1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PolarNik [594]
3 years ago
14

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

lues: the density of muscle is 1.08 g/cm3; the length of the capillaries is 500 μm and their cross-sectional density is 250 capillaries/mm2. Their average radius is 4 μm. Pressure at the arteriolar end of the capillary is 40 mm Hg and it decays linearly to 15 mm Hg at the venule end. The oncotic pressure of plasma is 25 mm Hg. Interstitial fluid pressure in relaxed muscle is -1 mm Hg and intersitial fluid oncotic pressure is 5 mm Hg
a. Calculate the surface area of the capillaries per 100 g of muscle. (Hint: calculate the mass of muscle 250 mm2 in cross-section and 500 um long)
b. Does the capillary filter fluid along its entire length, or does it reabsorb fluid at the venule end? Support your answer with calculations based on the givern information.
Medicine
1 answer:
algol [13]3 years ago
3 0

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

You might be interested in
Using the word medicine write eight words but the words each word has to start with a letter of medicine and when you read each
a_sh-v [17]

Explanation:

Medicines help us live longer and healthier. But, taking them the wrong way or mixing certain drugs can be dangerous. You need to be careful to keep track of your medicines and use them safely.

5 0
2 years ago
Read 2 more answers
a nurse provides morning care for a client in the intensive care unit (icu). suddenly, the bedside monitor shows ventricular fib
bazaltina [42]

A nurse provides morning care for a client in the intensive care unit (icu). suddenly, the bedside monitor shows ventricular fibrillation and the client becomes unresponsive<u>" Your atrial chambers may contain blood clots now, so you must take an anticoagulant for a few weeks before the cardioversion."</u>

Ventricular fibrillation is a type of abnormal coronary heart rhythm (arrhythmia). in the course of ventricular fibrillation, the lower heart chambers contract in a totally rapid and uncoordinated manner. As a result, the coronary heart would not pump blood to the relaxation of the frame.

Atrial fibrillation and ventricular traumatic inflammation are each sorts of irregular heartbeats (arrhythmias). Atrial fibrillation (AFib) affects the 2 top chambers of your heart. Ventricular traumatic inflammation (VFib) influences the 2 lower chambers of the coronary heart.

V-fib maximum generally occurs all through an acute heart assault or shortly thereafter. when coronary heart muscle does now not get enough blood glide, it is able to emerge as electrically unstable and reason risky heart rhythms. A coronary heart that has been broken by way of a coronary heart assault or other coronary heart muscle damage is at risk of V-fib.

Learn more about  ventricular fibrillation here:

brainly.com/question/15160746

#SPJ4

6 0
1 year ago
A client with a diagnosis of end-stage renal disease received a kidney transplant 2 years ago that was deemed a success. During
Mumz [18]

Answer:

"I'm feeling a bit under the weather these days and I'm a bit feverish."

Explanation:

Clients who are taking immunosuppressants after a transplant are susceptible to infections, which require prompt treatment. Concentrated urine is not a sign of a problem and persistent scarring is inconsequential. Minor changes to diet should be assessed, but are not necessarily contraindicated.

7 0
2 years ago
All of the following characteristics are found in all herpes viruses, except?
musickatia [10]

Answer:

D. they are all primarily acquired in childhood

6 0
3 years ago
Which of the following body systems provides the body the body with the exchange of oxygen and carbon dioxide
Debora [2.8K]

Answer:

I believe it would be the respiratory system.

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • The portion of the kidney that extends between the renal pyramids is called?
    6·1 answer
  • A pharmacy technician can answer a patient's prescription-related questions pertaining to
    14·2 answers
  • The antibody active in agglutination or clumping of antigens is.
    6·1 answer
  • A 76-year-old woman with emphysema presents with respiratory distress that has worsened progressively over the past 2 days. She
    11·1 answer
  • As carbon dioxide enters systemic blood, it causes more oxygen to dissociate from hemoglobin (the Haldane effect), which in turn
    9·1 answer
  • What is the proffesion of feet
    8·1 answer
  • Which of the following is true of the newborn states of arousal?
    12·1 answer
  • Mark’s doctor found that he had severe plaque buildup inside his arteries. What procedure would Mark’s doctor recommend to treat
    10·1 answer
  • MAY SOMEONE PLZ HELP ME ILL GIVE BRAINLEST :(((
    10·1 answer
  • a client is started on trimethoprim and sulfamethoxazole for a urinary tract infection. the client reports nausea, anorexia, and
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!