Answer:
Standard <u>anatomical
</u> position is the agreed-upon reference for body position when studying anatomy (option 2).
Explanation:
Anatomical position consists of the placement of the human body for its anatomical study, following certain norms established and accepted by convention.
- <em>The body is observed from its front face.
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- <em>The members must be extended, showing their ventral surface and with a slight separation from the rest of the body.
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- <em>The hands show the palms, while the feet are hyperextended showing their backs.
</em>
This position is useful to provide the description of any area of the body in a specific posture, and that can be understood even by those who do not observe.
The other options are not correct because:
<em> 1) </em><u><em>Histological</em></u><em>, refers to the study of cells and tissues.
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<em> 3) </em><u><em>Superior</em></u><em>, is a directional term, indicating something located at the top of the body or closer to the head.
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<em> 4) </em><u><em>Mnemonic</em></u><em> refers to the association of words used to remember names or lists of names.</em>
Answer with Explanation:
Homeostasis<u> allows an organism to regulate its internal condition in order to adapt to a changing environment.</u> In order to maintain this, the positive and negative feedback mechanisms (loops) remain essential <em>when it comes to physiological processes that are deemed complicated.</em>
<em>Let's talk about the "Negative Feedback Loop."</em>
- The "baroreceptors" are sensors in the blood vessels.
- For example, when the body's temperature changes, the body's initial reaction is to return to its normal level. So, it goes the same way with blood pressure. When the baroreceptors sense an increase or a decrease in blood pressure, it communicates with the hypothalamus by sending a signal. Then, the hypothalamus sends a message to the organs that are responsible for returning the blood pressure to normal level. These organs are the heart, kidneys and blood vessels. So, if a person experiences a "dropping blood pressure," heart stimulation follows (causing an increase heart rate) due to hormonal vessel constriction. This also allows the kidney to retain more water, thereby increasing the blood pressure.
This is how all these elements work together to achieve homeostasis.
A action that supports two récuser CPR is having the recusers switch places every 2 minutes so they can both be able to help the victims.
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.