Chapter 1 Flashcards

1
Q

What are anatomy and physiology?

A

Anatomy and Physiology (A & P) are about human structure and function—the biology of the human body​

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2
Q

what are the four ways of examining structure of the human body?

A
  • Inspection​
  • Palpation​
  • Auscultation​
  • Percussion
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3
Q

Describe Inspection.

A

Visual Examination of the body or looking at the body

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4
Q

Describe Palpation.

A

Feeling the body with fingers or hands

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5
Q

Describe Auscultation.

A

Listening to sounds, usually with a stethoscope

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6
Q

Describe Percussion.

A

Producing sounds, usually by tapping on specific areas of the body

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7
Q

What are some ways of studying human anatomy.​

A
  • Medical Imaging (Radiology)
  • Gross Anatomy
  • Histology
  • Histopathy
  • Cytology
  • Ultrastructure
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8
Q

Describe gross anatomy?

A

Study of structures that can be seen with the naked eye​

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9
Q

Describe Histopathology?

A

Microscopic examination of tissues for signs of disease​

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10
Q

Describe Cytology.

A

Study of structure and function of cells​

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11
Q

Describe Ultrastructure

A

View detail under electron microscope​

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12
Q

What are some subdisciplines of Anatomy and Physiology?

A
  • Neurophysiology (physiology of nervous system)​
  • Endocrinology (physiology of hormones)​
  • Pathophysiology (mechanisms of disease)​
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13
Q

Describe Neurophysiology?

A

Physiology of nervous system

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14
Q

Describe Endocrinology

A

Physiology of hormones

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15
Q

Describe Pathophysiology.

A

Mechanisms of disease

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16
Q

Describe comparative physiology.

A

Study of different species to learn about body functions ​(comparing and contrasting)

  • Basis for much of our understanding of human physiology and the development of new drugs and medical procedures​
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17
Q

What is a Scientific Fact.

A

Information that can be independently verified​

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18
Q

Describe the Law of Nature.

A
  1. Generalization about the way matter and energy behave ​
  2. Results from inductive reasoning and repeated observations​
  3. Written as verbal statement or mathematical formula​
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19
Q

Describe Theory.

A

An explanatory statement or set of statements derived from facts, laws, and confirmed hypotheses​

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20
Q

Who is Charles Darwin?

A

He is primarily known as the architect of the theory of evolution by natural selection.

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21
Q

Describe Evolution?

A

Change in genetic composition of population of organisms; Example: development of bacterial resistance to antibiotics​

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22
Q

Describe how evolution works.

A

Through Natural Selection

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23
Q

How does Natural Selection occur?

A
  1. Selective pressures
  2. Adaptations
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24
Q

Describe how Adaptations promote evolution.

A

Adaptations are inherited features of anatomy and physiology that evolved in response to pressures and that enable organism to succeed; example: better camouflage​

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25
Q

Describe how selective pressures promote evolution.

A

Selection pressures are forces that promote reproductive success of some individuals more than others; example: predators​

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26
Q

Considering the hierarchy of complexity of life, which of the following levels is the most complex?

A

Organisms

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27
Q

Considering the hierarchy of complexity of life, which of the following levels is the least complex?

A

Subatomic particles

28
Q

Organism composed of:

A

Organ systems

29
Q

Organ systems composed of:

A

Organs

30
Q

Organs composed of:

A

Tissues

31
Q

Tissues composed of:

A

Cells

32
Q

Cells composed of:

A

Organelles

33
Q

Organelles composed of:

A

Molecules

34
Q

Molecules composed of:

A

Atoms

35
Q

Describe reductionism.

A

States that large, complex systems can be understood by studying their simpler components

36
Q

Describe Holism.

A

States that “emergent properties” of the whole organism cannot be predicted from the properties of the separate parts.

37
Q

What are some ways to characterize life?

