Answer:
b) Tendon
Explanation:
Tendons are fibrous, thick, stiff and flexible structures, with a whitish color, present in different parts of the human body.
They are part of the striated muscle being made up of connective tissue (composed of collagen).
The main function of the tendons is to connect the muscles to the bones. In this way, it helps in the balance of the body and in the development of movements, distributing the forces in the muscles.
As it pulls the connecting bone with the muscle, the tendon creates the movement in order to transmit the force of the contraction to the bone.
In addition, the tendon provides stability to the joints (meeting point between two bones) of the body's joints.
DNA can be found in both bacterial and animal cells
L.S. is brought to the emergency department for management of acute mushroom poisoning. Her respirations are slow and shallow, and she is nonresponsive. She is admitted to the critical care unit to be closely monitored for the development of respiratory failure and renal failure, which often accompany mushroom poisoning. Her urine output is decreased to about 20 ml/hr. Her laboratory values are serum K+ = 5.7 mEq/L; arterial blood gases (ABGs): pH = 7.13, PaCO2 = 56 mm Hg, PaO2 = 89 mm Hg, HCO3- = 18 mEq/L.
1A. What is the most likely cause of L.S.’s potassium imbalance? Explain the role of the kidney in potassium excretion
Answer: L.S. is experiencing a intrarenal acute renal failure in the category of tubular necrosis (due to ingested mushroom toxins).
The kidneys helps to maintain the electrolyte concentrations by filtering electrolytes and water from blood, routing some to the blood, and excreting any excess into the urine.
Therefore, the kidneys help to maintain a balance between daily consumption and excretion of electrolytes and water.
Explanation:
Daily variations in potassium excretion are controlled mainly by changes in secretion in distal and collecting tubules.
• Maintaining potassium balance depends primarily on renal excretion which is determined by:
• the rate of potassium filtration
• the rate of potassium reabsorption by the tubules o the rate of potassium secretion by the tubules
i.e. About 65% the filtered potassium is reabsorbed the proximal tubule and another 25% to 30% in the ascending loop of Henle.
The right answer for the question that is being asked and shown above is that:(1) B) is the main means by which new species arise(2) C) If two organisms look different, they must be different biological species.(3) D) Two crayfish species cannot interbreed because their genitalia do not engage properly with each other.(4) A) genetic drift(5) D) punctuated equilibrium
Half-life is the time taken by a substance (molecule, drug or other) to lose half of its proportion. Used by extension in the field of radioactivity, the half-life, also called radioactive half-life, is the time at which half of the radioactive nuclei of a source have disintegrated.
The term half-life is often misinterpreted: two half-lives do not correspond to the full life of the product. The half-life is, in fact, the median of the life of a product, that is to say, the duration below which there remains more than 50% of the product, and beyond which there remains less than 50%. So two half-lives correspond to the duration where 50% of the 50% of the product remains, ie 25% (the quarter).
