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Veronika [31]
3 years ago
14

Explain a normal tracing in order of the electrocardiogram starting with the p wave

Medicine
1 answer:
HACTEHA [7]3 years ago
7 0
The P wave indicates atrial depolarization. The P wave occurs when the sinus node, also known as the sinoatrial node, creates an action potential that depolarizes the atria.

Thank me by clicking on the heart ❤️.Thanks!
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Why is the process of blister formation a good example of the relationship between the skin's structure and function?
pentagon [3]

Answer:

The blister formation process is an excellent illustration of the connection between the structure and function of the skin because it covers the tissue below, <u>protects it from further harm and allows it to cure. </u>

Fluid collects from the upper layers of the skin (the epidermis) to the lower layers (the dermis).

7 0
3 years ago
steoporosis and related low bone mass affect many adults in North America, especially older women. One-third of all women experi
tatuchka [14]

Answer: This is TRUE for me. Osteoporosis is a preventable disease.

Explanation:

In this condition, bone density ( the amount of bone tissue) is reduced because it's deposition does not keep pace with resorption. Although the bone is adequately mineralised, it is fragile and microscopically abnormal, with loss of internal structure.

Peak bone mass occurs around 35 years and then gradually declines in both sexes. Lowered oestrogen levels after the menopause are associated with a period of accelerated bone loss in women. Thereafter bone density in women is less than in men for any given age. That is why in North America, one-third of all women experience fractures because of this disease, amounting to about 2 million bone fractures per year.

Common features of osteoporosis are:

--> skeletal deformity: gradual loss of height with age, caused by compression of vertebrae.

--> bone pain

--> fractures: especially of the hip ( neck of femur), wrist and vertebrae.

It is TRUE for me that some risk factors can't be changed ( which is the low oestrogen levels that occur after menopause in women) but others, such as poor calcium intake, can.

Exercise and Calcium intake during childhood and adolescence are important in determining eventual bone mass of an individual and in preventing risk of osteoporosis in later life.

7 0
2 years ago
4
julsineya [31]
Yes so true 1.2380 And is the 1.200 =719 juss sum1 is a great day to come
6 0
2 years ago
A nursing assistant is providing emergency care while waiting for the EMS provider to arrive. He notices a deep wound on the vic
IgorC [24]

Answer:

Elevate the arm, cover the wound with a dressing and apply pressure

Explanation:

4 0
3 years ago
Which area of research for helping SCI patients sounds the most promising to you?
frosja888 [35]

Answer:

sorry, alittle long but you need this

Explanation:

What are the symptoms?

The onset of ALS can be so subtle that the symptoms are overlooked but gradually these symptoms develop into more obvious weakness or atrophy.

Early symptoms include:

Muscle twitches in the arm, leg, shoulder, or tongue

Muscle cramps

Tight and stiff muscles (spasticity)

Muscle weakness affecting an arm, a leg, the neck, or diaphragm

Slurred and nasal speech

Difficulty chewing or swallowing

The first sign of ALS usually appears in the hand or arm and can show as difficulty with simple tasks such as buttoning a shirt, writing, or turning a key in a lock. In other cases, symptoms initially affect one leg. People experience awkwardness when walking or running, or they may trip or stumble more often. When symptoms begin in the arms or legs, it is referred to as “limb onset” ALS, and when individuals first notice speech or swallowing problems, it is termed “bulbar onset” ALS.

As the disease progresses, muscle weakness and atrophy spread to other parts of the body. Individuals may develop problems with moving, swallowing (called dysphagia), speaking or forming words (dysarthria), and breathing (dyspnea). Although the sequence of emerging symptoms and the rate of disease progression can vary from person to person, eventually individuals will not be able to stand or walk, get in or out of bed on their own, or use their hands and arms.

Individuals with ALS usually have difficulty swallowing and chewing food, which makes it hard to eat. They also burn calories at a faster rate than most people without ALS. Due to these factors, people with ALS tend to lose weight rapidly and can become malnourished.

Because people with ALS usually can perform higher mental processes such as reasoning, remembering, understanding, and problem solving, they are aware of their progressive loss of function and may become anxious and depressed. A small percentage of individuals may experience problems with language or decision-making, and there is growing evidence that some may even develop a form of dementia over time.

Individuals with ALS eventually lose the ability to breathe on their own and must depend on a ventilator. Affected individuals also face an increased risk of pneumonia during later stages of the disease. Besides muscle cramps that may cause discomfort, some individuals with ALS may develop painful neuropathy (nerve disease or damage).

7 0
2 years ago
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