Introduction Flashcards

1
Q
  • The study of the biological functions of organs and their interrelationships?
  • STUDIES INTERPLAY OF FACTORS THAT AFFECT
    GROWTH
A

Physiology

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2
Q

Father of Modern Physiology

A

Claude Bernard (1813-1878)

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3
Q

observed that the internal environment remains remarkably constant despite changing conditions in the external environment.

A

Claude Bernard

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4
Q

An American physiologist that coined the term “Homeostasis” in 1932

A

Walter Cannon (1871-1945)

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5
Q

Stable internal environment

A

Homeostasis

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6
Q

Two types of Physiology

A
  1. Integration
  2. Homeostasis
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7
Q

Nutrients and oxygen
are distributed by the ___

A

Blood

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8
Q

Metabolic wastes are
eliminated by the _____

A

Urinary and Respiratory Systems

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9
Q

Binds together or supports cells, other tissues/organs

A

Connective Tissue

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10
Q
  • Contracts on stimulation
  • Movement, posture and heat production
A

Muscle (contractile) tissue

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11
Q

Conducts nerve impulses throughout the body

A

Nerve Tissue

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12
Q
  • Covers all body surfaces; lines all cavities; forms glands
  • Protective barrier against the environment
A

Epithelial Tissue

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13
Q

Major Organ Systems

A
  1. Integumentary
  2. Skeletal
  3. Muscular
  4. Circulatory
  5. Lymphatic
  6. Respiratory
  7. Digestive
  8. Urinary
  9. Reproductive
  10. Nervous
  11. Endocrine
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14
Q
  1. DYNAMIC EQUILIBRIUM
  2. INSPITE OF MULTIPLE
    STIMULI
  3. MAINTAINED BY
    NEGATIVE FEEDBACK
A

HOMEOSTASIS

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15
Q

the ability to maintain a relatively
stable internal environment in an ever-changing
outside world

A

Homeostasis

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16
Q

The body is in a dynamic
state of equilibrium

A

The internal environment

17
Q

interact to
maintain homeostasis

A

Chemical, thermal, and neural factors

18
Q

Produces
change
in variable

19
Q

Information
sent along
afferent
pathway to

20
Q

Information sent
along efferent
pathway

21
Q

Response of effector feeds back to influence magnitude of stimulus and returns variable to

A

Homeostasis

22
Q

Regulation of
homeostasis is
accomplished
through _____ and _____

A

Nervous and Endocrine systems

23
Q

DETECTS CHANGES (STIMULI)
IN THE BODY.

24
Q

DETERMINES A SET
POINT FOR A NORMAL RANGE.

A

CONTROL CENTER

25
CAUSES THE RESPONSE DETERMINED BY THE CONTROL CENTER.
EFFECTOR
26
A regulatory mechanism in which a change in a controlled variable triggers a response that OPPOSES the change.
Negative Feedback
27
- decreases the intensity of the stimulus or eliminates it . - causes the system to change in the opposite direction from the stimulus
Negative Feedback Mechanism
28
Example of Negative Feedback
Home heating Thermostat
29
- enhances or exaggerates the original stimulus so that activity is accelerated. - results in change occurring in the same direction as the original stimulus . - usually control infrequent events such as blood clotting or childbirth
Positive Feedback
30
- Does not maintain homeostasis. - Characterized by being short in duration, and infrequent
Positive feedback
31
Diseases that cause homeostatic imbalances
1. chills 2. fever 3. Elevated white blood counts
32
Reduces our ability to maintain homeostasis
Aging due to heat stress