The peroneus brevis muscle attaches to the dorsal part of the of the most lateral metatarsal bone. What kind of mechanical machine is this musculoskelatal arrangement? Shortly explain its mechanism and indicate what are the advantages of such an arrangement?

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Answer 1
Answer:

Answer:

The answers are Tubercle and keeping the body balance over the feet, the hability of standing, avoid the body to fall, ankle plantarreflexion and foot evertion

Explanation:

The peroneus brevis muscle is located on the lateral side of the leg and it is a fusiform, and, short muscle, that becomes a tendon and passes behind the lateral malleolus. The tendon is inside a synovial sheath. It passes foward and  downward into a groove above the peroneal tubercle on the calcaneous. The distal attachment of the peroneus brevis is the tubercle on the lateral side of the base of the first metatarsal. The mechanism is responsible for foot evertion, ankle plantarreflexion, because the tendon's position, which pulls the foot in that direction.  The advantange is that this mechanism garantees important functions such as stops a sideway sway when a person is standing, controlling the body from falling to the opposite side when standing on one leg (keeps the body balanced)

Controlling the position of the foot and stopping the foot from being inverted . Sometimes the foot can over invert causing weight to be applied to the lateral surface of the foot.

Answer 2
Answer:

Answer:

the peroneus longus (also known as fibularis longus) is a superficial muscle in the lateral compartment of the leg, and acts to evert and plantarflex the ankle.

Explanation:


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Lipids in a bilayer can diffuse laterally at a relatively fast rate, but \"flip-flop\" from one leaflet to the other very slowly without catalysis. Three protein families –flippases (or flipases), floppases, and scramblases – catalyze the movement of lipids across the bilayer. Sort each of the phrases as describing flippases, floppases, or scramblases. Choose the best, most-specific enzyme name. Note: If you answer any part of this question incorrectly, a single red X will appear indicating that one or more phrases are sorted incorrectly.Not ATP-dependent, Activation may result in increased membrane lipid symmetry, ABC transporter, translocate lipids from outer (extracellular) leaflet to inner (cytosolic) leaflet, translocate phosphatidylserine, preventing apoptosis and engulfment by macrophages, move phospholipids from inner (cytoplasmic) leaflet to outer (extracellular) leaflet, move phospolipids across the lipid bilayer down the concentration gradient

Answers

Answer:

  • flippases translocate lipids from outer (extracellular) leaflet to inner (cytosolic) leaflet,
  • floppases, move phospholipids from inner (cytoplasmic) leaflet to outer (extracellular) leaflet, ABC transporter, move phospolipids across the lipid bilayer down the concentration gradient
  • scramblases Not ATP-dependent, Activation may result in increased membrane lipid symmetry, translocate phosphatidylserine,  preventing apoptosis and engulfment by macrophages,  

Explanation:

Flipases are transportes that require energy for their functioning (ATP dependent) beause they move phospolipids across the lipid bilayer against the concentration gradient  (from extracellular side to cytosolic side).

Floppases are ABC transporters, opposite than flippases (move phospholipids from the cytosolic side).

Scrablases are bidirectional transporters, responsible for asymmetry formation. It also enables exposure of phosphatidylserineon the outer leaflet when it is necessary.

Describe the functional and comparative genomics

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Answer:

Comparative genomics is a field of biological research in which researchers use a variety of tools to compare the complete genome sequences of different species. By carefully comparing characteristics that define various organisms, researchers can pinpoint regions of similarity and difference.

Functional genomics is a field of molecular biology that attempts to describe gene (and protein) functions and interactions. Functional genomics make use of the vast data generated by genomic and transcriptomic projects (such as genome sequencing projects and RNA sequencing).

Explanation:

Which of the following cellular structures is characteristic of amoebas? a. microvilli b. flagella c. cilia d. pseudopodia

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Answer:

Answer is D. Pseudopodia.

Explanation:

Pseudopodia are described as a temporary extension of the cytoplasm. These are found in some certain unicellular protists like amoeba.

The pseudopodia is useful for movement and ingestion. They are useful in capturing or engulfing prey for a process known as phagocytosis.

How can you indentify the difference between a chemical and physical change and what are signs that a chemical change has occurred

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Answer:

chemical change changes the identity of a substance, while a physical change can just be observed. Some signs that a chemical change has occurred are, temperature change, forming bubbles, color change, new substance forming, there are more, but those are just some of which i now

Explanation:

hope this helped!!!<3

Answer:

Explanation:

The formation of a gas is a clue to chemical changes. The bubbles of gas that you observed form when an antacid is dropped into water is an example of change. ... After ice melts into liquid water, you can refreeze it into solid ice if the temperature drops. Freezing and melting are physical changes.

What is the main artery of the heart that carries oxygenated blood to the body

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The main artery of the heart that carries oxygenated blood to the body is the AORTA
The Aorta is the artery that carries oxygenated to the body.

What are mechanisms of action of Triclosan and Povidone?

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Answer:

Povidone: its action is produced by oxidation and inactivation of cellular components.

Triclosan:  is absorbed by intact skin which determines its persistence and its speed of action is intermediate.

Explanation:

Povidona:

- It presents the same mechanism of action and spectrum of iodine.

- It is a water-soluble compound that results from the combination of iodine and polyvinylpyrrolidone, which improves the solubility of iodine and allows its gradual release into tissues. This effect determines less skin irritation and greater product availability over time.

- The term "available iodine" refers to the amount of iodine available as a reservoir and that of free iodine to the percentage in solution in working condition, that is, a 10% povidone iodine solution, contains 1% of available iodine and the iodine concentration Free is 1 to 2 parts of a million that remains until the available iodine is depleted. This product advantage is lost when diluted in water, since in these circumstances it behaves as an aqueous solution of iodine.

- Its activity can be diminished by the presence of blood or other organic matter.

- The concentrations commonly used as a surgical scrubber are 7.5% and 8% and in the one used for cures it is 10%.

- In relation to tincture of iodine or lugol, it presents less dermal irritation. They should be used with caution in newborns and burned

- Its antiseptic action is classified between high level and intermediate level. They are lethal in minutes for bacteria, fungi, viruses, protozoa, amoeba cysts and spores. However, in front of dry spores it requires a longer exposure time (hours).

- Iodized antiseptics have the advantage of being cheap.

Triclosan:

- It is a relatively new phenolic derivative that acts causing damage to the cell wall of microorganisms. It is broad-spectrum bacterial, better for Gram + and there is little information about its activity in viruses.

- It is absorbed by intact skin which determines its persistence and its speed of action is intermediate.

- No allergenic or mutagenic effect has been demonstrated in short periods of use.

- Its activity is minimally affected by organic matter.

- The concentrations of usual use are between 0.3% and 2%.

- It is mainly indicated for clinical handwashing where it is used in 1% breads and in 0.5% liquid preparations.