ANAPHY 3-A

Question 1

adult skeletal system is composed of how many bones

Answer 1

206

Question 2

These bones and cartilages are united by

Answer 2

ligaments

Question 3

includes all bones that lie on or near the central axis of the body

Answer 3

axial skeleton

Question 4

The adult axial skeleton consists of 80 bones and includes the

Answer 4

skull, vertebral column, ribs, and sternum.

Question 5

This division consists of all bones of the upper and lower limbs (extremities) and the shoulder and pelvic girdles.

Answer 5

Appendicular Skeleton

Question 6

adult appendicular skeleton comprises ___separate bones

Answer 6

126

Question 7

is a special type of small, oval-shaped bone that is embedded in certain tendons (most often near joints).

Answer 7

sesamoid bone

Question 8

the largest sesamoid bones.

Answer 8

two patellae

Question 9

The other most common sesamoid bones are located in

Answer 9

the posterior foot at the base of the first toe.

Question 10

consist of a body and two ends or extremities

Answer 10

Long bones

Question 11

A. Classification of Bones

Answer 11

long, short, irregular, and flat bones

Question 12

Long bones are found only in the

Answer 12

appendicular skeleton.

Question 13

roughly cuboidal and are found only in the wrists and ankles.

Answer 13

Short bones

Question 14

Short bones consist mainly of

Answer 14

Short bones consist mainly of cancellous tissue

Question 15

consist of two plates of compact bone with cancellous bone and marrow between them.

Answer 15

Flat bones

Question 16

example of falt bones

Answer 16

calvaria, sternum, ribs, and scapulae

Question 17

the narrow space between the inner and the outer table of flat bones within the cranium.

Answer 17

Diploe

Question 18

have peculiar shapes. (

Answer 18

Irregular bones

Question 19

give examples of irregular bones

Answer 19

vertebrae, facial bones, bones of the base of the cranium, and bones of the pelvis)

Question 20

usually provide movement in a single direction.

Answer 20

bicondylar

Question 21

Bicondylar joints are formed by

Answer 21

two convex condyles,

Question 22

allows the greatest freedom of motion

Answer 22

Ball and socket

Question 23

true or false:The greater the depth of the socket, the more limited is the movement.

Answer 23

true

Question 24

positioned opposite each other.

Answer 24

saddle

Question 25

positioned opposite each other.

Answer 25

saddle

Question 26

occurs primarily in one plane and is combined with a slight degree of rotation at an axis at right angles to the primary plane of movement.

Answer 26

Condylar

Question 27

condylar movements

Answer 27

flexion, extension, abduction, and adduction

Question 28

joint allows rotational movement around a single axis.

Answer 28

Pivot

Question 29

permit flexion and extension movements only.

Answer 29

hinge

Question 30

permits the least movement

Answer 30

gliding

Question 31

implies, is a sliding or gliding motion between the articulating surfaces

Answer 31

gliding

Question 32

freely movable joints, most often found in the upper and lower limbs

Answer 32

synovial joint

Question 33

synovial joint is characterized by a fibrous capsule that contains

Answer 33

synovial fluid

Question 34

also lack a joint cavity, and the articulating bones are held together tightly by cartilage.

Answer 34

Cartilaginous joint

Question 35

lack a joint cavity. The adjoining bones, which are nearly in direct contact with each other, are held together by fibrous connective tissue.

Answer 35

Fibrous joint

Question 36

funcitonal classification of joints

Answer 36

a. Synarthrosis —immovable joint b. Amphiarthrosis —joint with limited movement c. Diarthrosis —freely movable joint

Question 37

where is rbc produced

Answer 37

in flat and irregular bones such as the sternum, ribs, vertebrae, and pelvis as well as the ends of the long bones.

Question 38

Two types of bone formation

Answer 38

intramembranous endochondral

Question 39

When bone replaces membranes, the ossification is called

Answer 39

intramembranous.

Question 40

When bone replaces cartilage, the result is

Answer 40

endochondral

Question 41

much slower than intramembranous ossification, occurs in most parts of the skeleton, especially in the long bones.

Answer 41

Endochondral ossification

Question 42

occurs rapidly and takes place in bones that are needed for protection,

Answer 42

Intramembranous ossification

Question 43

the first center of ossification,

Answer 43

primary center

Question 44

where does primary effect occurs

Answer 44

midbody area

Question 45

primary center of ossification in growing bones is called

Answer 45

diaphysis

Question 46

– appear near the ends of the limbs of long bones.

Answer 46

Secondary center

Question 47

Most _____ centers appear after birth, whereas most _____ centers appear before birth

Answer 47

secondary, primary

Question 48

secondary center of ossification is called an

Answer 48

epiphysis

Question 49

types(?) of Fibrous joints

Answer 49

a. Syndesmosis – slightly movable b. Suture – immovable c. Gomphosis – very limited movement

Question 50

types(?) of Cartilaginous joints

Answer 50

symphysis and synchondrosis

Question 51

The process by which bones form within the body is known as

Answer 51

ossification.

Question 52

Ossification begins at about the ____ embryonic week

Answer 52

sixth