Skeleton lecture notes

Question 1

What are the 2 divisions of the Skeleton?

Answer 1

Appendicular and Axial

Question 2

What does the Appendicular Skeleton consist of?

Answer 2

Pectoral girdle and upper appendages

arms and legs

Question 3

What does the Axial Skeleton consist of?

Answer 3

Skull, Vertebral, and Thoracic cage

central axis of the body/up and down spine

Question 4

What are the three fossas inside the cranium?

Answer 4

Anterior Cranial Fossa, Middle Cranial Fossa, and the Posterior Cranial Fossa

Question 5

Anterior Cranial Fossa

Answer 5

Base of frontal bone (roof of orbit) to lesser wing of the sphenoid. Its the area for the frontal lobes of the cerebral hemispheres

Question 6

Middle Cranial Fossa

Answer 6

From the lesser wing of the Sphenoid to the Petrous part of the temporal bone. Its the area for the temporal lobes

Question 7

Posterior Cranial Fossa

Answer 7

From the Petrous part of the temporal bone to the internal posterior surface of the skull.

Question 8

The Skull consists of what 2 bones?

Answer 8

Facial and Cranial bones

Question 9

Cranial bones

Answer 9

enclosure and protect the brain (surround the brain)

Question 10

Facial bones

Answer 10

do not come in contact with the brain, provide, and framework for the face and support the teeth

Question 11

Fissure

Answer 11

crack; narrow, slitlike opening through a bone (opening and space)

Question 12

Foramen

Answer 12

hole; rounded passageway through a bone (opening and space)

Question 13

Articulating surfaces

Answer 13

joint to joint (bones that come together)

Question 14

Sinus

Answer 14

cavity or hollow space in a bone (opening and space)

Question 15

Condyle

Answer 15

large, smooth, rounded articulating oval structure (articulating surface)

Question 16

Facet

Answer 16

small, flat shallow articulating surface

Question 17

Head

Answer 17

Prominent, rounded epiphysis (articulating surface)

Question 18

Trochlea

Answer 18

smooth, grooved, pulley-like articular process (articulating surface)

Question 19

Fossa

Answer 19

Flattened or shallow depression

Question 20

Sulcus

Answer 20

narrow groove (depression)

Question 21

Alveolus

Answer 21

Deep pit or socket in the maxillae or mandible (depression)

Question 22

Crest

Answer 22

narrow, prominent, ridgelike projection (projections for tendon and ligament attachment)

Question 23

Epicondyle

Answer 23

projection adjacent to a condyle (projections for tendon and ligament attachment)

Question 24

Line

Answer 24

low ridge (projections for tendon and ligament attachment)

Question 25

Process

Answer 25

any marked bony prominence (projections for tendon and ligament attachment)

Question 26

Ramus

Answer 26

Angular extension of a bone relative to the rest of the structure (projections for tendon and ligament attachment)

Question 27

Spine

Answer 27

pointed, slender process (projections for tendon and ligament attachment)

Question 28

Trochanter

Answer 28

massive, rough projection found only on the femur (projections for tendon and ligament attachment)

Question 29

Tubercle

Answer 29

small, round projection (projections for tendon and ligament attachment)

Question 30

Tuberosity

Answer 30

large, rough projection (projections for tendon and ligament attachment)