Question

question 4
2 pts
which of the following is not considered a long bone.
radius
fibula
tibia
c5 vertebral body
question 5
2 pts
when an astronaut is in space for 2 months what may happen to their bone density as compared to a person living on earth?
the astronaut will experience bone loss at the same rate as a person on earth
the astronaut will experience bone loss at an increased rate as a person on earth
the astronaut will experience bone loss at a decreased rate as compared to a person on earth.
question 6
2 pts
why is cartilage slow to heal.
because it eventually turns into bone
because it is semi - solid and flexible
because has a no or a limited blood supply
because cartilage calcifies at a slow rate
both a & d
both b & c

Explanation:

• Question 4: Long bones are characterized by their elongated shape. The radius (forearm), fibula, and tibia (lower - leg) are long bones. The C5 vertebral body is a short, irregular - shaped bone in the spine.
• Question 5: In space, astronauts experience microgravity. Without the normal gravitational forces that stimulate bone - building cells on Earth, astronauts experience an increased rate of bone loss compared to people on Earth.
• Question 6: Cartilage has a poor or limited blood supply. Blood vessels are crucial for delivering nutrients and immune cells necessary for healing. Without an adequate blood supply, cartilage heals slowly.

Answer:

• Question 4: C5 Vertebral Body
• Question 5: The astronaut will experience bone loss at an increased rate as a person on earth
• Question 6: Because has a no or a limited blood supply