Muscular-Skeletal System

Question 1

Functions of Bones

Answer 1

1. Support
2. Protection
3. Storage (fat and minerals)
4. Movement
5. Blood cell formation

Question 2

Function of Muscles

Answer 2

1. Movement
2. Stability
3. Generates heat
4. Protects organs
5. Regulates passage of substances

Question 3

Bone Fractures

Answer 3

1. Comminuted
2. Compression
3. Depressed
4. Impacted
5. Spiral
6. Greenstick

Question 4

Comminuted (bone fracture)

Answer 4

Breaks into many fragments (common in older people)

Question 5

Compressed (bone fracture)

Answer 5

The bone is crushed completely (common in older people)

Question 6

Depression (done fracture)

Answer 6

Broken bone portion is pushed inward/downward (typical in skull fractures)

Question 7

Impacted (bone fracture)

Answer 7

Broken bone ends are forced into each other (common when someone tries to break a fall with out stretched arms)

Question 8

Spiral (bone fracture)

Answer 8

Break occurs when twisting forces are applied to bone (common sports injury)

Question 9

Greenstick (bone fracture)

Answer 9

Bone breaks incompletely (common in children who have flexible bones)

Question 10

Simple (bones fracture)

Answer 10

Closed; fractures do NOT penetrate the skin

Question 11

Compound (bone fractures)

Answer 11

Open; fractures DO penetrate the skin

Question 12

Skeletal Muscles

Answer 12

• voluntary
• attached to bones
• on the face they are attached to skin
• responds quickly but tires easily
• largest of all types

Question 13

Smooth Muscles

Answer 13

-involuntary
-walls of hollow organs (NOT the heart)
Ex. Bladder and stomach

Question 14

Cardiac Muscles

Answer 14

• involuntary
• found in the walls of the heart
• contractions cause chambers in the heart to become smaller