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Anatomy And Physio Senior Year > Homeostasis Quiz > Flashcards

Homeostasis Quiz Flashcards

1
Q

Anatomy is?

A

The study of the structure of an organism and the relationship of its parts.

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2
Q

What is another word for the study of anatomy?

A

Morphology

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3
Q

Gross anatomy is?

A

Structures large enough that one can see with the naked eye

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4
Q

Surface anatomy is?

A

The study of superficial markings

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5
Q

Regional anatomy is?

A

The study of specific areas of the body (eg head, trunk)

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6
Q

Systematic anatomy is?

A

The whole system. Aka the study of the 11 specific organ systems

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7
Q

Microscopic anatomy involves

A

Studying anatomical structures that cannot be seen with the unaided eye

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8
Q

The two types of Microscopic anatomy are

A
  1. Cytology - cells

2. Histology- tissues

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9
Q

Physiology is?

A

The study of the functions of living organisms

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10
Q

Examples of physiology include

A
  1. Renal- kidney function
  2. Neurophysiology- workings of the nervous system
  3. Cardiovascular- operation of the heart and blood vessels
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11
Q

Key concept: all physiological functions are performed by specific anatomical structures aka?

A

Structure and function are complementary

Ex. Aorta is the largest artery because it pumps to all the organs

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12
Q

The organ systems are

A
  • integumentary
  • skeletal
  • muscular
  • nervous
  • endocrine
  • digestive
  • circulatory
  • urinary
  • reproductive
  • lymphatic
  • respiratory
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13
Q

Homeostasis is when

A

All body systems work together to respond to external and internal changes to function within normal range
Ex. Body temp

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14
Q

The internal environment of the body is in a _____ state of equilibrium

A

Dynamic

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15
Q

Failure to function within the normal range results in?

A

Disease/ death

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16
Q

Variables produce a what in the body?

A

Change

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17
Q

The stimulus is what

A

Instigates the change

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18
Q

Things instigated by stimuli include:

A
  • temp
  • glucose level
  • increase heart rate due to exercise/ stress
19
Q

The homeostatic control mechanisms are: ( in order)

A
  1. Stimulus
  2. Receptor
  3. Input
  4. Control center
  5. Output
  6. Effector
  7. Response
20
Q

The stimulus

A

Produces change

21
Q

The receptor

A

Detects change

22
Q

The input gets info from the receptor and

A

Then the info is sent along diff pathways to the control center

23
Q

The control center

A

Determined the set point at which the variable is maintained

24
Q

The output then

A

Takes the info and sends it along the efferent pathway to the effector

25
Q

The effector

A

Provides the means to respond

26
Q

The response

A

Reduces the effect of the stimulus and returns variables to homeostatic levels

27
Q

Three main components of a feedback loop

A
  1. Receptor
  2. Control center creates the set point: tells what particular value should be i.e. 98.6
  3. Effector
28
Q

The AFFERENT pathway

A

Approaches the control center

29
Q

The EFFERENT pathway:

A

Exits the control center

30
Q

Negative feedback mechanisms:

A
  • seek to maintain a constant state
  • shuts off/negates stimulus
  • is more common
    Aka the break
31
Q

Positive feedback mechanisms:

A
  • add energy to the system and increases output repeatedly
  • response is accelerated
    Aka the gas
32
Q

An ex of neg feedback is

A

Regulation of body temp

33
Q

True or false positive feedback is a way to maintain homeostasis

A

FALSE

34
Q

In positive feedback the effector output:

A

Reinforces or exaggerates the stimulus

35
Q

Two examples of pos feedback include

A

Blood clotting

Labor contractions during birth

36
Q

Homeostatic imbalance is often used as a def of?

A

Disease

37
Q

A disturbance of homeostasis or the body’s normal equilibrium is known as

A

Homeostatic imbalance

38
Q

Overwhelming the usual neg feedback mechanisms allows destructive positive feedback mechanisms to take over which is a form of

A

Homeostatic imbalance

39
Q

What is a feedback control loop?

A

How the body reacts to changes / external factors

40
Q

Explain the diff b/w pos and neg feedback loops

A

Neg stops stimulus
Pos exaggerate stimulus

Neg does maintain homeostasis
Pos doesn’t maintain homeostasis

41
Q

What happens to your homeostatic mechanisms when u have a fever?

A
  • Body temp increases
  • Body resets set point to the fever temp
  • It increases the temp to keep bacteria/ virus from replicating
  • goes back to the original set point AFTER the virus is gone
42
Q

Homeostasis can be described as

A

A maintenance of internal environment

43
Q

Sneezing is pos or neg feedback?

A

Pos

Anatomy And Physio Senior Year (6 decks)

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