Answer:
The correct option is : a. causing threshold to be reached more quickly
Explanation:
Norepinephrine, also known as noradrenalin, is an organic compound, which belongs to the catecholamine family. It acts as a hormone and a neurotransmitter in the brain and the body and also impacts the heart.
It is one of the hormones secreted by the adrenal medulla. Norepinephrine is a part of the fight-or-flight mechanism of the body. It acts by binding to the β-1 receptors and opens the chemical or ligand gated calcium and sodium ion channels. Therefore, <u>it causes the threshold to be reached faster </u>by increasing the rate of depolarization and thus causes heart arrhythmia.
Therefore, <u>Norepinephrine acts on the heart by </u><u>causing threshold to be reached faster.</u>
patient with iron deficiency anemia will have low hemoglobin levels as well as microcytic and hypochromic RBCs, according to the results of a complete blood count. Typically, the reticulocyte count is normal or slightly increased.
<h3>what is
iron deficiency anemia?</h3>
- Insufficient iron is the cause of iron deficiency anemia.
- Your body needs iron to produce enough of a component in red blood cells that makes it possible for them to carry oxygen (hemoglobin).
- Thus, iron deficiency anemia may make you feel lethargic and breathless.
<h3>How serious is iron deficiency anemia?</h3>
- Iron-deficiency anemia can have major side effects, including fatigue, headaches, restless legs syndrome, heart issues, problems during pregnancy, and delays in a child's development.
- Additionally, iron deficiency anemia can worsen other chronic illnesses or render their therapies ineffective.
<h3>What three levels of iron deficiency are there?</h3>
Deficiency in Iron Has 3 Stages
- Stage 1: A decrease in the body's overall iron content. A decrease in serum ferritin serves as an indicator of this stage.
- Stage 2 Reduced red blood cell production. This stage develops when there is not enough iron available to sustain the production of red blood cells.
- Stage 3 Iron deficiency anemia.
learn more about Iron deficiency anemia here
<u>brainly.com/question/866200</u>
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At the shoulder, the head of the humerus articulates with the glenoid fossa of the scapula. More distally, at the elbow, the capitulum of the humerus articulates with the head of the radius, and the trochlea of the humerus articulates with the trochlear notch of the ulna.
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