Chapter 2 glossary Flashcards

1
Q

anabolism

A

process of simple molecules combining to form a complex molecule; requires energy

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2
Q

anatomy

A

aka gross anatomy; study of human body structures, how body parts are organized, science of interconnected structures of organisms or of their parts

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3
Q

autonomic nervous system (ANS)

A

part of the nervous system that controls involuntary muscle action and regulates the action of the smooth muscles, glands, blood vessels, heart and breathing

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4
Q

belly

A

middle part of the muscle

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5
Q

body system

A

aka systems; groups of body ORGANS acting together to perform one or more functions

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6
Q

brain

A

one of the body’s most complex organs that controls all the body’s functions

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7
Q

buccinator

A

muscle of the cheek between the upper and lower jaw that compresses that cheeks and expels air between the lips

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8
Q

catabolism

A

process of breaking complex molecules down into simple molecules; releases energy

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9
Q

cell membrance

A

thin layer of tissue that surrounds the cell; it protects the interior of the cell from surroundings; semipermeable

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10
Q

cells

A

basic unit of all living things

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11
Q

central nervous system

A

controls voluntary muscle actions and consists of the brain, spinal cord, spinal nerves, and cranial nervs

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12
Q

cervical vertabrae

A

seven bones located below the skull; provide support, structure and flexibility to the neck

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13
Q

connective tissue

A

is fibrous tissue binds and supports other body tissues and organs

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14
Q

corrugator

A

small muscle located between eyebrows below the frontalis; draws the eyebrow down and wrinkles forehead vertically

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15
Q

cranium

A

oval, bony case consisting of eight bones that protect the brain

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16
Q

cytoplasm

A

watery fluid that surrounds the nucleus; provides structure for cell parts to move within the cell membrane

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17
Q

depressor labii inferioris

A

muscle that surrounds the lower lip and draws it to one side, as when expressing sarcasm

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18
Q

epicranial aponeurosis

A

tendon that connects the occipitalis and frontalis muscle

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19
Q

epicranius

A

broad muscle that cover the top of the skull and consists of the occipitalis and frontalis

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20
Q

epithelial tissue

A

provides a covering that protects the body and is found within mony parts of the body such as skin, mucous membrane, digestive and respiratory organ the lining of the mouth, the lining of the heart and glands

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21
Q

ethmoid bone

A

separates nasal cavity for the brrain

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22
Q

facial skeleton

A

framework of the face; composed of 14 bone

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23
Q

frontal bone

A

bone that forms the forehead

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24
Q

frontalis

A

front portion of the epicranius; scalp muscle that raises the eyebrow, draws the scalp forward and causes wrinkles across the forehead

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25
Q

hyoid bone

A

u-shaped bone at the base of the tongue that supports it and its muscles; the only bone of the throat

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26
Q

integumentary system

A

body system consisting of skin and accessory organs, such as the oil and sweat glands, sensory receptors, hair and nails, it serves as a protective covering and helps regulate the body’s temperature

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27
Q

joint

A

connection between 2 or more bones

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28
Q

lacrimal bones

A

2 small, thin bones located in the front inside wall of the eye sockets

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29
Q

levator anguli oris

A

muscle that raises the angle of the mouth and draws it inward

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30
Q

levator labii superioris

A

muscle that surrounds and elevates the upper lip and dilates the nostrils as when expressing distaste

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31
Q

levator palpebrae superioris

A

thin muscle that controls the movement of the eye

32
Q

mandible

A

largest and strongest bone of the face that forms the lower jaw

33
Q

masseter

A

originates at the lower part of the zygomatic; moves the mandible, causing the mouth to close

34
Q

mastication

A

medical term for chewing

35
Q

maxillae bones

A

2 bones that form the upper jaw

36
Q

mentalis

A

muscle at the tip of the chin that elevates the lower lip and raises and wrinkles the skin of the chin

37
Q

metabolism

A

chemical process by which cells convert nutrients to energy

38
Q

mitosis

A

process of cell reproduction that occurs when the cell divides into 2 identical daughter cells

