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:
I hope my answer helped you
Answer:
The correct option is: b. False
Explanation:
The ductus venosus is one of the three shunts of the fetal circulatory system. It is responsible for providing highly oxygenated blood to the inferior vena cava, followed by the right atrium of the fetal heart. Therefore, the main role of this shunt is to bypass the non-functioning liver of the fetus.
The 59-year-old client has peptic ulcer disease and is started on sucralfate.t is this an appropriate nursing diagnosis related to this medication Impaired bowel elimination: constipation.
The most commonplace reasons for peptic ulcers are infection with the bacterium Helicobacter pylori (H. pylori) and long-time period use of nonsteroidal ills (NSAIDs) inclusive of ibuprofen (Advil, Motrin IB, others) and naproxen sodium (Aleve). stress and spicy foods no longer cause peptic ulcers.
Peptic ulcers occur while acid in the digestive tract eats away on the internal floor of the stomach or small intestine. The acid can create a painful open sore which could bleed. Your digestive tract is lined with a mucous layer that normally protects against acid.
The maximum not unusual causes of peptic ulcers are infection with the bacterium Helicobacter pylori (H. pylori) and lengthy-term use of nonsteroidal drugs (NSAIDs) consisting of ibuprofen (Advil, Motrin IB, others) and naproxen sodium (Aleve). pressure and spicy foods do not cause peptic ulcers.
Learn more about peptic ulcers here:
brainly.com/question/11736884
#SPJ4
Answer:
The answer to the question: There are neurotransmitters that can be both excitatory and inhibitory. Explain how this is possible, would be, Yes, there are some neurotransmitters such as acetylcholine and dopamine, who have both an excitatory and inhibitory effect in other neurons and in cells, and this happens because of the type of receptors they bind to, and the type of cell where they bind.
Explanation:
Neurotransmitters are the messengers, or communication system that the nervous system in general has with itself and with other systems. There are several types of these, and some work both as neurotransmitters and as hormones as well. How they act, where they act, and what kind of response they elicit, depends entirely on the receptors to which they bind, when they are released by a pre-synaptic neuron. Most neurotransmitters are either excitatory, or inhibitory, and some are known as neuromodulators. However, there are two types known today that work as both excitatory and inhibitory: dopamine and acetylcholine. How can either of these act as each of these? Depends on the receptors present on the post-synaptic neuron, or cell, and depends on the type of cell as well. As soon as these two bind to their appropriate receptors, in a specific kind of cell, they will produce the specific response from the cell, either starting an action potential, ir inhibiting it from happening.
