« previous next »

Author Question: Which type of pressure is necessary within the thorax to maintain normal inhalation and expiration? ... (Read 120 times)

khang

  • Hero Member
  • *****
  • Posts: 569
on: Jul 18, 2018
Which type of pressure is necessary within the thorax to maintain normal inhalation and expiration?
 
  a. Negative
  b. Positive
  c. Internal
  d. Blunt

Question 2

Which ribs have no fixation anteriorly?
 
  a. 5th, 6th, and 7th ribs
  b. 7th and 8th ribs
  c. 8th, 9th, and 10th ribs
  d. 11th and 12th ribs


kswal303

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 18, 2018
Answer to Question 1

ANS: A
Negative, or subatmospheric, pressure is needed to avoid pressure changes that can be caused by openings in the thoracic wall. An uncontrolled opening in the thoracic wall can cause pressure change and be fatal.

Answer to Question 2

ANS: D
Although ribs 3 through 7 articulate with the main sternal body, and the 8th through 10th ribs join anteriorly to the above ribs' cartilage, the 11th and 12th ribs have no anterior fixation.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Guidelines for proper blood pressure cuff size Guidelines for proper blood pressure cuff size
A blow-off valve is used in some turbocharged systems to relieve boost pressure during ... A blow-off valve is used in some turbocharged systems to relieve boost pressure during ...
To measure engine oil pressure, remove the oil pressure sending (sender) unit usually located near ... To measure engine oil pressure, remove the oil pressure sending (sender) unit usually located near ...
The fuel tank pressure sensor (black unit with three wires) looks like a MAP sensor and is usually ... The fuel tank pressure sensor (black unit with three wires) looks like a MAP sensor and is usually ...
Endangerment sites of the head and face. Use only light to moderate pressure on head and face. Endangerment sites of the head and face. Use only light to moderate pressure on head and face.
Turn head for access to suboccipital muscles and locate TrPs. Use fingers or thumb to apply pressure ... Turn head for access to suboccipital muscles and locate TrPs. Use fingers or thumb to apply pressure ...
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

For a complete list of videos, visit our video library