A
  1. Organization
  2. Cellular composition
  3. Metabolism
  4. Responsiveness
  5. Movement
  6. Homeostasis
  7. Development
  8. Reproduction
  9. Evolution
38
Q

In terms of Metabolism, living things exhibit:

A

Internal Chemical Reactions

39
Q

In terms of responsiveness, living things have the ability:

A

Ability to sense and react to stimuli
(irritability or excitability)

40
Q

In terms of organization, living things exhibit:

A

Living things exhibit a higher level of organization than nonliving things

41
Q

In terms of Cellular composition, living matter is always:

A

Always compartmentalized into one or more cells

42
Q

Living things exhibit homeostasis by:

A

maintaining relatively stable internal
conditions

43
Q

Living things exhibit development by:

A

differentiation and growth

44
Q

Reproduction in living things involves:

A

Producing copies of themselves; passing
genes to offspring

45
Q

Evolution in living things involves:

A

changes in genes

46
Q

Physiological Variations include:

A

Sex, age, diet, weight, physical activity, genetics and environment

47
Q

Describe Homeostasis.

A

The ability to detect change, activate mechanisms that oppose it, and thereby maintain relatively stable internal conditions

48
Q

Negative feedback allows for:

A

Allows for dynamic equilibrium within a limited range around a set point. (The body senses a change and “negates” or reverses it)

49
Q

Loss of homeostatic control causes

A

illness or death

50
Q

Because feedback mechanisms alter the original changes that triggered them, they are called:

A

Feedback loops

51
Q

Homeostasis in body temperature: If too warm:

A

Vessels dilate in the skin and sweating begins (heat-losing mechanism)

52
Q

Homeostasis in body temperature: If too cold:

A

Vessels in the skin constrict and shivering begins (heat-gaining mechanism)

53
Q

Negative feedback and Homeostasis involves a receptor, Integrating (control) center, Effector. Describe the receptor.

A

The receptor is a structure that senses change in the body (e.g., stretch receptors above heart that monitor blood pressure)

54
Q

Negative feedback and Homeostasis involves a receptor, Integrating (control) center, Effector. describe the integrating (control center)

A

Integrating (control) center is the control center that processes
the sensory information, “makes a decision,” and directs the
response (e.g., cardiac center of the brain)

55
Q

Negative feedback and Homeostasis involves a receptor, Integrating (control) center, Effector. describe the Effector

A

Effector is the cell or organ that carries out the final corrective
action to restore homeostasis (e.g., the heart)

56
Q

Describe Postive Feedback.

A

It is a self-amplifying cycle. Leads to greater change in the same direction.

57
Q

For positive feedback, Feedback loop is:

A

repeated—change produces more
change

58
Q

What are some examples of life events that involve positive feedback?

A

Examples include: childbirth, blood clotting, protein
digestion, and generation of nerve signals

59
Q

Define Gradient

A

It is a difference in chemical concentration, charge,
temperature, or pressure between two points

60
Q

Positive feedback, can be dangerous. Examples will be:

A

Vicious circle of runaway fever

61
Q

Matter and energy tend to flow :

A

down gradients

62
Q

Movement in the opposite direction is “up the gradient”
and requires spending:

A

metabolic energy

63
Q

Who is the “Father of medicine”?

A

Hippocrates

64
Q

What did Aristotle believe?

A
  1. Believed diseases had supernatural or physical causes.
  2. Believed complex structures were built from simpler parts
65
Q

What did Robert Hooke contribute to modern medicine?

A
  1. Made many improvements to compound microscope—two
    lenses: ocular lens (eyepiece) and objective lens (near
    specimen)
  2. Published first comprehensive book of microscopy
    (Micrographia) in 1665
66
Q

What was Antony van Leeuwenhoek contribution to modern medicine?

A
  1. Invented a simple (single-lens) microscope with great
    magnification to look at fabrics (200X)
  2. Published his observations of blood, lake water, sperm,
    bacteria from tooth scrapings, and many other things