Skeletal System Week 3

Question 1

How many bones int he axial skeleton?

Answer 1

80 bones

Question 2

How many vertebrae bones?

Answer 2

26

Question 3

How many ribs? Pairs of ribs?

Answer 3

24 rib bones. 12 pairs

Question 4

How many bones in the skull?

Answer 4

22 bones + 6 ossicles (which are tiny bones) = 28 bones total in the skull

Question 5

Name all the main bones of the axial skeleton.

Answer 5

Skull
Vertebrae
Sternum
Ribs
Hyoid

Question 6

How many different parts are there in the Vertebral system?

Answer 6

5

Question 7

Name all the parts in the Vertebrae skeletal system.

Answer 7

Cervical vertebrae
Thoracic vertebrae
Lumbar Vertebrae
Sacrum
Coccyx

Question 8

How many parts of the Cervical, thoracic, and/or lumbar vertebrae should you know?

Answer 8

7 parts

Question 9

Name the parts of the Cervical, thoracic, and/or lumbar vertebrae should you know?

Answer 9

Vertebral foramen
Body
Transverse processes
Spinous processes
Superior articular process & facet
Inferior articular process & facet
Intervertebral foramen

Question 10

What is the total number of cervical vertebrae?

Answer 10

7 total

Question 11

Name the two types of cervical vertebrae.

Answer 11

C1: Atlas
C2: Axis

Question 12

What is so special about the C1: Atlas vertebrae in the cervical vertebral system?

Answer 12

It does not have a body

Question 13

What is so special about the C2: Axis vertebrae in the cervical vertebral system?

Answer 13

It has a “dens”.

Question 14

What is another name for the dens of the C2: Axis vertebrae of the cervical vertebral system?

Answer 14

odontoid process

Question 15

What is an odontoid process?

Answer 15

Another name for the dens of the C2: Axis vertebrae of the cervical vertebral system.

Question 16

What is unique about the cervical vertebrae?

Answer 16

They have transverse foramina, which are not found on any other vertebrae.

Question 17

What is the total number of Thoracic vertebrae?

Answer 17

12 total

Question 18

What do the thoracic vertebrae look like?

Answer 18

Giraffe head

Question 19

What is unique about the thoracic vertebrae?

Answer 19

They have Costal facets, which are not found on any other vertebrae.

Question 20

What is the purpose of costal facets?

Answer 20

They articulate with ribs.

Question 21

What vertebrae have costal facets?

Answer 21

Thoracic vertebrae.

Question 22

Where are costal facets located on thoracic vertebrae?

Answer 22

They are located on the bodies and transverse process of most of the thoracic vertebrae.

Question 23

What is the total number of lumbar vertebrae?

Answer 23

5 total

Question 24

What do lumbar vertebrae look like?

Answer 24

A moose head.

Question 25

Sacrum is formed by?

Answer 25

"5 fused together..."

Question 26

What part of the sacrum must we know?

Answer 26

Auricular surfaces.

Question 27

What do the auricular surfaces do?

Answer 27

Articulate with the coxae.

Question 28

Coccyx is formed by?

Answer 28

"4 plus/minus fused together..."

Question 29

Where are the ribs attached?

Answer 29

Attach to sternum by costal cartilage.

Question 30

How do you tell a right rib from a left rib?

Answer 30

?

Question 31

What is a true rib?

Answer 31

?

Question 32

What is a false rib?

Answer 32

?

Question 33

What is a false floating rib?

Answer 33

?

Question 34

How many parts of the rib must we know?

Answer 34

Know 6 parts

Question 35

What parts of each rib must we know?

Answer 35

``` Head Articular facets Neck Tubercle Costal groove Sternal End ```

Question 36

What do the articular facets of the ribs do?

Answer 36

they articulate with the thoracic vertebrae

Question 37

How does the sternum attach to the ribs?

Answer 37

attach to ribs via costal cartilage

Question 38

What is the sternum made up of?

Answer 38

3 bones: Manubrium Body Xiphoid process

Question 39

Define axial skeleton.

Answer 39

The part of the skeleton that includes the skull, vertebrae, sternum, ribs, and hyoid. Axial skeleton has a total of 80 bones.

Question 40

Define appendicular skeleton

Answer 40

?

Question 41

Whats the difference between the pectoral girdle and the pelvic girdle?

Answer 41

?

Question 42

What makes up the upper extremity?

Answer 42

?

Question 43

What makes up the lower extremity?

Answer 43

?

Question 44

What part of a rib articulates with the transverse process of a vertebra?

Answer 44

tubercle

Question 45

What is the most inferior portion of the sternum?

Answer 45

xiphoid

Question 46

What two features do cervical vertebrae have that no other vertebrae have?

Answer 46

The transverse foramina - the left and the right.

Question 47

What is the name of the superior portion of the sternum?

Answer 47

The manubrium.

Question 48

The superior articular process of a vertebra articulates with what specific structure?

Answer 48

The superior articular process of a vertebrae "articulates with the inferior facet on the inferior process on the superior vertebra".

Question 49

How many lumbar vertebrae are in the human body?

Answer 49

five

Question 50

Name the second cervical vertebrae.

Answer 50

Axis

Question 51

Does the hyoid bone have any solid bony attachments?

Answer 51

no, its attached by muscles.

Question 52

What is a rib that attaches to the sternum by the cartilage of another rib?

Answer 52

A false rib. These ribs (8-12) are also called vertebrochondral ribs.