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Taya2010 [7]
3 years ago
8

You have performed a head tilt-chin lift maneuver on a 17-month-old boy and are attempting to ventilate him with a bag-valve mas

k. You are experiencing a lot of resistance with each breath and the chest is barely rising. Prior to attempting ventilations again, you should:
A) tilt the head back further.
B) ease the head forward a little.
C) perform chest thrusts.
D) finger sweep the airway.
Biology
1 answer:
Igoryamba3 years ago
8 0

Answer:

The correct answer is - option B.

Explanation:

The head tilt or lift chin maneuver is the method that helps in the prevention of the blocking the airways by obstructions due to tongue more often. It is the procedure which is performed by the lifting the chin backwards or tilting the head towards back so the applied pressure that cause the ventilation normal again in the patient. If the person is not showing any improvement one should ease his/ her head forward a little so the pressure could be released.

Thus, the correct answer is - option B.

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Which of the following statements best describes the role of hormones in the body? Hormones send chemical signals throughout the
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Answer:

Hormone production and release are primarily controlled by negative feedback. In negative feedback systems, a stimulus elicits the release of a substance; once the substance reaches a certain level, it sends a signal that stops further release of the substance. In this way, the concentration of hormones in blood is maintained within a narrow range. For example, the anterior pituitary signals the thyroid to release thyroid hormones. Increasing levels of these hormones in the blood then give feedback to the hypothalamus and anterior pituitary to inhibit further signaling to the thyroid gland, as illustrated in Figure 18.14. There are three mechanisms by which endocrine glands are stimulated to synthesize and release hormones: humoral stimuli, hormonal stimuli, and neural stimuli.

Explanation:

Hyperthyroidism is a condition in which the thyroid gland is overactive. Hypothyroidism is a condition in which the thyroid gland is underactive. Which of the conditions are the following two patients most likely to have?

Patient A has symptoms including weight gain, cold sensitivity, low heart rate and fatigue.

Patient B has symptoms including weight loss, profuse sweating, increased heart rate and difficulty sleeping.Humoral Stimuli

The term “humoral” is derived from the term “humor,” which refers to bodily fluids such as blood. A humoral stimulus refers to the control of hormone release in response to changes in extracellular fluids such as blood or the ion concentration in the blood. For example, a rise in blood glucose levels triggers the pancreatic release of insulin. Insulin causes blood glucose levels to drop, which signals the pancreas to stop producing insulin in a negative feedback loop.

Hormonal stimuli refers to the release of a hormone in response to another hormone. A number of endocrine glands release hormones when stimulated by hormones released by other endocrine glands. For example, the hypothalamus produces hormones that stimulate the anterior portion of the pituitary gland. The anterior pituitary in turn releases hormones that regulate hormone production by other endocrine glands. The anterior pituitary releases the thyroid-stimulating hormone, which then stimulates the thyroid gland to produce the hormones T3 and T4. As blood concentrations of T3 and T4 rise, they inhibit both the pituitary and the hypothalamus in a negative feedback loop.

3 0
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Answer:

cell grows, DNA replicates, cell prepares for mitosis, cell divides

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Explanation:

Evolutionary adaptations- involve a change in the genetic makeup to help individuals survive in environment. Tibetans have adaptations to let them function at high altitudes

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Answer:

True

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Hyperglycemia which means high Glucose level in the blood as a result of lack of insulin can damage the glomeruli. This interfere with the function of the glomeruli. Normally glomeruli fiters blood and remove nutrients to form urine but hyperglycemia will affect it's negatively and will make protein to leak from the blood into the urine. This can also lead to glomeruli called glomerulosclerosis.

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