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klasskru [66]
3 years ago
13

A motor unit is defined as:

Medicine
1 answer:
Reil [10]3 years ago
4 0

Answer:

The answer is B: All the muscle cells innervated by a single motor neurorn.

Explanation:

It is called a motor unit, all muscle fibers that are innervated by a motor neuron cell. A motor neuron cell can establish contact with up to 150 muscle fibrils, which when activated causes their simultaneous contraction, therefore, all the muscle fibers of a motor unit contract and relax at the same time.

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Which of the following medications have no primary effect on heart rate, but can lower blood pressure
Sergeeva-Olga [200]

Calcium channel blocker

These medications lower blood pressure and treat other conditions such as chest pain and an irregular heartbeat.

<h3>What are Calcium channel blocker ?</h3>

Calcium channel blockers are medications used to lower blood pressure. They work by preventing calcium from entering the cells of the heart and arteries.

  • Calcium causes the heart and arteries to squeeze (contract) more strongly. By blocking calcium, calcium channel blockers allow blood vessels to relax and open.

  • The medications may also be prescribed to relieve chest pain (angina) and control an irregular heartbeat.

  • Calcium channel blockers are also called calcium antagonists.

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5 0
2 years ago
the nurse is caring for a client admitted with peritonitis. which finding in the medical record is most likely the cause
hammer [34]

The finding of bowel obstruction in the medical record is most likely the cause.

Intestinal motility is frequently reduced by peritonsillitis, and gas-filled intestinal distension results. It may result in sepsis, multiple organ failure syndromes, or a deadly intestinal blockage if untreated. Given that peritonitis can quickly progress to potentially deadly consequences including sepsis and septic shock, which result in a sharp drop in blood pressure, organ failure, and death, it's critical to have a prompt diagnosis and start receiving the right treatment.

Infection is what causes peritonitis. A hole in your GI (gastrointestinal) tract might allow bacteria to penetrate the lining of your stomach. If you have a burst appendix or a hole in your colon, this may occur. Tertiary peritonitis, an infection or dehiscence at the site of the operation, enterocutaneous fistula, abdominal compartment syndrome, and enteric insufficiency are all peritonitis complications.

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4 0
1 year ago
An IV bag of 500 mL solution is started at 1900. The flow rate is 38 gtts per minute, and the drop factor is 10 gtts per mL. At
Ronch [10]

Answer: your bag will finish at 2112.

Explanation: (38gtt/min) × (10gtt/ml).

Cross multiply. (38gtt×1ml) × (1min×10gtt)

This gives you 38/10...and the gtts cancel out so, it's 38ml/10min.

Simplify this to 3.8 ml/min.

Now, 3.8ml/x min = 500 ml.

Take 500/3.8. This gives you about 132 minutes if you round to the nearest minute. 60 min/he means 132 min = 2h12m. 2h12m from 1900 is 2112.

6 0
3 years ago
An acidic urinary ph significantly increases the risk for what type of urinary stone formation?
PilotLPTM [1.2K]

The acidic urinary pH increases the formation of uric acid or cysteine crystals. Therefore, kidney stones are very much influenced by urinary pH. More acidic urine and a higher frequency of uric acid stones have been associated with patients with inadequate ammonium excretion of metabolic syndrome.

Kidney stone disease results from deficiencies in urinary acidification, which result in the excretion of improperly alkaline or acidic urines, respectively. Patients with uncommon mendelian kidney stone variants have mutations in several enzymes, transporters, receptors, or channels. Numerous of these alterations either result in an increase in the excretion of chemicals that can crystallise or stone, a change in the composition of the urine that promotes crystal formation, or both.

Kidney stones can occur as a result of a variety of variables

  • dietary choices
  • environmental exposure
  • behavioural choices

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8 0
2 years ago
What does the rest on the partial denture do
Irina18 [472]

Answer:

It prevents displacement of the clasp into the gums the rest maintains the level of the clasp at which it engages the tooth surface. It serves as a reference pointfor evaluating fit of framework on the teeth.

Explanation:

6 0
3 years ago
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