Seer Training Modules: Intro To The Human Body - Skeletal System

Front 1

When blood calcium levels decrease below normal, calcium is released from the _______so that there will be an adequate supply for metabolic needs.

Back 1

bones

Front 2

When blood calcium levels are increased, the excess calcium is stored in the

Back 2

bone matrix

Front 3

the formation of blood cells, which mostly takes place in the red marrow of the bones.

Back 3

Hematopoiesis

Front 4

There are two types of bone tissue:

Back 4

spongy and compact

Front 5

There are three types of cells that contribute to bone homeostasis

Back 5

Osteoblasts
osteoclasts
osteocytes

Front 6

bone-forming cell

Back 6

Osteoblasts

Front 7

resorb or break down bone

Back 7

osteoclasts

Front 8

mature bone cells

Back 8

osteocytes

Front 9

consists of closely packed osteons or haversian systems

Back 9

Compact bone

Front 10

consists of a central canal called the osteonic (haversian) canal,

Back 10

osteonic (haversian) canal

Front 11

The osteonic (haversian) canal is surrounded by

Back 11

concentric rings (lamellae) of matrix

Front 12

Between the rings of matrix, the bone cells (osteocytes) are located in spaces called

Back 12

lacunae

Front 13

Small channels (canaliculi) radiate from the ______to the osteonic (haversian) canal to provide passageways through the hard matrix.

Back 13

lacunae

Front 14

bones can be grouped in two divisions: .

Back 14

axial skeleton and appendicular skeleton

Front 15

Cranial Bones consist of:

Back 15

Parietal (2)
Temporal (2)
Frontal (1)
Occipital (1)
Ethmoid (1)
Sphenoid (1)

Front 16

Facial Bones consist of:

Back 16

Maxilla (2)
Zygomatic (2)
Mandible (1)
Nasal (2)
Platine (2)
Inferior nasal concha (2)
Lacrimal (2)
Vomer (1)

Front 17

Auditory Ossicles consist of:

Back 17

Malleus (2)
Incus (2)
Stapes (2)

Front 18

Vertebral Column consists of these bones:

Back 18

Cervical vertebrae (7)
Thoracic vertebrae (12)
Lumbar vertebrae (5)
Sacrum (1)
Coccyx (1)

Front 19

The thoracic cage consists of:

Back 19

Sternum (1)
Ribs (24)

Front 20

The Appendicular Skeleton consists of how many bones?

Back 20

126

Front 21

Pectoral girdles consist of:

Back 21

Clavicle (2)
Scapula (2)

Front 22

Upper extremity bones consists of:

Back 22

Humerus (2)
Radius (2)
Ulna (2)
Carpals (16)
Metacarpals (10)
Phalanges (28)

Front 23

Pelvic Girdle consists of:

Back 23

Coxal, innominate, or hip bones (2)

Front 24

Lower Extremity bones consist of:

Back 24

Femur (2)
Tibia (2)
Fibula (2)
Patella (2)
Tarsals (14)
Metatarsals (10)
Phalanges (28)

Front 25

A joint where two bones come together

Back 25

articulation

Front 26

there are three types of joints:

Back 26

immovable, slightly movable and freely movable.

Front 27

In these joints, the bones come in very close contact and are separated only by a thin layer of fibrous connective tissue.

Back 27

Synarthroses

Front 28

The osteonic canals contain

Back 28

blood vessels that are parallel to the long axis of the bone

Front 29

is lighter and less dense than compact bone

Back 29

Spongy (cancellous) bone

Front 30

Spongy bone consists of

Back 30

plates (trabeculae) and bars of bone adjacent to small, irregular cavities that contain red bone marrow

Front 31

The canaliculi connect to the adjacent cavities, instead of a central haversian canal, to receive

Back 31

their blood supply

Front 32

follow the lines of stress and can realign if the direction of stress changes.

Back 32

trabeculae of spongy bone

Front 33

often used synonymously to indicate the process of bone formation

Back 33

osteogenesis and ossification

Front 34

There are two types of ossification:

Back 34

intramembranous and endochondral

Front 35

involves the replacement of sheet-like connective tissue membranes with bony tissue

Back 35

Intramembranous ossification

Front 36

involves the replacement of hyaline cartilage with bony tissue

Back 36

Endochondral ossification

Front 37

A membrane around the surface of cartilage.

Back 37

perichondrium

Front 38

The four principal types of bones are

Back 38

long, short, flat and irregular

Front 39

are roughly cube shaped with vertical and horizontal dimensions approximately equal.

Back 39

Short bones

Front 40

are thin, flattened, and usually curved.

Back 40

flat bones

Front 41

What are two types of irregular bone?

Back 41

some bones in skull and vertebrae

Front 42

The adult human skeleton usually consists of 206 named bones. These bones can be grouped in two divisions:

Back 42

axial skeleton and appendicular skeleton

Front 43

Name the cranial bones:

Back 43

Parietal (2)
Temporal (2)
Frontal (1)
Occipital (1)
Ethmoid (1)
Sphenoid (1)

Front 44

Name the facial bones:

Back 44

Maxilla (2)
Zygomatic (2)
Mandible (1)
Nasal (2)
Platine (2)
Inferior nasal concha (2)
Lacrimal (2)
Vomer (1)

Front 45

Name the auditory ossicles:

Back 45

Malleus (2)
Incus (2)
Stapes (2)

Front 46

What are the bones of the vertebral column?

Back 46

Cervical vertebrae (7)
Thoracic vertebrae (12)
Lumbar vertebrae (5)
Sacrum (1)
Coccyx (1)

Front 47

What are the bones of the thoracic cage?

Back 47

Sternum (1)
Ribs (24)

Front 48

What are the bones in the pectoral girdles?

Back 48

Clavicle (2)
Scapula (2)

Front 49

What are the bones in the upper extremity?

Back 49

Humerus (2)
Radius (2)
Ulna (2)
Carpals (16)
Metacarpals (10)
Phalanges (28)

Front 50

Name the bones of the pelvic girdle?

Back 50

Coxal, innominate, or hip bones (2)