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1. When a patient has significant blood loss, which of the following clinical findings would you expect to find that signifies the presence of shock? A. Flushed, warm, dry skin. B. Slowed breathing and a bounding pulse. C. Rapid heart rate. D. Calm and relaxed demeanor with mental alertness and verbal responsiveness. Click the card to flip 👆.
Study with Quizlet and memorize flashcards containing terms like A deep cut to the skin damages blood vessels. What is the first step in preventing excessive blood loss through the wound?, Hemophilia is a blood disorder resulting from defects in ________. which of the following?, Which blood component is NOT classified as a mature white blood ...
Study with Quizlet and memorize flashcards containing terms like T/F A blood test may be performed to determine if an individual has experienced a myocardial infarction., T/F A common symptom of phlebitis is a dark blue pooling of blood near the ankle., A hemothorax is: and more.
NREM stage 3 sleep is often referred to as deep sleep or slow-wave sleep because this stage is characterized by low frequency (less than 3 Hz), high amplitude delta waves (Figure 4.10). These delta waves have the lowest frequency and highest amplitude of our sleeping brain wave patterns.
- How Neurotransmitters Work
- After Neurotransmission
- Classification
- Types
- Disorders Associated with Neurotransmitters
- The Effects of Drugs
In order for neurons to send messages via neurotransmitters, they need to communicate with each other, which they do through synapses. When signals travel through a neuron and reach the end of that neuron, they cannot simply travel through to the next one. Instead, the neuron must trigger the release of neurotransmitters, which then carry signals a...
The neurotransmitters released from the presynaptic neuron may either excite or inhibit the postsynaptic neuron, telling it to either release neurotransmitters, slow down the release, or stop signaling completely. After neurotransmission, the signal is terminated, allowing the neurons to return to a resting state. Therefore, the neurotransmitters e...
A neurotransmitter can influence neurons in one of three ways: it can excite, inhibit, or modulate them. 1. Excitatory neurotransmitters– these types have an excitatory/stimulating effect on the neurons. If a neurotransmitter is excitatory, it will increase the likelihood that the neuron will fire action potential. Examples of these types of neurot...
There are over 50 known types of neurotransmitters. Some of the main classifications are described below in a few categories: monoamines, amino acids, peptides, purines, and acetylcholine.
Symptoms associated with mental health conditions such as mood and anxiety disorders and schizophreniaare believed to be the result in part from an imbalance of neurotransmitter levels in the brain. With anxiety disorders, this may reflect the reduced GABA activity in the brain and an imbalance of its receptors. This has also been shown to be linke...
Medication
1. Selective Serotonin Re-uptake Inhibitors (SSRIs) are a type of antidepressant used to relieve symptoms of conditions such as depression, anxiety, posttraumatic stress disorder, panic disorder, obsessive compulsive disorder, and phobias.SSRIs work by blocking the reuptake of the neurotransmitter serotonin into the neuron that released it. This means that there will be a build up of serotonin in the synaptic cleft, making it more likely that serotonin will reach the receptors of the next neu...
Illicit Drugs
Depending on the type, illicit drugs can either slow down or speed up the central nervous system and autonomic functions. Marijuana contains the psychoactive chemical tetrahydrocannabinol (THC) which interacts with, and binds to cannabinoid receptors. This produces a relaxing effect and can also increase levels of dopamine. Heroin binds to the opioid receptors and triggers the release of extremely high levels of dopamine. The more that heroin is used, the more likely a tolerance will develop...
Jan 17, 2024 · The limbic system is a complex set of brain structures involved in emotion, motivation, memory, and behavior regulation. Key components include the amygdala, hippocampus, thalamus, hypothalamus, basal ganglia, and cingulate gyrus.
Study with Quizlet and memorize flashcards containing terms like Definition of psychological disorder, psychological disorders are maladaptive, 3 D's that signify a disorder and more.
