Human Anatomy & Physiology: Chapter 1 Flashcards

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created 7 years ago by Ana_Tulea
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updated 7 years ago by Ana_Tulea
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education, teaching methods & materials, science & technology, medical, physiology, science, life sciences, human anatomy & physiology, anatomy & physiology
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1

Which of the following best demonstrates the principle of complementarity of structure and function?

Bones can support and protect body organs because they contain hard mineral deposits.

2

A structure that is composed of two or more tissue types that work together to perform specific functions for the body is a(n) ________.

organ

3

Place the following in correct sequence from simplest to most complex:
1. molecules
2. atoms
3. tissues
4. cells
5. organs

2-1-4-3-5

4

One of the functional characteristics of life is excitability or responsiveness. This refers to ________.

sensing changes in the environment and then reacting or responding to them

5

Lungs carry out an excretory function.TrueFalse

true

6

Which life process in the body sustains all others?movement, reproduction, metabolism, responsiveness

metabolism

7
card image

If the figure were used to represent the regulation of body temperature, the structures represented by the letter C would include ______.

1.sweat glands

2.temperature sensors in the brain

3.hot and cold sensors in the skin

4.parts of the nervous system

1.sweat glands

8

Which of the following statements is true concerning feedback mechanisms?ANSWER: 1.Negative feedback mechanisms work to prevent sudden severe changes within the body.

2.Negative feedback mechanisms tend to increase the original stimulus.

3.Positive feedback mechanisms always result in excessive damage to the host.

4.Blood glucose levels are regulated by positive feedback mechanisms.

1.Negative feedback mechanisms work to prevent sudden severe changes within the body.

9

Which of the following statements is the most correct regarding homeostatic imbalance?ANSWER:

1.It is considered the cause of most diseases.

2.Negative feedback mechanisms are functioning normally.

3.The internal environment is becoming more stable.

4.Positive feedback mechanisms are overwhelmed.

1.It is considered the cause of most diseases.

10

Homeostasis is the condition in which the body maintains ________.ANSWER:

1.a relatively stable internal environment, within limits

2.the lowest possible energy usage

3.a dynamic state within an unlimited range, depending on circumstances

4.a static state with no deviation from preset points

1.a relatively stable internal environment, within limits

11

Which of the following organs is least likely to be damaged in an automobile accident?ANSWER:

1.stomach

2.intestines

3.urinary bladder

4.liver

3.urinary bladder