Skeletal/muscular systems Flashcards

(69 cards)

0
Q

The study of bones is called

A

Osteology

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1
Q

Provides strong support for the body

A

Skeletal system

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2
Q

How many bones are in the body?

A

206

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3
Q

Functions of the skeletal system

A
Support 
Protection (of vital organs)
Movement (levers in muscle action)
Storage (of minerals, primarily calcium and phosphorous)
Blood cell formation
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4
Q

How much is the content of inorganic (mineral) matter (water, mineral salts, calcium phosphate - main component)

A

2/3 or 67%

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5
Q
How much organic (animal) matter
Protein fibers
collagen 
 -mineral salts are deposited here
 -creates flexibility
 -tensile strength
 -amount decreases with age
A

1/3 or 33%

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6
Q

What are the two types of bones?

A

Cancellous

Compact

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7
Q

Also know as spongy
Reduces the overall weight of the skeleton
Found in the ends of long bones and sandwiched between layers of compact bone in flat bones such as the skull

A

Cancellous

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8
Q

Also know as dense
Arranged in concentric rings
Cells communicate nutrients and wastes through thread-like cytoplasmic extensions know as canaliculi.

A

Compact bone

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9
Q

Factors that effect bone growth and development.

A

Exercise
Sunlight
Nutrition
Hormones

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10
Q

The 80 bones from the upright axis of the body, plus the ear bones

A

Axial skeleton

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11
Q

The skull contains how many bones

A

22 bones plus 6 ear ossicles = 28 total

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12
Q

What bones are located in the cranium?

A
(8)
2 parietal 
2 temporal
1 frontal
1 occipital
1 sphenoid
1 ethmoid
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13
Q

How many bones are in the face

A
(14)
2 nasal
2 maxillary
2 zygomatic or malar
2 lacrimal
2 palatine
2 inferior conchae or turbinate
1 vomer
1 mandible
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14
Q

No attachment to other bones ( Adam’s apple)

A

Hyoid

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15
Q

How many bones are in the vertebral column?

A
(26)
7 cervical vertebrae
12 thoracic vertebrae
5 lumbar vertebrae 
1 sacrum- 5 fused
1 coccyx - 4 fused
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16
Q

How many bones make up the sternum and ribs?

A
(25)
1 sternum
7 pairs of true ribs
5 pairs of false ribs
 (2 pairs are floating ribs)
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17
Q

The study of muscles function and pathology is termed?

A

Myology

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18
Q

The muscular system accounts for approximately how much of the total body weight?

A

40%

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19
Q

A sheet of pearly-white fibrous tissue that takes the place of a tendon in sheet like muscles having a wide area of attachment.

A

Aponeuroses

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20
Q

Types of muscles

A

Cardiac
Smooth
Skeletal

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21
Q

The voluntary striated muscles that are innervated by large motor neurons. They also are attached to a bone or bones by tendons or aponeuroses

A

Skeletal muscles

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22
Q

The portion that serves as the anchor or non-moveable portion of the muscle.

A

The ORIGIN of a muscle

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23
Q

The manner or place of attachment of a muscle to the part the moves.

A

Insertion

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24
The name that includes all the muscles of the scalp
Epicranius
25
Raises both eyebrows and lays just on top of the frontal bone
Frontalis
26
Is a tendon or aponeurosis which connects the frontalis to the occipitalis.
Epicranial aponeurosis
27
Muscle that covers the occipital bone.
Occipitalis
28
A partial dislocation of a muscle from bone
Subluxation
29
The sphincter muscle, fibers narrow the orbital opening and encourage the flow of tears by helping to empty the lacrimal sac (tear duct)
Orbicularis oculi
30
(Innervated by cranial nerve 3 - oculomotor)- raises the upper eyelid.
Levator palpebrae superioris
31
Draws the eyebrows down in frowning, located between the eyebrows
Corrugator supercilli
32
Draws the medial part of the eyebrow inferiorly- this produces transverse wrinkles over the bridge of the nose. Aids in focusing and reduces glare from the sun.
Procerus
33
What is the chemical composition of bone?
67% inorganic material | 33% organic material
34
State the functions of the skeleton system
``` Support Protection Movement Storage of minerals Blood cell formation ```
35
How many bones are in the human body?
206
36
The cranium consists of how many bones?
8
37
Name the bones that form the roof of the mouth
Palatine | Maxilla
38
Name the bones that form the nasal septum
Vomer | Ethnoid
39
What bone supports the tongue?
Hyoid
40
List the bones of the eye orbit.
``` Frontal Sphenoid Ethmoid Maxilla Palatine Zygomatic Lacrimal ```
41
In what area are each of the vertebrae found?
Spinal column
42
Is the Adam's apple a bone?
No, thyroid cartledge
43
What connective tissue structure attaches muscle to bone?
Tendons
44
What connective tissue structure attaches bone to bone
Ligament
45
State the location of the parietal bones
Sides of the top of the cranium
46
State the location of the frontal bone
The forehead
47
State the location of the zygomatic bone
Cheekbones
48
What bones form the bridge of the nose?
Nasal bone
49
Name the large bone in the upper arm
Humerus
50
Name the large bone in the thigh
Femur
51
What is the study of bones
Osteology
52
Name the bones in the forearm
Radius | Ulna
53
Name the bones in the leg (between the knees and ankle)
Fibula | Tibia
54
Name the bones in the fingers and toes
Phalanges
55
The study of muscles function and disease is
Myology
56
What percentage of the body weight is typically muscle?
40%
57
What are the histological types of muscle?
Cardiac (heart) Smooth (digestive tract) Skeleton (movement/posture/limbs)
58
Cardiac muscle is?
Striated and non-striated, involuntary
59
Smooth muscles are?
Striated and non-striated, involuntary
60
Skeleton muscles are?
Striated, voluntarily
61
The portion that serves as the anchor or non-movable portion of the muscle
Origin of a muscles
62
Is pulled to the origin when the muscle is engaged or in contraction.
Insertion of a muscle
63
What muscle covers the skull
Epicranius (galea aponeurotica)
64
What muscle surrounds the eye socket?
Orbicularis oculi
65
Where is the muscle mentalis located?
Chin
66
What is the relationship between the sphenoid bone and headaches?
If the muscles attach to the sphenoid bone becomes tight, the sphenoid bone will shift causing headaches.
67
Sphincter muscle, fibers narrow the orbital opening and encourage the flow of tears by helping to empty the lacrimal sac
Orbicularis oculi
68
The site of may tension-associated symptoms, including headaches, neck stress, etc. the trigeminal nerve (cranial nerve V) innervated the four muscles involved with this joint. All of these muscles close the jaw. (Masseter, temporalis, medial, & lateral ptergoids.)
Temporal mandibular joint