Activity 1: Examining and Classifying Bones

Helpfulness: 0
Set Details Share
created 3 years ago by Zajdab
345 views
updated 3 years ago by Zajdab
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

The skeleton is constructed of what 2 most supportive tissues?

1. cartilage

2. bones

2

In embryos, the skeleton is comprised of primarily what cartilage?

Hyaline

3

In adults, most of the hyaline cartilage is replaced by what?

Bones

4

Cartilage remains in which 6 isolated areas?

1. external ear

2. bridge of nose

3. larynx

4. trachea

5. joints

6. parts of rib cage (costal cartilage)

5

What are the 5 functions of the skeleton (aka bones)?

1. Support

2. Protection

3. Acts as a system of levers for skeletal muscles to move the body

4. Store lipids and minerals (i.e. calcium)

5. Hematopoiesis

6

Bones are connected where?

joints or articulations

7

The body is divided into which 2 divisions?

1. axial skeleton

2. appendicular skeleton

8

Define the makeup of the axial skeleton.

Bones lying around the body's center of gravity.

9

Define the makeup of the appendicular skeleton.

Bones of the limbs.

10

How many bones are there in the body?

206

11

The bones of the adult skeleton are composed of how many types of osseous tissues?

2

12

What are the two types of osseous tissues?

1. Compact bone

2. Spongy bone

13

Compact bone has what 2 physical features?

1. Smooth

2. Homogenous.

14

Spongy bone has what 2 features?

1. Composed of trabeculae (columns)

2. Lots of open space

15

Bones may be further classified into what 4 groups?

1. Long

2. Short

3. Flat

4. Irregular

16

Describe the 2 general physical features of long bones.

1. Longer than they are wide

2. Consists of shaft with heads at either end

17

Long bones are composed primarily of what bone type?

Compact bone

18

What are 2 examples of long bones?

1. Femur

2. Phalanges

19

Describe the general physical feature of short bones.

Cube-shaped

20

Short bones are composed of what type of bone more than ____?

Composed of spongy bone more than compact bone

21

What are are 2 examples of short bones?

1. Tarsals

2. Carpals

22

Describe the 2 general physical features of flat bones.

1. Thin

2. Two layers of compact bone sandwiching a thicker layer of spongy bone

23

Give general examples of flat bones?

Bones of the skull

24

Describe the feature of irregular bones.

They don't fall into the other three categories, long, short, and flat.

25

Give an example of irregular bones.

Vertebrae

26

What are 2 other subcategories of bones?

1. Sesamoid bones

2. Sutural bones

27

What are sesamoid bones and where are they formed?

Short bones formed within tendons

28

Give an example of sesamoid bones.

Patellas (kneecaps)

29

What are sutural bones and where are they found?

Tiny bones between cranial bones

30

T/F? If false, explain why.

All sesamoid and sutural bones are not included in the bone count of 206?

False. The patellas, which are sesamoid bones, are included.

31

T/F? Bone surfaces are featureless.

False.

32

Bones can be scarred with what 3 features?

1. Bumps

2. Holes

3. Ridges

33

Bumps, holes, and ridges can be classified generally as what?

Bone markings

34

Bone markings reveal what 3 things?

1. Where bones form joints with other bones

2. Where muscles, tendons, and ligaments were attached

3. Where blood vessels and nerves passed

35

Bone markings fall into what 2 main categories?

1. Projections or processes

2. Depressions or cavities

36

How do projections or processes physically form?

Grow out of bones

37

Projections or processes serve as the site for what and helps to form what?

1. Sites of muscle attachment

2. Help form joints

38

Describe depressions or cavities physically?

Indentations or openings in the bones

39

What is the main function of depressions or cavities?

Serve as conduits for nerves and blood vessels.

40
card image

Categorize the various bones into long, short, flat, irregular, or sesamoid.

1. Long: Tibia, fibula, femur, humerus, radius, ulna, phalanges, metacarpals, metatarsals

2. Short: Tarsal, carpal, talus, calcaneus, patella

3. Flat: Sternum, cranium, rib, scapula, clavicle

4. Irregular: Vertebra, bones of pelvic girdle (ilium, pubis, ischium), facial bones