Unit 4: Introduction to Skeletal System

Question 1

Epiphysis

Answer 1

Ends of the bone

Question 2

Diaphysis

Answer 2

Shaft of the bone

Question 3

Medullary cavity

Answer 3

Area containing bone marrow

Question 4

Osteons

Answer 4

Center of a concentric canal meant to allow vascularization

Question 5

Skull

Answer 5

Cranial and facial bones

Question 6

Auditory Ossicles

Answer 6

Middle ear bones

Question 7

Hyphoid bone

Answer 7

Point of attachment for tongue and many neck muscles

Question 8

Vertebral column

Answer 8

Cervical, thoracic, lumbar, vertebrae, intervertebral discs, sacrum, coccyx

Question 9

Bony thorax

Answer 9

12 pairs of ribs, sternum, costal cartilage

Question 10

Upper extremities

Answer 10

Humerus, radius, ulna, carpals, metacarpals, phalanges

Question 10

Pelvic girdle

Answer 10

Coxal bones (Hips)

Question 10

Pectoral girdle

Answer 10

Clavicle and scapula

Question 11

Projections

Answer 11

Sites of muscle and ligament attachment. Helps form joints

Question 12

Cartilage

Answer 12

-Aneural
-Avascular
-Resilient
-Mostly composed of collagenous ECM and water
-Covered by perichondrium
-Chrondrocytes

Question 12

Depressions and Openings

Answer 12

For passage of vessels and nerves

Question 13

Hyaline cartilage

Answer 13

Most abundant

Question 13

Elastic cartilage

Answer 13

Flexible cartilage (Rare, ear and tongue)

Question 14

Fibrocartilage

Answer 14

High tensile strength and shock absorption