Skeletal System

Question 1

This continues to grow, remodel and repair itself

Answer 1

Bone tissue

Question 2

Bone tissue contributes to homeostasis by:

1. Providing _______________
2. Producing _______________ and
3. Storing ________________

Answer 2

1. Support and protection
2. Blood cells
3. Minerals and triglycerides

Question 3

The construction of new bone tissue and breaking down of old bone tissue

Answer 3

Remodeling

Question 4

The study of bone structure and treatment of bone disorder

Answer 4

Osteology

Question 5

Bone tissue makes up about ___% of the human body weight

Answer 5

18

Question 6

6 basic functions of bone and skeletal system:

Answer 6

1. Support
2. Protection
3. Assistance in movement
4. Mineral homeostasis (storage and release)
5. Blood cell production
6. Triglyceride storage

Question 7

Bone tissue stores about ___% of the body’s calcium

Answer 7

99

Question 8

___1___ is the production of RBCs, WBCs, and platelets by ___2___

Answer 8

1. Hemopoiesis

2. Red bone marrow

Question 9

T/F

In a newborn, ALL bone marrow is RED

Answer 9

T

Question 10

Yellow bone marrow consists mainly of ______________ which stores triglycerides.

Answer 10

Adipose cells

Question 11

2 principal divisions of skeleton

Answer 11

Axial

Appendicular

Question 12

Consists of bones arranged along the LONGITUDINAL AXIS

Answer 12

Axial skeleton

Question 13

Axial: ___ bones
Appendicular: ___ bones

Answer 13

80

126

Question 14

Components of the Axial Skeleton

Answer 14

1. Skull
2. Hyoid bone
3. Auditory ossicles
4. Vertebral column
5. Thorax

Question 15

Components of appendicular skeleton

Answer 15

1. Pectoral (shoulder) girdle
2. Bones of the upper limbs
3. Pelvic (hip) girdle
4. Bones of the lower limbs

Question 16

Structure of Bones

Answer 16

1. Diaphysis
2. Epiphysis
3. Metaphysis
4. Articular cartilage
5. Periosteum
6. Medullary cavity
7. Endosteum

Question 17

1. A layer of HYALINE CARTILAGE that allows bone growth in LENGTH
2. Tough sheath of DENSE IRREGULAR CONNECTIVE TISSUE that enables bone growth in DIAMETER/THICKNESS

Answer 17

1. Epiphyseal plate

2. Periosteum

Question 18

Reduces friction and absorbs shock at freely movable joints

Answer 18

Articular cartilage

Question 19

Articular cartilage lacks
1.
2.
that’s why repair of damage is limited

Answer 19

1. Perichondrium

2. Blood vessels

Question 20

Layer of dense irregular connective tissue that surrounds the cartilage of a DEVELOPING BONE

Answer 20

Perichondrium

Question 21

T/F

Perichondrium can be found in all 3 types of cartilage

Answer 21

F

Only in elastic and hyaline cartilage BUT NOT NI FIBROCARTILAGE

Question 22

Once vascularized, perichondrium becomes ______________

Answer 22

Periosteum

Question 23

OUTER LAYER

1. Perichondrium: __________
2. Periosteum: __________

Answer 23

1. Chondrogenic layer

2. Osteogenic layer

Question 24

INNER LAYER

1. Perichondrium: __________
2. Periosteum: __________

Answer 24

Both FIBROUS

Question 25

In Bone Marrow Needle Biopsy, marrow is removed from the bones such as

Answer 25

Pelvis or

Breastbone

Question 26

Minimizes the weight of the bone by reducing the DENSE BONY MATERIAL where it is least needed

Answer 26

Medullary cavity

Question 27

T/F

Medullary cavity does not have blood vessels

Answer 27

F

Does have

Question 28

Endosteum contains a single layer of _____1_____ and a small amount of _____2_____

Answer 28

1. Bone-forming cells

2. Connective tissue