Lab 8 Skeletal System

Question 1

how many bones in ribs

Answer 1

24

Question 2

how many bones in vertebrae

Answer 2

26

Question 3

how many bones in skull

Answer 3

28

Question 4

immovable joint

Answer 4

has fibrous connective tissue joining the bone

Question 5

slightly moveable joint

Answer 5

has fibrous joints OR cartilaginous with articular cartilage joining the bones

Question 6

freely moveable joints

Answer 6

have a membrane and articular cartilege

- synovial

Question 7

Flexion

Answer 7

bending parts at a joint so that the angle between them decreases and the parts come closer together (bending the lower limb at the knee)

Question 8

Extension

Answer 8

straightening parts at a joint so that the angle between them increases and the parts move far- ther apart (straightening the lower limb at the knee) 


Question 9

Hyperextension

Answer 9

excess extension of parts at a joint, beyond the anatomical position (bending the head back beyond the upright position) 


Question 10

Abduction

Answer 10

moving a part away from the midline (lifting the upper limb horizontally to form a right angle with the side of the body) 


Question 11

Adduction

Answer 11

moving a part toward the midline (return- ing the upper limb from the horizontal position to the side of the body) 


Question 12

Rotation

Answer 12

moving a part around an axis (twisting the head from side to side). Medial rotation involves movement toward the midline, whereas lateral rota- tion involves movement in the opposite direction.

Question 13

Circumduction

Answer 13

moving a part so that its end follows a circular path (moving the finger in a circular motion without moving the hand) 


Question 14

Supination

Answer 14

turning the hand so the palm is upward or facing anteriorly (in anatomical position) 


Question 15

Pronation

Answer 15

turning the hand so the palm is downward or facing posteriorly (in anatomical position) 


Question 16

Eversion

Answer 16

turning the foot so the sole faces laterally 


Question 17

Inversion

Answer 17

turning the foot so the sole faces medially

Question 18

Protraction

Answer 18

moving a part forward (thrusting the chin forward) 


Question 19

Retraction

Answer 19

moving a part backward (pulling the chin backward) 


Question 20

Elevation

Answer 20

raising a part (shrugging the shoulders) 


Question 21

Depression

Answer 21

lowering a part (drooping the shoulders) 


Question 22

Depression

Answer 22

lowering a part (drooping the shoulders) 


Question 23

ball and socket joint

Answer 23

hips

Question 24

hinge joint

Answer 24

movement in only one plane

Question 25

gliding joint

Answer 25

sliding on surfaces

Question 26

combination joint

Answer 26

can rotate or go side to side (different types of movement)

Question 27

bone is made by

Answer 27

osteoblasts - secrete collagen fibers

Question 28

mature bone cells

Answer 28

osteocytes

Question 29

bone is broken down by

Answer 29

osteoclasts | - aid in bone reabsorption and turnover

Question 30

look at the skeleton

Answer 30

please

Question 31

purpose of bone

Answer 31

movement, protection, site of blood cell production, mineral storage

Question 32

basic structural unit

Answer 32

osteon

Question 33

osteon structure

Answer 33

center is the Haversian canal. has different veins and arteries - lamella surround it - have osteocytes - cannaliculi connects everything

Question 34

moveable joint types

Answer 34

ball and socket, hinge, gliding, combination

Question 35

aXIAL

Answer 35

SKULL, VERTEBRAE, RIBS

Question 36

appendicular

Answer 36

arm, shoulder, leg

Question 37

LOOK AT POWERPOINT OF SKULL

Answer 37

please see slide

Question 38

skull

Answer 38

has cranium and facial bones

Question 39

cranium

Answer 39

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

Question 40

facial bones

Answer 40

``` Nasal Vomer Zygomatic Maxilla Mandibular ```

Question 41

see skeleton for vertebral column

Answer 41

note which are fused together!! see ppt!

Question 42

Cervical column

Answer 42

have holes (foramen) for the vertebral arteries going into the brain 7

Question 43

thoracic column

Answer 43

articulate with the ribs (protect thoracic and abdominal organs) 12

Question 44

lumbar

Answer 44

thicker to bear weight of the body 5

Question 45

sacral

Answer 45

fused to form dorsal aspect of hips and triangular to distribute weight to the legs 5

Question 46

coccyx

Answer 46

remnant of the post anal tail 4

Question 47

make sure you know how to identify broken away bones

Answer 47

disarticulated"

Question 48

radius is

Answer 48

rad thumbs up

Question 49

pelvic girdle

Answer 49

Coxal Bone: Illium (rest your hands on it) Ischium (sit on it) Pubic

Question 50

bones and bones

Answer 50

ligaments

Question 51

bones and muscles

Answer 51

tendons