Skeletal System

Question 1

Axial skeleton

Answer 1

80 bones (central skeleton)

Question 2

Appendicular skeleton

Answer 2

126 bones (27 of then in the hand & wrist)

Question 3

Long bones

Answer 3

Femur, tibia, radius - length exceeds diameter

Question 4

Short bones

Answer 4

Wrist & ankle -

Question 5

Flat bones

Answer 5

Skull, clavicle, mandible, scapula - protects underlying organs

Question 6

Irregular bones

Answer 6

Vertebrae - fulfill specific functions

Question 7

Sesamoid bones

Answer 7

Oval, pea-like, found in tendons - function as a pulley, includes patella

Question 8

Bone tissue - cortical

Answer 8

Dense, solid bone - forms outer shell

Question 9

Bone tissue-Trabecular

Answer 9

Spongy, non dense - inner scaffolding

Question 10

Process

Answer 10

Bony projections

Question 11

Fossa

Answer 11

Hollow

Question 12

Condyle

Answer 12

Enlargement for articular surface

Question 13

Tubercular

Answer 13

Bump for tendon attatchment

Question 14

Axial skeleton

Answer 14

Skull, spinal column, vertebrae, sacrum, coccyx, thoracic cage

Question 15

Skull

Answer 15

22 bones

Question 16

Spinal column

Answer 16

26 bones

Question 17

Cervical vertebrae

Answer 17

Neck - 7

Question 18

Thoracic vertebrae

Answer 18

Chest - 12 - pair with ribs

Question 19

Lumbar vertebrae

Answer 19

Lower back - 5

Question 20

Sacrum

Answer 20

1 (5 fused bones)

Question 21

Coccyx

Answer 21

1 (4 fused bones) - tailbone

Question 22

Thoracic cage

Answer 22

12 pairs of ribs

Question 23

Vertebrae function

Answer 23

Provides strong, flexible support for the body - protects spinal cord & nerves - absorbs shock through intervertebral discs

Question 24

Sternum

Answer 24

3 fused bones - manibrium, body, xiphoid process —- the clavicles & 10 pairs of ribs join to the sternum

Question 25

Appendicular skeleton

Answer 25

The pectoral girdle (chest), the upper limbs, the pelvic girdle (hips), the lower limbs

Question 26

Clavicle

Answer 26

Medial end articulates with sternum - lateral end articulates with scapula

Question 27

Carpals

Answer 27

Wrist 8x2 (irregular bones) - scaphoid=under thumb & lunate

Question 28

Metacarpals

Answer 28

Hand 5x2 (back of hand, under fingers) #1 thumb

Question 29

Phalanges

Answer 29

14 bones - proximal, middle, distal

Question 30

The pelvic girdle

Answer 30

Ilium + pubis + ischium = os coax (x2)

Question 31

Sacrum

Answer 31

Skeletal attachment point for the pelvic girdle to the rest of the body

Question 32

Ischial tuberosity

Answer 32

Male - 90 or less female- 100 or more