08. The Nervous and Endocrine Systems Flashcards
The Nervous and Endocrine Systems
THe nervous system is divided into 2 systems. These are known as what
- CNS - Central Nervous System
- PNS - Peripheral Nervous System
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The Nervous and Endocrine Systems
The PERHIPERAL NERVOUS SYSTEM (PNS) is subdivded into what 2 functions
- SOMATIC NERVOUS SYSTEM
- AUTONOMIC NERVOUS SYSTEM
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The Nervous and Endocrine Systems
A decrease in the PHYSIOLOGICAL response as a result of repeated exposure to a stimulus is known as what
SENSORY ADAPTION
REMEMBER
* Adaptation = Shorter | Physiological
* Habituation = Longer | Physiological and Psychological
* Habits are long lasting, like biting your nails which is a psychological trait
EXAMPLE
* Night adaptation. When the rods become more sensitive the longer they are aware from bright lights
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The Nervous and Endocrine Systems
A decrease in the PHYSIOLOGICAL ahd PSYCHOLOGICAL response as a result of repeated exposure to a stimulus is known as what
SENSORY HABITUATION
REMEMBER
* Adaptation = Shorter | Physiological
* Habituation = Longer | Physiological and Psychological
* Habits are long lasting, like biting your nails which is a psychological trait
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The Nervous and Endocrine Systems
A danger of a pilot becoming habituated to a stimulus is that;
[ ] It may result in hypo vigilance
[ ] It may trigger inappropriate alarm responses
[ ] You may not notice it
[ ] You may become dependent on it
[ ] It may result in hypo vigilance
[ ] It may trigger inappropriate alarm responses
[X] You may not notice it
[ ] You may become dependent on it
EXAMPLE:
* eye becoming used to an unchanging visual scene when flying over snow covered terrain
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The Nervous and Endocrine Systems
THe name given to the increase in stimulus required for a person to notice a change
DIFFERENCE THRESHOLD
aka Just Noticable Difference (J.N.D)
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The Nervous and Endocrine Systems
For a NEURON to signal the brain, the stimulus must be above what level
SENSORY THRESHOLD
- increasing the sensory threshold means you will have less stimulus
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The Nervous and Endocrine Systems
What system is responsible for detecting stimuli and coordinating the body’s response
NERVOUS SYSTEM
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The Nervous and Endocrine Systems
The NERVOUS SYSTEM is responsible for what 2 functions
- STIMULUS - detecting stimuli
- RESPONSE - coordinating body’s response
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The Nervous and Endocrine Systems
What is the name given to the sensory cells that pass pass inputs along the sensory nerves to the brain
RECEPTORS
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The Nervous and Endocrine Systems
Sensory nerves are made up of bundles of cells which use eletrochemical signals to transmit information. These are called what
The CNS and PNS use a special type of cell called a ____ to transmit information and trigger and control responses
NEURONES
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The Nervous and Endocrine Systems
Where neurons join, there is a small gap between them. This gap is called a ____, which the signal, or impulse, has to jump using electrochecmical signals
SYNAPSE
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The Nervous and Endocrine Systems
The sensory nerves pass signals to the ____ and then to the ____ along relay neurons
The CENTRAL NERVOUS SYSTEM (CNS) comprises what what 2 elements
- SPINAL CORD
- BRAIN
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The Nervous and Endocrine Systems
The brain on receivping and prcessing information will decide if any action is required to be taken to the stimulus. If so, signals are sent to the glands and musles along what
MOTOR NEURON
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The Nervous and Endocrine Systems
What system is responsible for detecting stimuli and coordinating the body’s response
CENTRAL NERVOUS SYSTEM
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The Nervous and Endocrine Systems
What is the SOMATIC NERVOUS SYSTEM responsible for
CONSCIOUS FUNCTIONS
body movement, sensing external stimuli, voluntary activities
REMEMBER
* The “ESSS” sound in consiou”ESSS”
* Somatic beings with “ESSS”
* Stimuli beings with “ESSS”
* Unconscious decisions are automatic i.e. AUTOnomic
The Nervous and Endocrine Systems
What is the AUTONOMIC NERVOUS SYSTEM responsible for
UNCONSCIOUS FUNCTIONS
control of blood vessels and internal organs, involuntary activities
REMEMBER
* The “ESSS” sound in consiou”ESSS”
* Somatic beings with “ESSS”
* Stimuli beings with “ESSS”
* Unconscious decisions are automatic i.e. AUTOnomic
The Nervous and Endocrine Systems
“Controls automatic activity such as breathing and heart rate”
This is the definition of which brain zone
MEDULLA OBLONGATA
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The Nervous and Endocrine Systems
“Controls water balance and temperature”
This is the definition of which brain zone
HYPOTHALAMUS
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The Nervous and Endocrine Systems
“Controls growth, blood pressure, blood sugar level, the hyroid and adrenal glands, and ovaraies or testes”
This is the definition of which brain zone
PITUITARY GLAND
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The Nervous and Endocrine Systems
“Controls balance and posture”
This is the definition of which brain zone
CEREBELLUM
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The Nervous and Endocrine Systems
“evolutionarily more advanced and is responsible for memory, imagination, thought, sight, sound and taste
This is the definition of which brain zone
CEREBRAL CORTEX
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The Nervous and Endocrine Systems
How does the ENDOCRINE SYSTEM send messages around the body
HORMONES
(Chemical Messages)
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The Nervous and Endocrine Systems
“The glands within this system provide self regulating control of many of the body processes by secreting hormones into the bloodstream in response to chemical and nervous stimuli”
This is the definition of what body system
ENDOCRINE SYSTEM
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