Unit 1- Quiz 2

Question 1

What are joints

Answer 1

Where 2 or more bones connect
They make it possible to move

Question 2

How are joints classified

Answer 2

They are classified according to: Structure (what they are made of), functions (movement they permit)

Question 3

Fibrous Joint

Answer 3

Immovable (ex. Structures of the skull)

Question 4

Cartilaginous Joints

Answer 4

Slightly moveable ( Ex. Lower Vertebrae)

Question 5

Functions of the bones

Answer 5

1. Support and protection: Gives shape to the structure (feet bones, legs, pelvis and spine all support the body)
2. Lever Action: Limbs are over, bones function together as levers
3. Blood Cell Formation: Forms red cells, white cells and platelets
4. Storage of inorganic salt: Ex. calcium, other salts are needed for metabolic processes

Question 6

Long bones

Answer 6

Mostly located in the appendicular skeleton and includes bones in the lower limbs (tibia, fibula)
-Has a shaft and 2 ends
-Ex Humerus

Question 7

Short Bones

Answer 7

Roughly cube-shaped and spongy with vertical and horizontal dimensions approximately equal
-Ex Carpals

Question 8

Flat bones

Answer 8

Protect internal organs , ex. Bones in the skull

Question 9

Appendicular upper

Answer 9

126 bones
Upper extremities:
- Scapula (2)
-Clavicle (2)
-Humerus (2)
-Ulna (2)
-Radius (2)
- Carpals (16)
-Metacarpals (10)
- Phalanges (28)

Question 10

Appendicular (lower)

Answer 10

62 Bones
Lower Extremities
-Innominate/ oscoxate (2)
-Femur (2)
-Tibia (2)
-Fibula (2)
-Talus’ (14)
-metatarsals (10)
-Phalanges (28)
-Patella (2)

Question 11

Axial

Answer 11

80 Bones
-Skull (28): Cranium (8), face (14), inside ear (6)
-vertebral column (26)
-Cervical (7)
-Therasic (17)
-Lumbar (5)
-Sagittal (1)
-coccyx (1)
-Hyoid bone (1) - Only bone that doesn’t articulate
-Sternum + ribs (25)

Question 12

Synovial Joints

Answer 12

Freely Moveable (Ex. Shoulder, hip , knee)

Question 13

Irregular

Answer 13

Vary in shape and structure so they cant fit into any other category
Ex. coccyx

Question 14

Sesamoid bones

Answer 14

a small bone commonly found embedded within a muscle or tendon near joint surfaces
Ex Patella

Question 15

Wormian

Answer 15

AKA Intrasutral bones
Small bones or bone island found between cranial sutures of the bones of the skull vault.