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Biology > Practice Exam 3 > Flashcards

Practice Exam 3 Flashcards

0
Q

What is the liquid portion of blood?

A

Plasma

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1
Q

Which of the following is a function of blood?

  • defense
  • regulation of pH
  • transportation
  • stabilization of body temperature
  • all of the above
A

All of the above

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2
Q

Which of the following proteins is not found in blood?

  • collagen
  • fibrinogen
  • albumins
  • globulins
A

Collagen

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3
Q

An increase in the number of ___ in the blood may specifically indicate the presence of parasitic worms.

A

Eosinophils

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4
Q

Microorganisms that invade the body may be ingested by phagocytosis and destroy my certain types of?

A

White blood cells

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5
Q

Oxygen is primarily transported in the blood by?

A

Red blood cells

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6
Q

What is the metal ion in the center of the heme unit of the hemoglobin molecule?

A

Iron

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7
Q

Which of the following will stimulate the production of more red blood cells?

  • albumin
  • erythropoietin
  • fibrinogen
  • rh factor
A

Erythropoietin

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8
Q

What specifically determines the blood type of a person?

A

Antigens on the surface of red blood cells

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9
Q

A person with blood type AB can receive blood of which type?

A

AB and O

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10
Q

When does an Rh negative person make anti Rh antibodies?

A

Rh negative people make anti Rh antibodies after their first exposure to Rh positive blood

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11
Q

Assume that an Rh negative mother has, after her first pregnancy, given birth to an RH positive baby and was not given RhoGAM. When might hemolytic disease of the newborn occur?

A

During fetal development of the next Rh positive baby

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12
Q

What is the last step of the formation of the blood clot (coagulation)?

A

Thrombin converts fibrinogen to fibrin

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13
Q 
Which of the following is not part of the cardiovascular system? 
A blood
B heart 
C lungs 
D arteries 
E arteries
A

Lungs

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14
Q

What is the smallest type of blood vessel?

A

Capillary

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15
Q

The main function of valves within the cardiovascular system is to?

A

Prevent blood from moving into the wrong direction

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16
Q

The function of the papillary muscles and chordae tendineae is to?

A

Preevent the heart valves from opening the wrong way or turning inside out under pressure

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17
Q

The heart is considered to be a double pump because?

A

The right side of the heart pumps blood to one circuit, and the left side of the heart pumps blood to a different circuit

18
Q

Heart sounds “Lub-dup” occur specifically as a result of the?

A

Closing of the heart valves

19
Q

What provides nutrients and oxygen to the heart muscle itself

A

Circulation from the coronary vessels

20
Q

The pacemaker of the heart is the?

A

SA node

21
Q

Him and electrocardiograph, the QRS wave results from?

A

The electrical impulse spreading through the ventricles

22
Q

Normal blood pressure is considered to be 120/80. What does the 120 represent?

A

The normal systolic blood pressure

23
Q

Why is atherosclerosis a big problem when it’s found in the coronary arteries?

A

It can resist blood flow to the heart muscle.
It can cause a heart attack.
It is, by definition, coronary artery disease.

24
Q

The functions of the lymphatic system include?

A

Returning excess interstitial fluid to the bloodstream

25
Q

In which of the following locations would you be most likely to find lymph nodes ?

A

Armpits

26
Q

What is the main function of the respiratory system?

A

To provide the body with oxygen and dispose of carbon dioxide

27
Q

Which of the following is the correct sequence of air flow during inhalation?

A

Nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles

28
Q

If someone had an upper respiratory infection, where might it be located?

A

Pharynx

29
Q

After working outdoors in the garden, you come indoors and blow your nose to find dirt in the mucus. what specific nasal cavity function is this evidence of?

A

Filtering the incoming air

30
Q

Which of the following is found in the nasopharynx?

A

Auditory (Eustachian ) tube openings

31
Q

What prevents food and drink from going down the trachea out when you swallow?

A

Epiglottis

32
Q

What is it called when the vocal cords are swollen and thick due to inflammation?

A

Laryngitis

33
Q

Which of the following scenarios would produce sound with the highest pitch?

A

Think vocal chords with a lot of tension on them

34
Q

Contraction of the external intercostal muscles and diaphragm cause the thoracic cavity to_____, thus causing the air pressure within the lungs to_____

A

Expand , decrease

35
Q

Which of the following normally a cures passively ( i.e. requires no energy input)?

  • quiet inhalation
  • forced deep inhalation
  • quiet exhalation
  • forced exhalation
A

Quiet exhalation

36
Q

The amount of air that enters and leaves the lungs during normal, quite breathing is called the?

A

Tidal volume

37
Q

Internal respiration occurs

A

Between the blood and the systemic tissues

38
Q

Nearly all of the oxygen in the blood is carried as?

A

Oxyhemoglobin

39
Q

Which gas is carried in the blood mostly by bicarbonate ions?

A

Carbon dioxide

40
Q

The breathing center, which regulates breathing rate in response to changes in carbon dioxide and oxygen levels in the blood,?

A

Is located in the medulla oblongata of the brainstem

41
Q

The rate of breathing is primarily affected by?

A

Concentration of carbon dioxide in the blood

42
Q

Which of the following is a chronic respiratory disorder that results in the permanent breakdown of alveolar walls, decreased lung elasticity, and a barrel chest

A

Emphysema

Biology (13 decks)

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