Lab# 6 Skeletal system

Question 0

The Axial Skeleton

Answer 0

those bones that lie around the body’s center of gravity

Question 1

Skeleton

Answer 1

The body’s frame work

Question 2

Appendicular Skelton

Answer 2

Bones of the limbs and appendages

Question 3

Articular Cartilages

Answer 3

cover the bone ends at moveable joints ie Hyaline cartilages

Question 4

Costal Cartilages

Answer 4

Found connecting the ribs to the sternum (breast bone) (Hyaline)

Question 5

Laryngeal Cartilages

Answer 5

largely constructs the larynx (voice box) (Hyaline)

Question 6

Tracheal and Bronchial Cartilages

Answer 6

Reinforce other passageways of the respiratory system (Hyaline)

Question 7

Nasal Cartilages

Answer 7

support the external nose (Hyaline)

Question 8

Intervertebral discs

Answer 8

Separate and Cushion bones of the spine (vertebrae) (Fibrocartilage’s) also the pubic symphysis

Question 9

Meniscus

Answer 9

pad like cartilage in knee joint fibrocartilage sandwiched between two layers of Hyaline cartilage

Question 10

Skull

Answer 10

The bones of the head excluding the face

Question 11

Thoracic cage

Answer 11

Ribs, sternum, vertebrae, costa cartilage

Question 12

Vertebral column

Answer 12

The series of vertebra that extend from the cranium to the coccyx providing support and forming a flexible bony case for spinal cord

Question 13

Bones of Pectoral Girdle

Answer 13

Clavicle, Scapula

Question 14

Upper Limb

Answer 14

humerus, Radius, ulna, Carpals, phalanges, Metacarpals

Question 15

Bones of Pelvic Girdle

Answer 15

Ilium,Pubis, Ischium

Question 16

Lower Limb

Answer 16

Femur, Patella, Tibia, Fibula, Tarsals, Talus, Metatarsals, Phalanges, Calcaneus

Question 17

Hyaline Cartilage

Answer 17

Provides sturdy support with some resilience or give most skeletal cartilages are composed of this

Question 18

Elastic Cartilages

Answer 18

much more flexible than Hyaline and it tolerates repeated bending
External ear and epiglottis

Question 19

Fibrocartilage

Answer 19

consists of rows of chondrocytes alternating with rows of thick collagen fibers has great tensile strength and with stands heavy compression found in intervertebral discs and knee joint

Question 20

compact bone

Answer 20

looks smooth and homogeneous out side surface of all 206 bones

Question 21

spongy bone or cacellous

Answer 21

is composed of small trabeculae (bars) of bone and lots of open space

Question 22

Long bones

Answer 22

longer than they are wide have shaft with heads on either end

Question 23

Short bones

Answer 23

typically cubed shaped contain more spongy bone than compact bone

Question 24

Flat bones

Answer 24

are generally thin with two wafer like layers of compact bone with spongy bone in between. many flat bones are curved

Question 25

irregular bones

Answer 25

bones that do not fit into the other classifications Pelvic, vertebrae

Question 26

sesamoid bones

Answer 26

are special types of short bones formed in tendons the patella is a sesamoid bone

Question 27

Wormian bones or sutural

Answer 27

are tiny bones between cranial bones not included in the 206

Question 28

Bone markings

Answer 28

reveal where bones form joint with other bones and where muscle and tendon and ligaments attached and where blood vessels and nerves passed

Question 29

Projections

Answer 29

Processes that grow out from the bone

Question 30

Depresssions

Answer 30

Cavities that indent the bone

Question 31

Condyle

Answer 31

Rounded articular projection joint projection

Question 32

Head

Answer 32

bony expansion on a narrow neck joint projection

Question 33

Facet

Answer 33

smooth nearly flat articular surface joint projection

Question 34

Ramus

Answer 34

Armlike bar of bone joint projection

Question 35

crest

Answer 35

Narrow ridge of bone ligament/tendon

Question 36

Line

Answer 36

smaller than crest ligament/tendon

Question 37

Epicondyle

Answer 37

Raised area on or above a condyle ligament/tendon

Question 38

Tubercle

Answer 38

small rounded projection tendon atachment

Question 39

tubeosity

Answer 39

large rounded or roughened projection ligament attachment

Question 40

Trochanter

Answer 40

very large, blunt projection (only on Femur)

Question 41

Spine

Answer 41

sharp, pointed projection

Question 42

Meatus

Answer 42

Depression Canal or tube allowed blood vessels or nerves to pass

Question 43

Fossa

Answer 43

depression shallow basin allowed for nerves blood vessels

Question 44

Fissure

Answer 44

narrow slit like opening allowed for blood and nerves

Question 45

Sinus

Answer 45

cavity within a bone filled with air and lined with mucous membranes

Question 46

Foramen

Answer 46

Round or oval opening | Foramen Magnum opening at base of skull

Question 47

Sulcus, Groove or Furrow

Answer 47

a shallow depression

Question 48

Cranium

Answer 48

bones that protect the brain

Question 49

Facial bones

Answer 49

form eye orbit and allow for muscle attachment

Question 50

Mandible

Answer 50

has only freely movable joint in skull all other bones attached by sutures