bones Flashcards

chapter2

1
Q

what are the 5 main functions of the skeletal system?

A

-give shape and support to the body
-protects various internal structures and organs
-serve as attachments for muscles and act as levers to produce body movement
-help produce red and white blood cells
-store most of the body’s calcium, phosphorus, magnesium, and sodium supply

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2
Q

how many bones are in an adult skeleton?

A

206

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3
Q

how many bones are in the human head?

A

22

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4
Q

what is a cranium and how many bones does it have?

A

it’s an oval boney case that protects the brain and is made of 8 bones

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5
Q

How many bones are in the face?

A

14

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6
Q

what bone forms the back of the skull above the nape?

A

the occipital bone

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7
Q

which two bones form the sides and crown of the cranium?

A

2 parietal bones

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8
Q

what bone forms the forehead?

A

frontal bone

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9
Q

which two bones form each sides of the head in the ear region?

A

2 temporal bones

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10
Q

what light, spongey bone is between the eye sockets and form the nasal cavity?

A

ethmoid bone

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11
Q

what bone forms the side of the eye socket?

A

sphenoid bone

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12
Q

what two bones form the bridge of the nose?

A

two nasal bones

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13
Q

what are the two smallest and most fragile bones of the face, at the inside of the eye sockets?

A

two lacrimal bones

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14
Q

what bones form the prominence of the cheeks?

A

two zygomatic bones/malar bones/cheekbones

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15
Q

what bones form the upper jaw?

A

two maxillae bones

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16
Q

what forms the lower jaw and is the strongest and largest bone in the face?

A

mandible

17
Q

name the two bones of the neck: and where are they:

A

hyoid, u-shaped bone that supports the tongue and it’s muscles
cervical vertebrae, seven bones at the top of the vertebral column located in neck region

18
Q

how many bones are in the chest?

A

5

19
Q

what bone acts as a bony cage to protect organs, consisting of all other bones

A

thorax

20
Q

what are the 12 pairs of bones forming the wall of the thorax?

A

ribs

21
Q

what is the large flat bone of the shoulder? (shoulder blade)

A

scapula

22
Q

what is the flat bone that forms the ventral/front support of ribs?

A

sternum/breastbone

23
Q

what is the bone that joins the sternum and the scapula?

A

clavicle/collarbone

24
Q

what is the uppermost and largest bone of the arm extending from the elbow to the shoulder?

A

humerus

25
Q

what is the inner and larger bone of the forearm, attached to wrist on pinky side?

A

ulna

26
Q

what is the smaller bone in the forearm on the thumb side?

A

radius

27
Q

what is the joint composed of 8 small irregular bones held together by ligaments?

A

carpus/wrist

28
Q

what is the name of the palm and 5 long slender bones?

A

metacarpus/metacarpal bones

29
Q

what are the bones in your fingers called?

A

phalanges, digits