Which of the following is/are activated by an increase in mean arterial pressure (MAP) to 120 mmHg? a. Myogenic autoregulation only
b. Tubuloglomerular feedback only
c. Both myogenic autoregulation and tubuloglomerular feedback
d. Neither myogenic autoregulation or tubuloglomerular feedback

Answers

Answer 1

Answer:

Answer:

Both myogenic autoregulation and tubuloglomerular feedback are activated by an increase in mean arterial pressure (MAP) to 120 mmHg?

Explanation:

Mean arterial pressure is the average blood pressure an individual has during a single cardiac cycle. It is considered normal when it is between 65 to 110 mmHg.

When there is an increase in MAP to 120 mmHg then the myogenic autoregulation helps in protecting the glomerular capillaries against the rapid elevation during arterial pressure. Whereas, tubuloglomerular feedback is involved in controlling the RBF and GFR has a response to sustained reduction MAP.

Answer 2

Answer:

When there is an increase in mean arterial pressure (MAP) to 120 mmHg, both myogenic autoregulation and tubuloglomerular feedback are activated.

Explanation:

Myogenic autoregulation is the reflexive action which constricts the stretched smooth muscles in the blood vessels like arteries and arterioles when there is an increase in MAP.

Tubuloglomerular feedback is a mechanism which corrects the glomerular filtration rate based on the salt concentration in the renal tubules.

Both myogenic autoregulation (of preglomerular arterioles) and tubuloglomerular feedback (TGF) are the homeostatic mechanism used for autoregulation of renal blood flow (ARBF) and prevent renal arterial pressure elevation.

ARBF takes place which constricts the renal arterioles according to their salt content. TGF then acts along with myogenic autoregulation to control the elevation of MAP and renal arterial blood flow.

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According to the escience lab manual for lab 1, experiment 3, you need to prepare a 47 mL of a 24% soda/syrup prescription. To do this, you can use the 80% syrup solution and the 10% soda solution that you have in stock. How many mLs of soda solution do you need to create this final solution?

Answers

Answer:

33 mL

Explanation:

It is important to recognize that the total amount of pure syrup remains constant:

Total syrup in the stock solution = total syrup in dilute solution

Thus, we can use the dilution formula

V₁c₁ = V₂c₂

Data:

V₁ = ?; c₁ = 80 %

V₂ = 47 mL; c₂ = 24 %

Calculations:

1. The volume of stock syrup

$\begin{array}{rcl}V_(1)c_(1) & = & V_(2)c_(2)\nV_(1)*80 \, \% & = & \text{47 mL}* 24 \, \%\n80V_(1) & = & \text{1130 mL}\nV_(2)&=& \frac{\text{1130 mL}}{80}\n\n&=&\text{14 mL}\n\end{array}\n\text{You need $\textbf{14 mL}$ of stock syrup.}$

2. The volume of soda solution

Total volume of dilute solution = 47 mL

The volume of stock syrup = 14

Volume of soda solution = 33 mL

You need 33 mL of soda solution.

Fill out the blanks (2pts)Superior Vena Cava -> _________________ -> Right Ventricle -> Pulmonary Artery -> ______________ -> Left Atrium -> ________________ -> _______________ -> Rest of Body

Answers

Answer:

Superior Vena Cava -> Right Atrium -> Right Ventricle -> Pulmonary Artery -> Lungs -> Left Atrium -> Left Ventricle -> Aorta -> Rest of Body

Answer:

Superior Vena Cava -> Right Atrium -> Right Ventricle -> Pulmonary Artery -> Lungs -> Left Atrium -> Left Ventricle -> Aorta -> Rest of Body is correct!

Which of the following restorations is the strongesti? A. Veneer
B. Composite
C. Amalgam
D. Plastic

Answers

Answer:

The correct answer is option C. Amalgam restoration.

Explanation:

Amalgam is the material that uses in the restoration of the teeth. For a long period of time amalgam is the first choice of dentists for restoration. Amalgam consist of the silver tin alloy reacted with the liquid mercury that results in strong silver-gray material.

Amalgam is most common as it is strong than other materials used for restoration. These are durable and cost-effective too.

Thus, the correct answer is option c. Amalgam.

Durning the extern course, the student is scheduled to work unpaid in a physician office, clinic, or possibly a hospital setting under the direct supervision of preceptor or supervisor. What is another term for this experience?

Answers

Answer:

you are expected to tell the patient you are working on that you are a medical student

Explanation:

i am studing to be a doctor and i know a lot of stuff

Assume that an initial dose of 100 mg will produce a particular drug effect. After tolerance, which dose level would most likely produce an equivalent response?

Answers

Answer:

Tolerance means that due to repititve use of the drug, initial dose is unable to prpduce the same effect beacuse the receptors has been desensitized.

If An initial dose is 100 mg then dose higher than this which may be 2 or 3 times more potent may reverse this tolerance of the drug and it may then produce similar effects at a higher dose.

Explanation:

Tolerance is said to be the decreased response by the drug because of the continuous exposure to the drug at the receptor molecules. Due to this contionuous exposure the receptors become desensitized.

Tolerance occurs when the person no longer responds to the drug in the way that person initially responded. Tolerance can be reversed by increasing the dose of the drug lets say initial dose was 100 mg. To reverse the tolerance, a dose of 500 mg may be required or even more.

The cells within a gland are considered: a. Muscle tissue
b. Nervous tissue
c. Epithelial tissue
d. Connective tissue