Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
|
What are the two types of nervous systems?
|
Peripheral and Central
|
|
|
Under the peripheral nervous system, what are the two headings?
|
Automatic and somatic.
|
|
|
What does somatic mean? which side of the nervous system is it?
|
Voluntary movement, peripheral
|
|
|
What are the two reactions under automatic nervous systems? what does each do?
|
Sympathetic (fight or flight, used in emergencies, dilated eyes+increased blood flow+increased heart contractions, etc) and parasympathetic (returning to homeostasis, constricting pupils+decreased heart contractions and blood flow)
|
|
|
Which two organs make up the Central nervous system?
|
Brain and spinal cord
|
|
|
Which area of the peripheral nervous system controls reflex arcs?
|
The somatic side which is decided between motor and sensory, creating the arc.
|
|
|
what is a nueron?
|
A functional unit of the nervous system. It is a single nerve cell.
|
|
|
What are the three types of neurons?
|
Motor, sensory, inter
|
|
|
What do sensory neurons do?
|
Brings messages from environment to the spinal cord.
|
|
|
What do motor neurons do?
|
Take messages to the effectors (from spinal cord to body)
|
|
|
what do inter neurons do?
|
Connect motor neurons and sensory neurons in the spinal cord
|
|
|
What are nerves? what are the three kind?
|
Nerves are a bundle of neurons. 1) motor ( carry motor neurons) 2) sensory (carry sensory neurons) 3) mixed nerves ( carry both motor and sensory neurons)
|
|
|
What is automatic broken into?
|
Sympathetic and parasympathetic
|
|
|
Where does the reflex arc occur?
|
Between the neurons of the somatic side of the peripheral nervous system.
|
|
|
What is the difference between sympathetic and parasympathetic??
|
Sympathetic is fight or flight (used in emergencies) eg: dilated pupils, increased blood flow etc. Parasympathetic is returning to homeostasis (constriction of pupils, decrease heart rate etc)
|
|
|
What makes up the central nervous system (CNS)?
|
Brain and spinal cord
|
|
|
What is a neuron?
|
A single nerve cell. It is the functional unit of the nervous system.
|
|
|
What are the 3 types of neurons?
|
Motor (takes messages to effectors), Sensory (brings message to spinal cord, and inter neuron (connects motor and sensory)
|
|
|
What are nerves?
|
A bundle of neurons.
|
