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3 years ago

Question 60 (5 points)

Medicine

1 answer:

shusha [124]3 years ago

5 0

Answer:

C) 30 minutes

Explanation:

The PAG (physical activity guidelines) recommends at least 30 minutes of physical activity in a daily basis.

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The net filtration across relaxed skeletal muscle capillaries is about 0.005 mL/min per 100 g of tissue. Assume the following va

algol [13]

Answer:

0.58 m²/100 g

Explanation:

Let us consider a chunk of muscle with a cross-sectional area of 1 mm² and which 500m long. If this chunk contain 250 capillaries and each with 4m radius long .

Now if we calculate the muscle slab weight along with the surface area of capillaries in the muscles. To calculate the surface area per unit weight of muscle we will neee to divide the surface area of capillaries that are there in the muscle to the area by the mass of the muscle long.

This slab of muscle contains 250 capillaries with a radius of 4m each. We calculate how much this muscle slab weighs,

how much surface area of capillaries there are in the muscle,

and then we will divide the area by the mass of the muscle to find the surface area per unit weight of muscle

The volume of the piece of muscle is;

=1 mm² x 500 x 10⁻⁶ m

= 1 mm² x 0.5 mm

= 0.5 mm³

Now since 1cm = 1000mm

Therefore, the volume will be equal to

= 0.5 x 10⁻³ cm³

And its mass is 0.5 x 10 ⁻³ cm³ x 1.08 g cm⁻³

= 0.54 x 10⁻³ g

surface area of a single capillary is = 2B × r × l

where;

r = radius, l = length

∴ surface area = 2 B x 4 x 10⁻⁶ m x 500 x 10⁻⁶ m

= 12566 x 10⁻¹² m²

Now for 250 capillaries the total surface area is 250 x 12566 x 10⁻¹² m²

= 3141500 x 10⁻¹² m² in a mass of muscle that weighs 0.54 x 10⁻³ g.

So the surface area of capillaries is 3.1415 x 10⁻⁶ m²/ 0.54 x 10⁻³ g

= 5.818 x 10⁻³ m² g⁻¹ x 1 g /100 g

= 0.58 m²/100 g

3 0

3 years ago

Jane is an 8-year-old girl that weighs 56.5 pounds (25.6 kg), is 51 inches tall, and enjoys lots of outdoor activities. Her tota

Oduvanchick [21]

Answer:

Dairy fat is lacking in her food

Explanation:

The average intake of calories for a child of 8 year must not be less than 1200 calories per day. Thus, Jane is getting sufficient calories. She is taking 80 grams of fat which is also sufficient. However, she lacks fats from dairy product such as milk. It is considered that a child of age 8 years must take at least 2 cups of milk or its equivalent each day.

Jane is taking sufficient carbohydrates intake as she is take 225 grams carbs everyday against the set standard of 130 grams per day.

4 0

3 years ago

Kyle is 30 years old, weighs 125 pounds, and is 72 inches tall. Use the formula and chart below, as well as a calculator, to eva

Bezzdna [24]

The given question lacks the important part of the question required to answer it, however, the complete question is as follows:

Kyle is 30 years old, weighs 125 pounds, and is 72 inches tall.

Use the formula and chart below, as well as a calculator, to evaluate his weight, and then answer the question.

BMI = Weight (in pounds) ÷ [Height (in inches)]² x 703

BMI categories, general

Underweight: less than 18.5

Normal weight: 18.5-24.9

Overweight: 25-29.9

Obese: 30 or greater

Given Kyle's BMI, which statement is most likely true of Kyle's health risks?

a.high risk of diabetes and kidney disease

b. possible risk of malnutrition

c. no risk based on weight

Answer:

The correct answer is : option B. possible risk of malnutrition

Explanation:

Given:

age : 30

weight : 125 lbs

height: 72 inches

formula:

BMI = Weight (in pounds) ÷ [Height (in inches)]² x 703

solution :

by the formula, BMI of Kyle would be:

BMI = Weight (in pounds) ÷ [Height (in inches)] ² x 703.

=125/5184 x 703 = 16.95

Comparing BMI with the given chart suggests 16.95 is underweight and probablely cause due to the malnutrition or may be cause to malnutrition as underweight is breeding ground for malnutrition problems.

Thus, the correct answer is : option B.

8 0

4 years ago

Contact a health care professional and arrange to conduct an interview. Use the interview to understand the ethical perspective

Leokris [45]

Answer:

idk can you teach me

Explanation:

3 0

3 years ago

How is Bystolic different from other beta-blockers?

Xelga [282]

Answer:

Bystolic (nebivolol) belongs to a group of drugs called beta-blockers. Beta-blockers affect the heart and circulation (blood flow through arteries and veins). Bystolic is used to treat hypertension (high blood pressure). Lowering blood pressure may lower your risk of a stroke or heart attack.

7 0

3 years ago