Answer:
The chemical receptors of cells have been defined as molecular structures to which other molecules considered as chemical messengers (neurotransmitters, hormones and other neuroactive molecules) specifically bind.
Chemical receptors can be located on the plasma membrane into which they insert by crossing it. Membrane domains have been defined for them and also on both sides of the membrane. The one on the external side corresponds to the binding site for messengers that come from other cells, a situation that defines the so-called heteroreceptors. If messengers coming from the cell itself join that site, the so-called autoreceptors are defined.
But chemical receptors can also be located inside cells. They are intracellular receptors and are found in the cytoplasm or in the nucleus. Messages act on them, which due to their chemical nature can cross the plasma membrane, such as steroidal hormones, thyroid hormones and neurosteroids
Explanation:
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Answer:
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Explanation:
The birth outcomes to emerge as significant correlates of co-use of Cannabis and tobacco cigarettes were small head circumference, and the occurrence of birth defects i.e. teratogenicity.
<h3>What is teratogenicity?</h3>
- Teratogenicity is the ability of a drug or chemical to cause fetal abnormalities or deformities.
- The drugs, chemicals, or even infections causing teratogenicity in fetus are called teratogens.
- Common teratogens includes some medications, recreational drugs, tobacco products, chemicals, alcohol, certain infections, and in some cases, uncontrolled health problems in the birthing parents.
- Teratogens are most harmful early in pregnancy, starting about 10 to 14 days after conception to about 8 weeks into pregnancy.
- Teratogens can cause neural tube defects such as spina bifida. Some organs are sensitive to teratogens during the whole pregnancy. This includes the brain and spinal cord of baby.
- Alcohol affects the brain and spinal cord, so it can cause harm at any time during pregnancy.
- To prevent teratogenicity avoid use of chemicals that may harm child like pesticides, fungicides, rodenticides or harsh cleaning products.
- Avoid smoking, and alcohol consumption to prevent teratogenicity.
To learn more about Teratogenicity,
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Answer: Medical Assistant
Explanation:
A Cardiologist is someone who specializes in the study or treatment of heart diseases and heart abnormalities. It says she is "direct aid to a famous heart surgeon." There for it would either be Medical assistant or none of the above.
Answer:
a. in the bottom of the atrium just above the ventricles
Explanation:
AV node -
It helps to control the heart rate , it serves as an electrical relay station , reduces the electrical current which is sent by the SA node .
The location of the AV node , is at the lower back section of the inter atrial septum , and conducts the electrical impulse normally from the atria to ventricles .