Activity 2: Examining a Long Bone

Helpfulness: 0
Set Details Share
created 3 years ago by Zajdab
42 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

What is the diaphysis of the bone?

shaft

2

The periosteum is what type of membrane and what tissue is that membrane made out of?

A fibrous membrane made up of dense irregular connective tissue

3

"What" of the periosteum penetrates into the bone?

Fibers

4

The penetrating fibers of the periosteum are specifically called what?

Perforating collagen fiber bundles (aka Sharpey's fibers)

5

The perforating collagen fibers allow what 2 things to travel through the periosteum and invade the bone?

1. Blood vessels

2. Nerves

6

In which specific layer of the bone can osteogenic cells be found?

Inner (or osteogenic) layer of the periosteum

7

What is the epiphysis?

The ends of long bone

8

Epiphysis is composed of a thin layer of what that encloses spongy bone?

A thin layer of compact bone that encloses spongy bone

9

Which type of cartilage covers the epiphyseal surfaces in place of the periosteum?

Articular cartilage

10

Articular cartilage is made up of what type of cartilage?

Hyaline cartilage

11

Articular cartilage provides what type of surface to minimize what at joints?

Provides smooth surface to minimize friction at joints

12

The epiphyseal plate is found at what age?

Young age

13

What is the epiphyseal plate composed of?

Hyaline cartilage

14

The epiphyseal plate provides for what type of growth during youth?

Provides for longitudinal bone growth during youth

15

With age and once the long bone stops growing, the hyaline cartilage in the epiphyseal plate is replaced by what?

Bone

16

When the hyaline cartilage of the epiphyseal plate is replaced, what is the epiphyseal plate now called?

Epiphyseal lines

17

In an adult animal, the central cavity of the shaft is a storage region for what marrow or tissue type?

Yellow marrow or adipose tissue

18

In infants, what is found in the central cavity of the shaft and what is made there?

red marrow, blood cells

19

In adults, what marrow is confined to the interior parts of the epiphyses?

Red marrow

20

Red marrow, in adults, can be found specifically between what of spongy bone?

Between trabeculae of spongy bone

21

The endosteum lines what 3 parts of a bone and covers what part of the bone?

1. Lines the medullary cavity

2. Lines the central canals of compact bone

3. Lines the perforating canals of compact bone

4. Covers the trabeculae of spongy bone

22

The endosteum contains what specific types of cells?

Osteogenic cells

23

Osteogenic cells can differentiate into what?

Osteoblasts

24

What is the function of osteoblasts?

They synthesize bones by secreting a bone matrix and calcium.

25

Differentiate an osteoblast from an osteocyte.

An osteocyte is an osteoblast that has been embedded in the bone matrix it has secreted.

26

How does the thickness of the compact bone layer making up the shaft remain constant?

As the bone grows in diameter on its external surface, it is constantly being broken down on its inner surface.

27

What acts as a reliable indicator of the age of children exhibiting normal growth

Longitudinal bone growth at epiphyseal plates

28

Why does longitudinal bone growth at epiphyseal plates act as a reliable indicator of the age of children exhibiting normal growth?

It follows a predictable sequence

29

What is the name of a specific condition associated with problems of long-bone growth?

Pituitary dwarfism

30

If problems of long-bone growth are suspected, what can you do to diagnose?

Use X-ray films to view the width of the growth plates

31

A thin epiphyseal plate indicates what?

growth retardation

32
card image

Name the missing parts.

card image
33
card image

Name the missing parts.

card image