39
Q

motor nerves

A

carry impulses from the brain to the muscles or glands; these transmitted impulses produce movement

40
Q

muscular system

A

body system that covers and holds the skeletal system in place and moves various body parts

41
Q

myology

A

study of the structure, functions, and diseases of the muscular system

42
Q

nasal bone

A

two bones that form the bridge of the nose

43
Q

nerves

A

whitish bundles of nerve fibers that transmit impulses

44
Q

nerve tissue

A

carries messages to and from the brain and controls and coordinates all bodily funtions

45
Q

nervous system

A

well organized body system composed off the brain, spinal cord, and nerves; controls and coordinates all other body systems

46
Q

neurology

A

study of the structure, function, and pathology of the nervous system

47
Q

nucleus

A

specialized structure at the center of the cell; controls growth and reproduction of the cell and contains the cell’s genetic material

48
Q

occipital bone

A

located below the parietal bones forming the back of the skull above the nape

49
Q

occipitalis

A

back portion of the epicranius; muscle that draws the scalp backward

50
Q

orbicularis oculi

A

ring of muscle of the eye socket that closes the eyelids and assists in pumping tears

51
Q

orbicularis oris

A

muscle that circles the mouth and contracts, puckers, and wrinkles the lips

52
Q

organs

A

groups of specialized TISSUES designed to perform specific functions

53
Q

origin

A

part of the muscle that does not move and is anchored to the bone; attached closest to the skeleton

54
Q

osteology

A

the study of bones

55
Q

parietal bones

A

two bones that form the sides and top of the cranium

56
Q

peripheral nervous system

A

system of nerves connecting the outer parts of the body to the central nervous system; both sensory and motor nerves; carries impulses to and from the central nervous system

57
Q

physiology

A

the study of the functions or activities performed by the body’s structures

58
Q

platysma

A

broad muscle extending form the pectoral and deltoid muscles to the side of the chin; responsible for lowering the lower jaw and lip

59
Q

procerus

A

muscle that covers the bridge of the nose, lowers the eyebrows, and causes wrinkles across the bridge of the nose

60
Q

protoplasm

A

makes up a cell; contains nutrients , mineral salts, and water

61
Q

reflex

A

automatic reaction that involves sending an impulse from a sensory nerve to the spinal cord

62
Q

risorius

A

muscle at the corner of mouth that draws it out and back, as when grinning

63
Q

sensory nerves

A

they carry messages form the sense organs to the brain and spinal cord

64
Q

skeletal system

A

forms the physical foundation of the body and is composed of 206 bones of varied size and shape; connected by movable and immovable joints

65
Q

skull

A

skeleton of the head; divided into two parts called the cranium and facial skeleton

66
Q

spinal cord

A

is the portion of the central nervous system that originates in the brain and extends down to the bottom of the spine

67
Q

sphenoid bone

A

form base and sides of the skull; connects all bones together

68
Q

sternocleidomastoideus

A

neck muscle that lowers and rotates the head; originates at the clavicle and inserts at the temporal bone near the ear

69
Q

temporal bones

A

two bones forming the sides of the head in the ear region

70
Q

temporalis

A

located near the temple that opens and closes the jaw

71
Q

tissue

A

group of similar CELLS that perform a specific function

72
Q

trapezius

A

muscle that covers the back of the neck and upper and middle regions of the back; lifts and turns the head, raises the shoulder and controls swinging movements of the arm

73
Q

triangularis

A

muscle at the lip that extends over the chin and pulls down the corners of the mouth when frowning

74
Q

zygomatic bones

A

aka cheekbones or malar bones; they form the prominence of the cheeks and the outer part of eye socket

75
Q

zygomaticus major

A

muscle that extends from the zygomatic bone to the angle of the mouth; directs the lip outward and upward when laughing or smiling

76
Q

zygomaticus minor

A

muscle that works with the zygomaticus major to make facial expressions