Pernicious anemia produces red blood cells that are <u>large</u> and<u> vitamin B12</u> deficiency contributes to pernicious anemia.
Explanation:
When there is a lack of intrinsic factor, secreted in the parietal cells of the gastric mucosa or the stomach lining, vitamin B12 absorption from the stomach is affected.
Vitamin B12 is one of the key factors responsible for normal synthesis and maturation of fully functional red blood cells (RBCs).
The main function of the RBCs is to carry oxygen through hemoglobin to all parts of the body. In order to transport oxygen, the RBCs must be mature with normal shape (concave center and circular shape) and size.
When there is a lack of vitamin B12, the RBCs are not matured and immature, megaloblastic, large, irregularly-shaped red blood cells are formed and circulate in the blood. This also leads to macrocytosis of RBCs.
These cannot function as normal mature blood cells because of the irregular shape and cannot carry hemoglobin to transport oxygen.
Otitis media
Infection of the middle ear and also has manifestations in the respiratory system(ear nose and throat system is connected)hence causing the cough and slight running nose
Answer:
They help patients with their personal hygiene needs, such as dressing or bathing. In some facilities, nursing assistants deliver meals, and, if necessary, help them eat. They might also take patients' temperature, blood pressure and other vital signs.
Explanation:
Answer:
When a liquid inside a glass container is measured, the bottom of the meniscus is observed to get an accurate measurement.
Explanation:
The meniscus is the curve seen at the top of the liquid and it can be either concave or convex in shape as per the liquid used. For example, liquids like water produce a concave meniscus. the meniscus is measured by keeping the glassware to the eye level by bringing it to your level or bending down. The measurement is taken from the center of meniscus. For instance, Liquids are measured from the bottom of meniscus and mercury is measured from the top of meniscus.
