Chapter 2 Part 1

Question 1

Optic

Answer 1

Ear

Question 2

Nasal

Answer 2

Nose

Question 3

Oral

Answer 3

Mouth

Question 4

Orbital

Answer 4

Eyes

Question 5

Mental

Answer 5

Chin

Question 6

Buccal

Answer 6

Cheeks

Question 7

Frontal

Answer 7

Forehead

Question 8

Occipital

Answer 8

Back of the head

Question 9

Cephalic

Answer 9

Whole head

Question 10

Cervical

Answer 10

Neck

Question 11

Organs systems in head and neck regions

Answer 11

Nervous and endocrine

Question 12

Endocrine system structures

Answer 12

Hormones, hypothalamus, pituitary gland, thyroid and adrenal gland

Question 13

Parts of nervous system

Answer 13

Brain, spinal cord and nerves

Question 14

Elements

Answer 14

The simplest form of matter to have unique chemical qualities. Cannot be broken down by ordinary chemical means

Question 15

How many naturally occurring elements are there

Answer 15

91

Question 16

What 6 elements are 98.5% of the human body

Answer 16

Oxygen, carbon,hydrogen, nitrogen, calcium ca, phosphorus

Question 17

Lesser elements make up what percent of the body

Answer 17

.8

Question 18

What are the six lesser chemicals in the body

Answer 18

Potassium k, sodium na, chloride cl, sulfur s, iron fe, magnesium mg

Question 19

Trace elements make up what percent of the body

Answer 19

Less than .7

Question 20

Minerals

Answer 20

Inorganic elements extracted from soil to plants and passed to humans

Question 21

What are minerals important for

Answer 21

Body structure enzyme function

Question 22

Electrolytes

Answer 22

Mineral salts needed for nerve and muscle function

Question 23

3 components of an atom

Answer 23

Protons p+, neutrons n0 and electrons e-

Question 24

What does the number of electrons tell you

Answer 24

Atomic number

Question 25

Protons are and found where

Answer 25

Positive and found in nucleus

Question 26

Neutron are and found where

Answer 26

Neutral and found in nucleus

Question 27

Number of neutrons and protons is

Answer 27

Atomic mass

Question 28

Isotopes are

Answer 28

Elements that have different number of neutrons

Question 29

Ionizing

Answer 29

Ejects electrons destroys molecules

Question 30

Electrons

Answer 30

Negatively charged found in energy levels around the nucleus

Question 31

Number of electrons equals the number of protons in what

Answer 31

Neutral atom

Question 32

Ions

Answer 32

An atom that gains or loses electrons

Question 33

Cations

Answer 33

Positively charged ions

Question 34

Anions

Answer 34

Negatively charged ions

Question 35

Cations _____ electrons

Answer 35

Loses

Question 36

Anions _____ electrons

Answer 36

Gains

Question 37

Ionization

Answer 37

Transfer of electrons from one atom to another

Question 38

Electrolytes are a substance that

Answer 38

Ionize in water

Question 39

3 importance’s of electrolytes is

Answer 39

Chemical reactivity, osmotic effects electrical excitability of nerve and muscles

Question 40

Molecule

Answer 40

Chemical particle composed of 2 or more atoms untied by a chemical bond

Question 41

Compound

Answer 41

Molecule composed of 2 or more different elements

Question 42

Molecular formula

Answer 42

Identifies elements and how many atoms of each are present

Question 43

Structural formula

Answer 43

Identifies location of each atom

Question 44

Chemical bonds

Answer 44

Hold atoms together within a molecule or attract one molecule to another

Question 45

The most important types of chemical bonds

Answer 45

Ionic bonds, covalent and hydrogen bonds

Question 46

Bonds are formed by

Answer 46

Using electrons in outer mot energy level valence shell

Question 47

Octet rule

Answer 47

Atoms interact to fill their valence shell

Question 48

Inert elements

Answer 48

Full valence shell will not make chemical bond with another atom

Question 49

Reactive elements

Answer 49

Valence shell not full will make a chemical reaction

Question 50

Ionize bond

Answer 50

Will transfer electrons

Question 51

Single covalent bonds

Answer 51

One pair of electrons shared

Question 52

Double covalent bonds

Answer 52

2 pairs of electrons shared

Question 53

Nonpolar bonds

Answer 53

Electrons shared equally strongest bond

Question 54

Polar bonds

Answer 54

Electrons not shared equally

Question 55

Ionic bonds

Answer 55

Attractions between anions and cations easily broken by water

Question 56

Hydrogen bonding

Answer 56

Weak inter molecular or intermolecular attraction between a slightly positive hydrogen and a slightly negative oxygen