PSK4U Unit Test 1 MC

Which of the following is NOT one of the five types of bones?

• Long

• Short

• Sesamoid

• Cuboid

Which of the following facts about bones is TRUE?

• Composed of 50% water and 50% inorganic material

• Elements include phosphorus, zinc, calcium and zircon

• Does not resist compression or tension

• Bound by joints via tendons

The presence of an epiphyseal plate in an x-ray indicates that which of the following is taking place in this region of a long bone?

• The activity of osteoclasts is greater than the activity of osteoblasts

• The activity of osteoblasts is greater than the activity of osteoclasts

• The individual is not growing anymore

• The individual has a stress fracture from overactivity

Which of the following statements is FALSE about osteoporosis?

• Osteoporosis results in a dangerously high bone mineral density

• Osteoporosis results in a dangerously low bone mineral density

• Osteoporosis is the result of changes in bone mineral density

• Bone mineral density should be actively maintained before the age of 40

Which of the following major functions of muscle does NOT belong on this list?

• Movement

• Support

• Irritability

• Heat Production

What is the correct name of the biological mechanism on display in this image?

• Ligament

• Tendon

• Neuromuscular Junction

• Nervous system

Someone attempts to lift something, but "forgets" how heavy it is and then must attempt to lift the object again to be successful. Why is this happening?

• This is happening because the person is weak and needs to go to the gym

• This is happening because the person initially recruited a number of motor units that was insufficient

• This is happening because the person initially recruited a number of motor units that was sufficient

• This is happening because this person was initially recruiting an eccentric force rather than a concentric force

The muscle coloured "green" in this image has its name derived from _______?

• The fact that this muscle has two heads

• The fact that this muscle has three heads

• The fact that this muscle is shaped like a trapezoid

• The fact that this muscle is shaped like a river delta

Which of the following correctly describes the anatomical position?

• Upright standing position, face and feet pointing forward, forearms fully supinated

• Upright standing position, face and feet pointing forward, forearms fully pronated

• Upright standing position, face and feet pointing backward, forearms fully pronated

• Upright standing position, face and feet pointing backward, forearms fully supinated

Flexion occurs around the horizontal axis and through the

• Frontal plane

• Transverse plane

• Longitudinal axis

• Sagittal plane