Answer:
Explanation:
After the gated channels close, which is as a result of depolarization of voltage, the positive charge that has been increased in the cell will make the potassium channels to open and this will gush out of the cell through its electrochemical gradients. When potassium ion move out of the cell, the membrane potential begin to get to resting potential.
Answer:
Cellulitis
Explanation:
The infection of dermis and subcutaneous tissues is called Cellulitis.. It is commonly seen in face and at site where skin is broken such as cuts, blisters, cracks, burns, injection sites, insect bites etc.
It is caused by group A Streptococcus or Staphylococcus
Some of the common symptoms of this infection are –pain, edema and erythema and increased warmth.
The old age adults are more commonly exposed to this disease. The extent of expose increases with obesity, edema and opening in skins.
Phagocytosis is when a cell encloses a particle completely to form a phagosome. The process was originally evolved for the acquisition of nutrients by certain specialised cells. In multicellular animals, the process has been adapted to form a part of the immune system. Here, debris and pathogens are ingested by a macrophage, which then fuses with a lysosome to form a phagolysosome. Here, enzymes and toxic peroxides digest the pathogen.
<h2>Capillary Smooth Muscle Contraction</h2>
Explanation:
- Blood flows through blood vessels, which form the closed system called the circulatory system. Like a system of roads, the circulatory system has its highways, back roads, and alleyways, which we call arteries, veins, and capillaries
- Capillaries are the alleyways that extend and branch into every tissue of your body, ensuring that every cell has a blood supply. It is here, in the capillary beds, that your cells pick up oxygen and nutrients and drop off carbon dioxide and wastes
- Muscles are composed of two major protein filaments: a thick filament composed of the protein myosin and a thin filament composed of the protein actin. Muscle contraction occurs when these filaments slide over one another in a series of repetitive events
- All muscles contract as a result of interaction between special proteins within the myocytes. Skeletal, cardiac, and smooth muscle cells synthesize the contractile proteins actin and myosin, which are needed for muscular contraction
Radiometric dating reveals the exact (i think its exact) age of a fossil.
