Skeletal system vocabulary

Question 1

Osteon

Answer 1

basic functional unit of compact bone

Question 2

Central canal

Answer 2

contains one or more blood vessels

Question 3

Perforating canal

Answer 3

contains blood vessels

Question 4

Lamellae

Answer 4

narrow sheets of calcified matrix

Question 5

Osteocytes

Answer 5

bone cells

Question 6

Lacunae

Answer 6

small pockets containing osteocytes

Question 7

Canaliculi

Answer 7

small channels connecting lacunae to blood vessels

Question 8

Process

Answer 8

Any projection or bump

Question 9

Ramus

Answer 9

An extension of a bone making an angle with the rest of the structure

Question 10

Trochanter

Answer 10

A large, rough projection

Question 11

Tuberosity

Answer 11

A smaller, rough projection

Question 12

Crest

Answer 12

A prominent ridge

Question 13

Line

Answer 13

A low ridge

Question 14

Spine

Answer 14

A pointed or narrow process

Question 15

Head

Answer 15

The expanded articular end of an epiphysis

Question 16

Neck

Answer 16

A narrow connection between epiphysis and diaphysis

Question 17

Condyle

Answer 17

A smooth, rounded articular process

Question 18

Trochlea

Answer 18

A smooth, grooved articular process shaped like a pulley

Question 19

Facet

Answer 19

A small flat articular surface

Question 20

Fossa

Answer 20

A shallow depression

Question 21

Sulcus

Answer 21

A narrow groove

Question 22

Foramen

Answer 22

A rounded passageway for blood vessels or nerves

Question 23

Canal

Answer 23

A duct or channel

Question 24

Meatus

Answer 24

A passageway through a bone

Question 25

Fissure

Answer 25

An elongated cleft or slit

Question 26

Sinus

Answer 26

A chamber within a bone, normally filled with air

Question 27

diaphysis

Answer 27

extended tubular shaft

Question 28

epiphysis

Answer 28

expanded area at each end of the long bone

Question 29

Classes of bones by shape

Answer 29

sutural bones, irregular bones, short bones, long bones, flat bones, sesamoid bones

Question 30

5 primary functions of skeletal system

Answer 30

1. Support
2. Storage of minerals and lipids
3. Blood cell production
4. Protection
5. Leverage.

Question 31

Epicondyle

Answer 31

a projection above a condyle

Question 32

Tubercle

Answer 32

a small rounded process

Question 33

Alveolus

Answer 33

a deep pit or socket

Question 34

Fovea

Answer 34

A small pit or depression

Question 35

Sulcus

Answer 35

A groove in a bone