Unit 12,13,14 Osteology, Arthrology, Embryology of ANT. Thorax (final exam)

Question 1

What vertebral levels correspond to the position of the manubrium sterni?

Answer 1

T3-T4

Question 2

Which ribs will articulate with the manubrium sterni?

Answer 2

First and Second

Question 3

What vertebral levels correspond to the position of the corpus sterni?

Answer 3

T5-T9

Question 4

How many sternabrae form the corpus sterni?

Answer 4

4 sternabrae

Question 5

What ribs will joint with the corpus sterni via costal cartilage?

Answer 5

ribs 2-7

Question 6

What feature of the corpus sterni is present in 4-7% of the population?

Answer 6

sternal foramen

Question 7

Which ribs are classified as typical, true, costa verae, and vertebrosternal ribs in the typical adult skeleton?

Answer 7

ribs 3-7

Question 8

Which ribs are classified as atypical, true, costa verae, and vertebrosternal ribs in the typical adult skeleton?

Answer 8

Ribs 1 and 2

Question 9

Which ribs are classified as typical, false, costa spuriae, and vertebrochondral ribs in the typical adult skeleton?

Answer 9

Ribs 8 and 9

Question 10

Which ribs are classified as atypical, false, costa spuriae, and vertebrochondral ribs in the typical adults skeleton?

Answer 10

Rib 10

Question 11

Which ribs are classified as atypical, false, costa spuriae, and vertebral ribs in the typical adult skeleton?

Answer 11

Ribs 11 and 12

Question 12

What joint classification is now given to the joint between the sternum, clavicle and first rib?

Answer 12

Synovial saddle (diarthrosis sellar) joint

Question 13

What ribs will participate in the sternocostal or sternochondral joint?

Answer 13

Ribs 1-7

Question 14

What is the classic and newer classification and of the first sternocostal or sternochondral joint?

Answer 14

Classic: Cartilaginous (amphiarthrosis) synchondrosis
Newer: Cartilaginous (amphiarthrosis) symphysis

Question 15

What is the classification of the 2-7th sternocostal or sternochondral joint?

Answer 15

Synovial plane (diarthrosis arthrodia)

Question 16

What is the classification of the 6-9th interchondral joint?

Answer 16

Synovial plane (diarthrosis arthrodia)

Question 17

What is the classification of the 5-6th or 9-10th interchondral joint?

Answer 17

Fibrous (amphiarthrosis) syndesmosis

Question 18

Which costal cartilages fail to form a joint at either sternal end?

Answer 18

11 and 12 costal cartilages

Question 19

What forms the manubriosternal joint?

Answer 19

Fibrocartilage layer attaches the manubrium sterni to the corpus sterni

Question 20

Which sternal joint will ossify by age 40?

Answer 20

Joint between corpus sterni and the xiphoid process

Question 21

In what part of the sternum will secondary center of ossification appear?

Answer 21

xiphoid process

Question 22

When does the xiphoid process first demonstrate a center of ossification?

Answer 22

during or after 3 years old

Question 23

In what part of the rib will primary centers of ossification appear?

Answer 23

body (corpus, shaft)

Question 24

In what parts of the rib will secondary centers of ossification appear?

Answer 24

Head
Articular surface of the tubercle
Non-articular surface of the tuberclce

Question 25

Which ribs will demonstrate primary centers of ossification for the body (corpus, shaft)?

Answer 25

All ribs, ribs 1-12

Question 26

Which ribs will demonstrate secondary ossification centers?

Answer 26

Ribs 1-10

Question 27

Which ribs lack secondary ossification centers?

Answer 27

Ribs 11 and 12