Chapter 4.3, Problem 28E

(a)

To determine

To find fraction of body’s bones in axial system.

Answer to Problem 28E

  $\frac{40}{103}$

Explanation of Solution

Given information: Axial system has 80 bones and Appendicular system has 126 bones.

Formula Used: Total bones = 80 + 126 = 206

Fraction = $\frac{a}{a+b}$

Calculation:

Fraction of body’s bones in axial system = $\frac{80}{80+126}$

  $\frac{80}{206}$ = $\frac{40}{103}$ .

(b)

To determine

To find fraction of body’s bones in appendicular system.

Answer to Problem 28E

  $\frac{63}{103}$

Explanation of Solution

Given information: Axial system has 80 bones and Appendicular system has 126 bones.

Formula Used: Total bones = 80 + 126 = 206

Fraction = $\frac{a}{a+b}$

Calculation:

Fraction of body’s bones in appendicular system = $\frac{126}{80+126}$

  $\frac{126}{206}$ = $\frac{63}{103}$ .