospinal fluid
What is the function of an oligodendrocyte?
Produce an insulating barrier (myelin sheath)
What is the function of a Shwannn cell?
Produce an insulating barrier (myelin sheath)
What is the function of a satellite cell?
Surround and support neuron cell bodies
Which glial cell exchanges materials between neutrons and capillaries?
Astrocyte
Which glial cell provides immune defence against invading pathogens?
Microglial Cells
Which glial cell create, secrete and circulate cerebrospinal fluid?
Ependymal Cell
Which glial cells produce an insulating barrier (myelin sheath)?
-Oligodendrocytes
-Schwann Cells
What is the function of the axon?
Transmit electrical impulses away from the body to other cells
How do electrical impulses travel through a sensory neuron?
Route
From sensory receptors to the CNS
Are sensory neurones unipolar or multipolar?
Unipolar
How do electrical impulses travel through a motor neuron?
From CNS to the rest of the body
Are motor neurons unipolar or multipolar?
Multipolar
What are interneurons associated with?
Neurons
What is the function of the interneuron?
Impulses move between sensory and motor neurons
Is the interneuron unipolar or multipolar?
Multipolar
