Ch. 4-Organization of Body Flashcards

0
Q

Chemical element

A

Substance that cannot be broken down any further; made up of atoms

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1
Q

Atom

A

Smallest basic chemical unit of an element. Contains nucleus, protons, neutrons, electrons

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2
Q

6 Elements in the Body

A

Oxygen, carbon, hydrogen, nitrogen, calcium, phosphorus

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3
Q

Molecules

A

Combination of two or more atoms that form a compound

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4
Q

Cells

A

Basic building blocks; perform specific functions

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5
Q

Cell membrane

A

Outside layer of cell; has selective permeability

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6
Q

Cytoplasm

A

Substance between nucleus and cell membrane, composed mostly of water, it’s where all the work happens that is not happening in the nucleus

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7
Q

Nucleus

A

Responsible for cell’s metabolism, growth, and reproduction. The cell’s “brain”. Also contains the chromosomes

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8
Q

Genome

A

Complete set of genes and chromosomes inside each cell

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9
Q

How many pairs of chromosomes does the body have?

A

23

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10
Q

Stem cells

A

Originate primarily from embryo; they can divide and renew themselves and basically form any type of tissue

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11
Q

Tissue

A

Group of similar cells that perform a specialized function

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12
Q

Four types of I tissue

A

Epithelial, connective, muscle, nerve

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13
Q

Epithelial tissue

A

Outer surfaces of body; lines body cavities, organs, and passageways; forms secreting portions of glands (sweat gland for example)

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14
Q

Connective tissue

A

Most widespread and abundant tissue, supporting network for organs, connects muscle to bone and bone to joint, bone is a dense form of this

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15
Q

3 types of muscle tissue

A

Skeletal (voluntary)
Smooth muscle (involuntary)
Cardiac (involuntary)

16
Q

Skeletal muscle tissue

A

Striated in appearance and is associated with movement and strength

17
Q

Smooth muscle tissue

A

Lines outside of organs, involuntary movement

18
Q

Cardiac muscle tissue

A

Found only in the heart, keeps it beating

19
Q

Nerve tissue

A

Contains neurons and glia cells, controls and coordinates actions of the body

20
Q

Organs

A

Several different tissues that serve a common purpose

21
Q

Organ systems

A

Group of organs that have common purpose

22
Q

Sagittal plane

A

Vertically divides body into left and right portions

23
Q

Transverse plane

A

Divides body into superior and inferior portions just below the waist

24
Q

Coronal or frontal plane

A

Vertically divides body into anterior (ventral) and posterior (dorsal) portions

25
Q

Drugs for therapeutic use

A

Relieves symptoms or sustains patient until an alternative can be used

26
Q

Drugs for diagnostic use

A

A drug taken so a doctor can locate something, for example drinking something before a cat scan so they can see inside better

27
Q

Drugs for curative use

A

Removes the causing agent

28
Q

Drugs for replacement use

A

Replaces something in the body (vitamins or hormones)

29
Q

Drugs for preventative or prophylactic use

A

Prevent disease or reduce severity

30
Q

Chemical name of a drug

A

Formula that describes composition of drug

31
Q

Generic name of drug

A

Official name with description of chemical structure. Always written in lowercase

32
Q

Trade or brand name of drug

A

Capitalized, name you’ll see in ads on TV or pamphlets

33
Q

Undesirable action

A

Unintended reaction that can happen that the doctor is aware of

34
Q

Adverse reaction

A

Unintended reaction that the doctor is not aware of