Nokea
Which statement about the appliance must be correct?
- A. It does not have a live connection.
- B. It has two fuses.
- C. It has two switches.
- D. It is double-insulated.
Correct Answer: D
Rationale: The correct answer is D: It is double-insulated. This is correct because double-insulated appliances have an extra layer of insulation for added safety, eliminating the need for a grounded connection. This feature protects users from electric shocks.
Explanation for why the other choices are incorrect:
A: It does not have a live connection - This is not necessarily true as appliances can have live connections depending on their design and function.
B: It has two fuses - While some appliances may have fuses, the number of fuses does not determine the correctness of the statement about the appliance.
C: It has two switches - The presence of two switches does not necessarily indicate the correctness of the statement about the appliance.
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The endocrine gland(s) that sits on top of the kidneys and secretes both metabolic stabilizers and stress regulators:
- A. pancreas
- B. adrenal glands
- C. thyroid gland
- D. pituitary gland
Correct Answer: B
Rationale: The correct answer is B: adrenal glands. The adrenal glands are located on top of the kidneys and secrete hormones like cortisol and adrenaline, which play a key role in regulating metabolism and responding to stress. The pancreas (A) primarily regulates blood sugar levels. The thyroid gland (C) regulates metabolism and growth. The pituitary gland (D) controls several other endocrine glands but is not located on top of the kidneys and does not secrete metabolic stabilizers and stress regulators.
Regarding parathyroid glands, All the following statements are true Except:
- A. They are four small yellowish brown ovoid glands
- B. They lie in relation to the posterior border of thyroid lobes
- C. Release of its hormones is controlled by pituitary gland
- D. Its hormone controls blood calcium level
Correct Answer: C
Rationale: The correct answer is C because the release of hormones by the parathyroid glands is actually controlled by the levels of calcium in the blood, not by the pituitary gland.
A: True - Parathyroid glands are four small yellowish brown ovoid glands.
B: True - They lie in relation to the posterior border of thyroid lobes.
D: True - The hormone produced by the parathyroid glands, parathyroid hormone (PTH), controls blood calcium levels by stimulating the release of calcium from bones and increasing the absorption of calcium from the intestines.
Which of the following produced only by large amounts of glucocorticoids?
- A. Normal responsiveness of fat depots to norepinephrine
- B. Maintenance of normal vascular reactivity
- C. Increased excretion of a water load
- D. Inhibition of the inflammatory response
Correct Answer: D
Rationale: The correct answer is D because glucocorticoids inhibit the inflammatory response by suppressing the immune system. Glucocorticoids reduce inflammation by blocking the production of inflammatory substances like prostaglandins and cytokines. This effect is only observed in large amounts of glucocorticoids. Choices A, B, and C are not produced exclusively by large amounts of glucocorticoids. Normal responsiveness of fat depots to norepinephrine and maintenance of normal vascular reactivity are not directly related to glucocorticoids in large amounts. Increased excretion of a water load is more influenced by other factors such as hydration status and renal function.
The only insulin that can be administered intravenously is
- A. Lente
- B. Semi-Lente
- C. regular
- D. NPH
Correct Answer: C
Rationale: Only regular insulin is approved for intravenous administration due to its rapid onset and shorter duration of action.
State what the oesophagus connects to?
- A. Throat to lungs
- B. Duodenum to gall bladder
- C. Pancreas to duodenum
- D. Throat to stomach
Correct Answer: D
Rationale: The correct answer is D: Throat to stomach. The esophagus connects the throat (pharynx) to the stomach, allowing food to pass from the mouth to the stomach for digestion. Choice A is incorrect as the esophagus does not connect the throat to the lungs. Choices B and C are also incorrect as they mention connections that do not involve the esophagus. The esophagus specifically functions to transport food and liquids from the mouth to the stomach for further digestion.