Answer:
The correct option is: A. pulmonary circulation
Explanation:
The heart is muscular organ that is present in the central compartment of the thoracic cavity. It is responsible for pumping blood in the circulatory system through the blood vessels.
The right atrium of the heart pumps the deoxygenated blood received from the body into the right ventricle, which further pumps the received deoxygenated blood into pulmonary artery that carries the deoxygenated blood to the lungs.
The pulmonary veins then carries oxygenated blood from the lungs to the left heart. This is known as the Pulmonary circulation.
<u>Therefore, the right heart acts as a pump for the pulmonary circulation.</u>
Be patient and explain it in a way they will understand
Answer:
The correct answer will be:
1. Acetylcholine binds to receptors on the motor end plate
2. Chemically-regulated ion channels open, causing depolarization
3 End plate potentials trigger action potential(s).
4. Transverse tubules convey potentials into the interior of the cell
5. Ca++ is released from the sarcoplasmic reticulum
6. Ca++ binds to troponin, pulling on tropomyosin
7. Binding sites on actin are uncovered, allowing myosin to bind and carry out power strokes
8. Force increases.
9. Ca++ is pumped (re-sequestered) into the sarcoplasmic reticulum
10. Force decreases.
Explanation:
The muscle contraction is a highly controlled mechanism which begins at the neuromuscular junction with the release of the acetylcholine neurotransmitter. This neurotransmitter causes the depolarization of the membrane by binding to the receptors of the motor end plate which generates an action potential. This action potential is transmitted via T-tubules from sarcolemma to the sarcoplasmic reticulum.
The sarcoplasmic reticulum releases calcium ions which binds to the troponin protein. This troponin removes the protein tropomyosin from the actin causing the rotation of the tropomyosin exposing the binding sites for myosin. The myosin binds to the actin using energy from the ATP which pulls the actin causing contraction. Another ATP binds the myosin head which weakens the bond between myosin and actin which releases the myosin which decreases the force between them decreases and the muscles relax.
Answer: a. "Deployed DMAT providers are federal employees, so their licenses are good in all 50 states."
Explanation:
Disaster Medical Assistance Teams are teams consisting of professionals and para-professionals in the medical profession who are called upon during matters of National Emergency when medical personnel are needed to respond rapidly to save lives. They therefore deal with events such as terrorist attacks, natural or man-made disasters, disease outbreaks and the like.
They fall under the National Disaster Medical System which operates at a Federal level. As such, DMAT teams are by extension, Federal employees who are licensed to provide help in every state of the Republic so the nurse does not to be concerned about maintaining licensure in several different states.
Answer:
The answer is A promote an increase in blood pressure
Explanation:
Aldosterone is a mineralocorticoid hormone produced in the renal cortex and acts by retaining sodium and eliminating potassium which leads to an increase in blood pressure.
