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What is paralysis of the ciliary muscles of the eye called?
cycloplegia
What hormone causes a sinking feeling in the stomach?
Adrenaline
Why Phenylephrine cause mydriasis but not cycloplegia?
Phenylephrine is an alpha one adrenergic receptor agonist. The radial muscles of the iris are innervated by neurons with alpha one receptors thus it causes dilation when stimulated. However the ciliary body of the eye (which controls accommodation) is controlled by muscarinic 3 cholinergic receptors. That pathway for accommodation remains unaffected while the iris is dilated so you will not get cycloplegia.
Can adrenaline intensify emotions such as fear and anxiety?
Yes, adrenaline causes emotions to flow at a tremendous rate. An emotion will cause fear and anxiety at greater level.
Why is stress being considered a cause of CFS?
it causes more chemical charges in the brain, it also causes more adrenaline
Is it possible that excess adrenaline causes atrial fibrillation?
Excess adrenaline can trigger atrial fibrillation in some individuals, particularly those with underlying heart conditions. Adrenaline can increase heart rate and put stress on the heart, potentially leading to irregular heart rhythms like atrial fibrillation. It is important for individuals experiencing symptoms to consult with a healthcare provider for proper evaluation and management.
Is a hormone but is not related to stress?
Hormones are sometimes the main cause of stress. Main hormone that causes is adrenaline. It causes the person to feel more tensed.
What chemical or reaction in our bodies causes our hands to tingle when we're in love or nervous?
Adrenaline (Epinephrine for the Americans!)
When is ardenaline released?
Adrenaline is released as a defense mechanism. It is released when the person is in potentially life threatening danger. Adrenaline can cause an increase of strength sometimes to unbelievable extents. Adrenaline also causes the person to focus on the situation rather than other less important things such as pain.
Can fear cause pupils to constrict?
Yes, fear can cause pupils to constrict. When the body experiences fear, the sympathetic nervous system is activated, leading to the release of adrenaline. Adrenaline causes the pupils to constrict, allowing the individual to focus on a threat and react quickly.
What is the difference between noradrenaline and adrenaline?
Both norad and adrenaline increases BP, but by different mechanism...> Adreanaline increases BP by constricting blood vessles>Noradrenaline Increases BP by increasing HR > Increase Impulse conduction > increase contraction > Increaseing volume expelled> thus increasing BP> Noradrenaline causes: (i) constriction of the cutaneous vessels; (ii) constrictionof the vessels in skeletal muscle (adrenaline causes transient vasodilatation);(iii) bradyeardia (adrenaline causes tachycardia); (iv) rise in bothsystolic and diastolic pressures (adrenaline causes a rise in systolic pressure andeither does not effect or causes a slight fall in diastolic pressure).Libin George (Apollo Victor Hospitals)
Does Jamie Dornan have any health problems?
Jamie suffers from a condition that causes him to have abnormally high rates of adrenaline in his system.
