Canfitpro Exam 3 2025/2026 GRADE A CORRECT
ANSWERS
How many bones in average human skeleton? - 206
How many bones are babies born with? - 270 soft bones -> that 64 more than an adult, many of
these fuses together by age 20-25 into the 206 permanent bones
What are the 4 essential functions of the skeleton? PPPR - 1) Protects the vital organs and soft tissues
2) Production of RBCs
3) Provides attachments for muscles to produce movement
4) Reservoir for minerals (calcium and phosphate)
What is bone made of? - 50% fluid 50% solid, mineral makes them rigid, and protein makes them
strong
What are the different bone classifications (by shape) (4) - 1) long
2) short
3) flat
4) irregular
What are the two main parts of the skeleton? - the axial and appendicular skeleton
What does the axial skeleton consist of? - skull, spine, ribs and sternum (80 bones)
What does the appendicular skeleton consist of? - two limb girdles: the shoulders and pelvic and
their attached limb bones, 126 altogether, 64 in the shoulders and upper limbs and 62 in the pelvis
and lower limbs
What is the anatomical position? - Where a person stands with arms at the sides palms facing
forward
, Anterior? - describes the front of the body
Posterior - back of body
Medial? - parts closet to the midline
Lateral - parts are away from the midline
Superior - When one body part is above another
Inferior - when one body part is below another
Supine - when the body lies faceup
prone - when the body lies face down
Dorsal - top of foot
Plantar - bottom of foot
Proximal - end of a bone or muscle that is closest to the body
Distal - the end that is farthest from the body
Extension? - straightening a joint
Flexion - bending a joint
Hyperextension - movement beyond the normal joint
abduction - when a bone moves away from the midline of body
ANSWERS
How many bones in average human skeleton? - 206
How many bones are babies born with? - 270 soft bones -> that 64 more than an adult, many of
these fuses together by age 20-25 into the 206 permanent bones
What are the 4 essential functions of the skeleton? PPPR - 1) Protects the vital organs and soft tissues
2) Production of RBCs
3) Provides attachments for muscles to produce movement
4) Reservoir for minerals (calcium and phosphate)
What is bone made of? - 50% fluid 50% solid, mineral makes them rigid, and protein makes them
strong
What are the different bone classifications (by shape) (4) - 1) long
2) short
3) flat
4) irregular
What are the two main parts of the skeleton? - the axial and appendicular skeleton
What does the axial skeleton consist of? - skull, spine, ribs and sternum (80 bones)
What does the appendicular skeleton consist of? - two limb girdles: the shoulders and pelvic and
their attached limb bones, 126 altogether, 64 in the shoulders and upper limbs and 62 in the pelvis
and lower limbs
What is the anatomical position? - Where a person stands with arms at the sides palms facing
forward
, Anterior? - describes the front of the body
Posterior - back of body
Medial? - parts closet to the midline
Lateral - parts are away from the midline
Superior - When one body part is above another
Inferior - when one body part is below another
Supine - when the body lies faceup
prone - when the body lies face down
Dorsal - top of foot
Plantar - bottom of foot
Proximal - end of a bone or muscle that is closest to the body
Distal - the end that is farthest from the body
Extension? - straightening a joint
Flexion - bending a joint
Hyperextension - movement beyond the normal joint
abduction - when a bone moves away from the midline of body
