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Skeletal System > Bones > Flashcards

Bones Flashcards

1
Q

How many bones does a baby have?

A

300

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2
Q

Skeletal System

A

consists of around 206 bones in an adult, along with cartilage, joints, and ligaments.

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3
Q

What percentage of the total body mass does the skeletal system account for

A

20% percent of the body mass. However it can vary depending on factors such as age, sex, and overall body composition

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4
Q

2 sections of the human skeleton

A

Axial and Appendicular Bones

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5
Q

Axial Bones

A

Includes skull and torso (vertebral column, and thoracic cage)

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6
Q

Appendicular Bones

A

Limbs

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7
Q

How many bones are present in skull

A

22 bones

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8
Q

Differentiate Cranial Bones and Facial Bones

A

Cranial bones: protect the brain
Facial bones: give structure to the face

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9
Q

What types of bones does the skull mainly consist of?

A

Flat bones

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10
Q

Fibrous joints that connect the bones of the skull

A

Sutures

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11
Q

Cranium consists of:

A

a vault (calvaria) and a base (top-down view)

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12
Q

Three fossae of the base (cranium) that produce the cranial cavity

A

Anterior Cranial Fossa
Middle Cranial Fossa
Posterior Cranial Fossa

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13
Q

House of the brain

A

Cranial cavity

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14
Q

3 other cavities in the skull

A

Orbit, Ear, and Nasal Cavity

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15
Q

8 Cranial Bones

A

Frontal
2 Parietal
2 Temporal
Occipital
Sphenoid
Ethmoid

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16
Q

What are the sutures in brain?

A

Coronal
Sagittal
Lambdoid
Squamous
Occipitomastoid

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17
Q

Connects Frontal and Parietal

A

Coronal Suture

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18
Q

Connects the 2 Parietal

A

Sagittal Suture

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19
Q

Connects Temporal and Occipital

A

Lambdoid Suture

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20
Q

Suture between the occipital bone and the mastoid portion of the temporal bone

A

Occipitomastoid Suture

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21
Q

Paired bilateral cranial suture that connects the temporal and parietal bones

A

Squamous Suture

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22
Q

Holes that nerves, arteries, and veins pass through

A

Foramina

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23
Q

Foramen magnum

A

hole for the spinal cord in the skull that allows the spinal cord to pass through and connect with the brainstem

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24
Q

14 facial bones

A

2 Nasal
2 Lacrimal
2 Inferior Nasal Concha
2 Palatine
2 Maxillary
2 Zygomatic
Mandible
Vomer

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25
Q

A bone that sits below the mandible and is not connected to any other bone

A

Hyoid

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26
Q

Other term for Vertebral column

A

Spinal column, spine

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27
Q

Vertebral column

A

Bones in the spine that forms S shape to support everything from the skull to the pelvis

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28
Q

How many bones are there in spine?

A

26 irregular bones.

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29
Q

5 Sections of the Spine and the bones

A

7 Cervical Vertebrae (C1-C7)
12 Thoracic Vertebrae (T1-T12)
5 Lumbar Vertebrae (L1-L5)
1 Sacrum (5 fused vertebrae)
1 Coccyx (Tailbone)

30
Q

Major Ligaments in spine

A

Anterior longitudinal ligament
Posterior longitudinal ligament
Intervertebral Disc

31
Q

Cushiony pads between vertebrae, made of nucleus pulposus and anulus fibrosus. Acting as shock absorbers

A

Intervertebral Discs

32
Q

A small opening in each of the bones that make up your spine for spinal cord passage

A

Vertebral Foramen

33
Q

Protrusion on vertebrae for muscle attachment

A

Spinous Process

34
Q

Extend laterally from vertebrae for muscle attachment

A

Transverse Process

35
Q

Individual Vertebra consists of

A

body and vertebral arch

36
Q

Vertebral Arch is made up of

A

2 Lamina and 2 Pedicle

37
Q

First seven vertebrae in the neck region

A

Cervical Vertebrae

38
Q

Middle twelve vertebrae connected to ribs

A

Thoracic Vertebrae

39
Q

Lower five vertebrae supporting more weight

A

Lumbar Vertebrae

40
Q

Fused vertebrae below lumbar region

A

Sacrum

41
Q

Tailbone made of fused tiny vertebrae

A

Coccyx

42
Q

Comprised of sternum, ribs, and costal cartilage

A

Thoracic Cage

43
Q

A flat bone right in the middle of thorax

A

Sternum

44
Q

3 bones of sternum

A

Manubrium, Body, Xiphoid Process

45
Q

How many pairs of ribs are there?

A

12

46
Q

True ribs

A

1-7. Attach directly to the sternum via costal cartilage

47
Q

False ribs

A

8-10 = Attach indirectly to the sternum via costal cartilage to cartilage from ribs above

11-12 = floating ribs

48
Q

true ribs gets _______ going from 1 to 7, and false ribs going ______ from 8-12

A

longer, shorter

49
Q

Pectoral girdle is

A

bones that attaches the upper limbs to the axial bones

50
Q

Pectoral Girdle comprised of

A

Clavicle
Scapula

51
Q

Collarbone with sternal end (connects to manubrium) and acromial ends (connects to scapula)

A

Clavicle

52
Q

Thin, flat bone with superior, medial, and lateral borders

A

Scapula

53
Q

Upper limb

A

Arm, forearm, hand

54
Q

Long bone in the arm with specific parts like trochlea and capitulum

A

Humerus

55
Q

Forearm consists of?

A

Radius and Ulna

56
Q

Bone in the forearm with radial tuberosity and styloid process

A

Radius

57
Q

Bone in the forearm longer than radius, with olecranon and coronoid process

A

Ulna

58
Q

Connects Radius and Ulna

A

Interosseous membrane

59
Q

Wrist made of eight short carpals

A

Carpus

60
Q

Eight short carpals

A

Scaphoid
Lunate
Triquetrum
Pisiform
Trapezium
Trapezoid
Capitate
Hamate

61
Q

Metacarpals

A

(thumb to pinky)
I
II
III
IV
V

62
Q

Phalanges

A

Finger bones, 14 per hand, with distal, middle, proximal phalanges. Thumb has only two; no middle p.

63
Q

Pelvic Girdle

A

attaches lower limbs to the axial skeleton

64
Q

Hip Bones

A

Ilium, ischium, and pubis, fused from three separate bones at birth

65
Q

Thigh bone, largest in the body, with parts like greater trochanter and patella

A

Femur

66
Q

Leg consist of

A

Fibula and Tibia

67
Q

Tibia

A

Thicker bone in the leg with features like medial malleolus and tibial tuberosity

68
Q

Fibula

A

Thinner bone in the leg with head and lateral malleolus

69
Q

Foot are comprised of

A

Tarsus, Metatarsals

70
Q

Tarsal bones

A

Talus, Calcaneus, Cuboid, Navicular, Medial Cuneiform, Intermediate Cuneiform, Lateral Cuneiform

71
Q

Metatarsals

A

I
II
III
IV
V

72
Q

Phalanges (toes)

A

14 per foot, 3 per toes with distal, middle, proximal phalanges. Thumb has only two; no middle p.

Skeletal System (1 decks)

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