Deck 13: Skeletal and Muscular Systems

Question 1

________ Replaced by a synovial joint

A)A
B)B
C)C
D)D
E)E

Answer 1

E
The ribs are connected to the costal processes of thoracic vertebrae at costovertebral joints;these are the plain type of synovial joint.As the ribs and vertebrae ossify,joints develop between the tubercles of the ribs and the transverse processes of the vertebrae.

Question 2

________ Form the tongue muscles

A)A
B)B
C)C
D)D
E)E

Answer 2

B
The first pair of four occipital myotomes degenerate.Myoblasts from the remaining three myotomes migrate from the occipital region to the floor of the pharynx and form the striated muscles of the tongue,with the exception of the palatoglossus muscle.The hypoglossal nerve (CN XII)supplies all the muscles of the tongue except for the palatoglossus muscle,which is supplied by the pharyngeal branch of the vagus nerve (CN X).

Question 3

________ Disappears during childhood

A)A
B)B
C)C
D)D
E)E

Answer 3

B
The vertebral arch during infancy and early childhood is separated from the bone of the centrum by persistent bilateral zones of cartilage (neurocentral joints).These two lateral zones are ossified during the fifth and sixth years.

Question 4

________ Normally regress during the eighth week

A)A
B)B
C)C
D)D
E)E

Question 5

________ Neurocentral joint

A)A
B)B
C)C
D)D
E)E

Question 6

________ Partly within the pharyngeal arches

A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium

Question 7

________ Forms in the maxillary prominence of the first pharyngeal arch

A)A
B)B
C)C
D)D
E)E

Question 8

________ Forms in the mandibular prominence of the first pharyngeal arch

A)A
B)B
C)C
D)D
E)E

Question 9

________ Part of the cartilaginous neurocranium

A)A
B)B
C)C
D)D
E)E

Question 10

________ Its cartilage is ossified during infancy

A)A
B)B
C)C
D)D
E)E

Question 11

________ Articulates with the centrum

A)A
B)B
C)C
D)D
E)E

Question 12

________ Closes during the second year

A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium

Question 13

________ Growth of long bones

A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium

Question 14

________ Primary ossification center

A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium

Question 15

________ Part of the cartilaginous viscerocranium

A)A
B)B
C)C
D)D
E)E

Question 16

________ Part of the membranous neurocranium

A)A
B)B
C)C
D)D
E)E

Question 17

________ Styloid process

A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium

Question 18

________ Associated with the first pharyngeal arch cartilage

A)A
B)B
C)C
D)D
E)E

Question 19

________ Forms by intramembranous ossification

A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium

Question 20

________ Centrum

A)A
B)B
C)C
D)D
E)E

Question 21

________ Muscles originate from somites

A)A
B)B
C)C
D)D
E)E

Question 22

________ Give rise to the muscles of mastication

A)A
B)B
C)C
D)D
E)E

Question 23

________ Form the scalene muscles

A)A
B)B
C)C
D)D
E)E