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Anatomy > Bio 26 Unit 2 Lecture exam previous quizzes > Flashcards

Bio 26 Unit 2 Lecture exam previous quizzes Flashcards

1
Q

The lymph from the left leg re-enters the blood stream which subclavian vein?

A

left subclavian vein

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2
Q

Lymphatic trunks lead to ___________.

A

ducts

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3
Q

Lymphocytes that reach the thymus become _____.

A

T cells

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4
Q

Which of the following would NOT be classified as a lymphoid organ?

  • Tonsils
  • Pancreas
  • Peyer’s patches of the intestine
  • Spleen
A

Pancreas

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5
Q

The lymphatic capillaries are more or less permeable than blood capillaries?

A

more permeable than blood capillaries

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6
Q

Lymph leaves a lymph node via ________.

A

efferent lymphatic vessels

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7
Q

When the lymphatic structures of a limb are blocked due to tumors, the result is ________.

A

severe localized edema distal to the blockage of that limb

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8
Q

Flow of lymph through a lymph node is slowed due to ________.

A

fewer efferent vessels draining it compared to many afferent vessels feeding it

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9
Q

Which of the following statements is FALSE regarding the spleen?

  • The spleen is the largest lymphoid organ.
  • The splenic artery and vein enter and exit the spleen at the hilum.
  • Clusters of white pulp look like islands in a sea of red pulp.
  • Red pulp is where immune functions take place.
A

Red pulp is where immune function takes place is false

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10
Q

Although B and T lymphocytes originate in the bone marrow, T cells mature in the ________.

A

Thymus

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11
Q

Vaccinations are an example of __________

A

Artificially-acquired active immunity

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12
Q

If a cell has a foreign antigen attached to its Class II MHC protein, that is a signal that can be interpreted as which one of the following statements?

A

“I am an immune cell”

“This antigen is dangerous- get rid of it!”

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13
Q

Which of the following is the typical site of T and B cell activation?

  • –Red Marrow
  • – Thymus
  • – Lymph nodes
    • –liver
A

Lymph Nodes

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14
Q

Antigen Presenting Cell (APC) function by

A

engulfing an antigen then displaying a fragment outside the membrane and activating T cells

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15
Q

Which of the following is true if you are exposed to an antigen for the 2nd time?

-Your immune response is stronger and faster

  • It takes longer for your immune system to respond
    Your immune system has a weaker response
  • Your immune response would be the same as the first exposure
A

Your immune response is stronger and faster

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16
Q

If Clare has no T-helper cells, she would have _______ cell immunity.

A

Impaired cell-mediated immunity and

Impaired humoral immunity

17
Q

Which of the following is the typical site of T cell maturation?

  • Red marrow
  • Thymus
  • Lymph nodes
    • liver
A

Thymus

18
Q

Immunity gained after being sick is an example of:

  • Naturally-acquired active immunity
  • Artificially-acquired active immunity
  • Naturally-acquired passive immunity
  • Artificially-acquired passive immunity
A

Naturally-acquired active immunity

19
Q

When a lymphocyte has matured and does not attack cells of the body, it is said to have developed:

A

Self tolerance

20
Q 
The formation of an antigen-antibody complex can lead to: 
I - Agglutination 
II - Neutralization 
III - Transformation
IV - Activation of complement
A

I, II, IV

21
Q

Air moves out of the lungs when the pressure inside the lungs is ________.

A

greater than the pressure in the atmosphere

22
Q

Unlike inspiration, expiration is a passive act because no muscular contractions are involved. Expiration, however, depends on two factors. (aka. which two factors make the lungs want to collapse?)

A

the recoil of elastic fibers that were stretched during inspiration and the inward pull of surface tension due to the film of alveolar fluid

23
Q

Tidal volume is air ________.

A

Exchanged after normal breathing

24
Q

The larynx contains ________

A

the thyroid cartilage

25
Q

Which of the choices below is not a role of the pleura?

  • allows the lungs to inflate and deflate without friction
  • helps divide the thoracic cavity into three chambers
  • aids in blood flow to and from the heart because the heart sits between the lungs
  • provides surface tension to assist in expansion
A

aids in blood flow to and from the heart because the heart sits between the lungs

26
Q

Exchange of gases occurs here:

A

Alveoli

27
Q

Secrete a fluid containing surfactant

A

Type II cells

28
Q

Where the respiratory zone of the lungs begins:

A

Respiratory Bronchioles

29
Q

Terminates in alveoli:

A

Alveolar Duct

Anatomy (17 decks)

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