Lecture 5

Question 1

What are the 4 divisions of the vertebrae column?

Answer 1

Cervicle (7)
Thoracic (12)
Lumbar (5)
Sacrum and coccyx

Question 2

Why is the femur more stable than the humerus?

Answer 2

The femur has a protruding condyle, which is fully surrounded and articulates with the hip joint, making it more stable, where as the humerus has a more flat structure allowing for more range of movement.

Question 3

Components of the hand (fingers), and the number of those components.

Answer 3

• Carpals - 8
• Metacarpals - 5
• Phalanges - 3 (2 for the thumb)

Question 4

Components of the feet (toes), and the number of those components.

Answer 4

• Tarpals - 7
• Metatarpals 5
• Phalanges - 3 (2 for the big toe)

Question 5

What are the 4 bone classes and their function?

Answer 5

• Long bones - help with lever like movement (limbs) (mostly compact)
• Short bones - help with shock absorption (mostly spongy/cancellous)
• Flat bones - make up the cranium (protection of cranium) and also make up the scapula where muscle attachment occurs.
• Irregular bones- don’t fit into any other category.

Question 6

What is the axial skeleton?

Answer 6

The central core of the body, where limbs attach to.