Question

In: Anatomy and Physiology

1. The grapelike clusters of alveoli are called ___________. a. alveolar ducts b. alveolar membranes c....

1. The grapelike clusters of alveoli are called ___________.

a. alveolar ducts

b. alveolar membranes

c. alveolar capillaries

d. respiratory bronchioles

e. alveolar sacs

2. Contracting the diaphragm increases thoracic cavity __________ and decreases thoracic cavity ___________. This results in _________.

a. volume; pressure; inspiration

b. volume; pressure; expiration

c. pressure; volume; expiration

d. pressure; volume; inspiration

3. If your tidal volume is 500 mL and the conducting portion of your respiratory tract is 150 mL, how much air are you exchanging gases with from that breath?

a. Not enough information is given.

b. 500 mL

c. 350 mL

d. 650 mL

e. 150 mL

4. A drop in blood pressure stimulates the kidneys to secrete ___________.

a. angiotensin II

b. antidiuretic hormone

c. angiotensinogen

d. renin

e. aldosterone

Solutions

Expert Solution

1

e) Alveolar sacs

  • Alveoli are small air spaces in the lungs , where carbon dioxide leaves the blood where oxygen enters in it.
  • Alveoli forms clustors called alveolar sac, that resemble a bunch of grapes.
  • Alveolar duct are referred as the stem of grapes, in which it connect to the alveolar sac.Hence option A is wrong.
  • Option B is wrong because alveolar membrane is the membrane which helpin gas exchange.
  • Option C is wrong because alveolar capillaries are the blood vessel.
  • Option D is wrong , because respiratory bronchioles are the final divisions of bronchioles.

2

a) Volume, pressure , Inspiration

  • Contraction of diaphragm causes increase in the internal height of thoracic cavity , thus lowering its internal pressure and causing inspiration of air.
  • Relaxation of diaphragm and elasticity of lung tissue produce expiration.
  • All other options are wrong , due to incorrect format.

3

c) 350 mL

  • Dead space is the volume of air that is inhaled and doesnot take part in gas exchange.
  • Tidal volume is the volume of air displaced between normal inhalation and exhalation, when extra effort is not applied.
  • Tidal volume= dead space + Alveolar volume ( volume of air , that take part in gas exchange)

500-150  

Alveolar volume = 350 mL

  • All other options are wrong, due to incorrect values.

4

d) renin

  • Glomerulus , a bundle of capillary vessel found in kidney will senses a drop in blood flow or pressure and secrete an enzyme called renin.
  • This enzyme partcipates in renin - angiotensin -aldosterone -system.(RAAS)
  • Option A and C is wrong because angiotensin II and angiotensin is also hormone which play a role in RAAS mechanism, but renin stimulates these hormone.
  • antidiuretic hormone help in reabsorption of water , hence option B is wrong.
  • Aldosterone help in sodium reabsorption hence option E is wrong.

Related Solutions

Questions Respiratory II A decrease in the availability of oxygen Alveolar ducts Amount of air remaining...
Questions Respiratory II A decrease in the availability of oxygen Alveolar ducts Amount of air remaining in the lungs after the most powerful exhalation Alveoli An absence of oxygen Anoxia Branches emerging from the respiratory bronchioles Apnea Combination of carbon dioxide and hemoglobin Bicarbonate Each gas in a mixture of gases define which law Boyles Fast and rapid breathing Carbaminohemoglobin Functional unit of respiration Carbon dioxide Increase in carbon dioxide Daltons Initial branches off of he trachea Diaphragm Labored breathing...
Along a stretch of beach are 500 children of 100 each (Labeled in clusters A,B,C,D,E, in...
Along a stretch of beach are 500 children of 100 each (Labeled in clusters A,B,C,D,E, in that order.) Two ice-cream vendors are deciding simultaneously where to locate. They must choose the exact location of one of the clusters. If there is a vendor in a cluster, all 100 children will buy an ice-cream. For clusters without a vendor, 50 out of the 100 children are willing to walk to a vendor one cluster away, only 20 are willing to walk...
Three positive integers (a, b, c) with a<b<c are called a Pythagorean triple if the sum...
Three positive integers (a, b, c) with a<b<c are called a Pythagorean triple if the sum of the square of a and the square of b is equal to the square of c. Write a program that prints all Pythagorean triples (one in a line) with a, b, and c all smaller than 1000, as well the total number of such triples in the end. Arrays are not allowed to appear in your code. Hint: user nested loops (Can you...
Questions Respiratory I excessive carbon dioxide in the blood is called Alveoli Excessive stretching of the...
Questions Respiratory I excessive carbon dioxide in the blood is called Alveoli Excessive stretching of the lungs is accomplished through which reflexive action Apnea Inadequate oxygen delivery to the cells is called Carbonic anhydrase labored breathing is called Cardiac notch Nasal hairs are also called Compliance sustained absence of breathing is called Dyspnea The actual site of gas exchange occurs at the level of Expiratory reserve The amount of air that can be exhaled from the lung above tidal expiration...
a+b+c=(abc)^(1/2) show that (a(b+c))^(1/2)+(b(c+a))^(1/2)+(c(a+b))^(1/2)>36
a+b+c=(abc)^(1/2) show that (a(b+c))^(1/2)+(b(c+a))^(1/2)+(c(a+b))^(1/2)>36
1. The development of internal male reproductive structures such as the sperm ducts and prostate gland...
1. The development of internal male reproductive structures such as the sperm ducts and prostate gland are an important role of___the primary androgen. 2. Observational studies have shown that___vitamin D is associated with a___risk of nonskeletal diseases. low; lower, high: greater, There is no link between vitamin D and nonskeletal diseases, orl ow; greater? 3. Lipids are nutrients required by the body in large quantities Therefore, lipids are called a _____. 4. A genetic mutation has altered the shape of...
1. Outline the lymphatic vasculature beginning with the capillaries and ending at the ducts. Describe each...
1. Outline the lymphatic vasculature beginning with the capillaries and ending at the ducts. Describe each type of vessels.
1- what is the effect of water vapor on the air entering the alveoli?
1- what is the effect of water vapor on the air entering the alveoli?
1. When stating that "A=B and B=C, then A=C" the _______ of the thermodynamics. A. First...
1. When stating that "A=B and B=C, then A=C" the _______ of the thermodynamics. A. First B. Second C. Third D. Zeroth 2. "It is impossible for a process to have as it sole result the transfer of heat from a cooler body to a hotter one." This statement represents the _____ Law of Thermodynamics. A. First B. Second C. Third D. Zeroth 3."It is impossible to reduce any system to absolute zero in a series of      operations. This...
QUESTION 41 Sperm is delivered through the body by a system of ducts: 1. Epididymis 2....
QUESTION 41 Sperm is delivered through the body by a system of ducts: 1. Epididymis 2. __________ 3. Ejaculatory Duct 4. Urethra A. Seminal Gland B. Spermatic Cord C. Ductus Deferens D. Prostate QUESTION 42 The site where fertilization usually occurs? A. Ampulla B. Fimbriae C. Infudibulum D. Isthmus QUESTION 43 Water, Na+, amino acid, and glucose are reabsorbed back into the peritubular capillaries. True False QUESTION 44 What is the bulky middle layer consisting of interlacing layers of smooth...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT