A head drape is used for procedures of the nose and throat. It protects the eyes during surgery and prevents hair from entering the surgical field.
A head drape is the procedure of covering the patient's non-sterile region from one that is going to be operated. The process id performed to minimize the risk of unwanted objects and the infections during the surgery.
Surgical field is the sterile, microorganisms free area where the surgery is to be performed. It consists of the draped patients, the tools and equipment that are necessary to perform the operation. Even the doctors are a part of surgery field. They must be completely covered with masks on and the hands and forearms scrubbed.
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Stenting is an alternative to endarterectomy for treatment of carotid artery stenosis, but long-term efficacy is uncertain.
What is Stenting?
A stent is a small tube made of wire mesh. It holds open an artery and stays there indefinitely.
If a coronary artery (a blood vessel that supplies an accumulation narrows the heart muscle. Plaque is a fatty buildup that can lessen the blood flow. if there is less blood flow Chest pain may be caused by damage to the heart muscle.If a clot develops and entirely obstructs the a portion of the heart muscle's blood flowthe heart attack happens.Stents maintain coronary artery patency.and lower the risk of having a heart attack.
A stent is deployed by collapsing it and placing it over the
the balloon catheter. It is then brought close to the obstruction.
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<h2>Cholinergic and Adrenergic neurons</h2>
Explanation:
The autonomic nervous system (ANS) is a dual innervations system which innervates internal organs of the body through the sympathetic and parasympathetic nervous system (PNS). Depending upon the neurotransmitter and receptor used, the ANS fibers are classified as cholinergic or adrenergic neurons.
The preganglionic neurons of the sympathetic and the preganglionic and postganglionic neurons of the parasympathetic nervous system release the neurotransmitter acetylcholine (ACH) and hence are called cholinergic neurons.
The postganglionic neurons of the sympathetic nervous system releases catecholamine like norepinephrine(NE) and hence called as adrenergic neurons.
The cholinergic neurons store ACH in the synaptic terminals. They are myelinated to aid in faster neurotransmission. The ACH neurotransmitter released from preganglionic neurons activates the two receptors – nicotinic ACH and muscarinic receptors on the postganglionic neurons
.
The postganglionic neurons releasing NE binds to the adrenergic receptors – Alpha 1 and 2, Beta 1, 2, and 3.
Answer: Most commonly used device is ankle foot orthosis (AFO). Other devices include brace or splint.
Explanation:
Ankle foot orthosis and brace are the devices used to prevent foot drop in client. Some other treatment includes physical therapy, nerve stimulation and also in some cases surgery.
Physical therapy includes doing some exercises and stretching activities.
Weakness or paralysis of muscles involved in lifting the front part of our foot results in foot drop.
This may also be caused as a result of nerve injury.
Above all the causes, the main cause of foot drop is compression of nerve in leg that is responsible for controlling muscle that aid in lifting the foot.
