The Human Skeleton

What are the main components of the skeleton?

• Cartilages, bones, ligaments & joints

• Muscles and tendons

• Skin and tissues

• Nerves and blood vessels

What is the difference between bones and cartilages?

• Bones are rigid and heavier than cartilages

• Cartilages are more flexible and lighter

• Both are the same

• Bones are lighter than cartilages

What is the axial skeleton composed of?

• Skull, vertebral column, ribs & sternum

• Upper & lower limbs

• Pelvic girdle

• All of the above

How many bones does the human skeleton have?

• 206

• 205

• 210

• 200

What is the function of fontanelles in infants?

• Allow overlap of skull bones during delivery

• Provide structural support

• Protect the brain

• Facilitate growth of the skull

What happens to the bregma during fetal life?

• It is the site of anterior fontanelle

• It ossifies at birth

• It becomes the mandible

• It is not present

What is the significance of the pterion?

• It is the most frequently fractured part of the skull

• It is the strongest part of the skull

• It is the meeting point of the mandible

• It has no significance

What bones form the zygomatic arch?

• Temporal process of zygomatic bone and zygomatic process of temporal bone

• Frontal and parietal bones

• Maxillary and nasal bones

• Occipital and temporal bones

What is the external occipital protuberance?

• A median elevation on the occipital bone

• A part of the mandible

• A type of joint

• A muscle attachment point

What is the role of the infra-orbital foramen?

• It gives passage to infra-orbital nerve & vessels

• It connects the nasal cavity

• It is a muscle attachment point

• It has no role