Locomotion and Support

Figure 2 shows a human lumbar vertebra.

What is the function of X and Y in Figure 2?

• Protection for spinal cord

• Surfaces for muscle attachment

• Surfaces for vertebral joints

• Surfaces for rib articulation

            Diagram 1 shows an elbow joint. Which of the following parts labelled A, B, C or D is tough and elastic?

• A

• B

• C

• D

            Diagram 1 shows an elbow joint. Which of the following parts labelled A, B, C or D is tough and elastic?

 If tendon X was torn off, what happens to the arm?

• The elbow joint loosens up

• The fingers cannot grip

• The arm cannot be bent

• The lower arm cannot twist

Diagram 1 shows a knee joint.

Which of the following tissues joins X to Y?

• Ligament

• Tendon

• Adipose

• Cartilage

Diagram 2 shows the structure of a human forearm.

What happens to the parts P, Q, R and S which cause the arm to be in the position as shown in the diagram?

• Relaxes (P)

  Contracts (Q)

  Is pushed downwards (R)

  Is pushed downwards (S)

• Contracts (P)

  Relaxes (Q)

  Is pushed downwards (R)

  Is pushed downwards (S)

• Relaxes (P)

  Contracts (Q)

  Is pulled upwards (R)

  Is pulled upwards (S)

• Contracts (P)

  Relaxes (Q)

  Is pulled upwards (R)

  Is pulled upwards (S)

   

Tags

NGSS.MS-LS1-3

The diagram shows human bones.

Which bones are part of the axial skeleton?

• P and S

• Q and R

• P, Q and R

• Q, R and S

P, Q, R and S in Diagram 1 are vertebrae found along the spine.

Which of the following shows the correct arrangement of the vertebrae in the spine?

•   R, S, P, Q

•     P, Q, R, S

•   Q, R, S, P

•   S, P, R, Q

Diagram 2 shows part of the human skeletal system.

What is X?

• Ulna

• Scapula

• Humerus

• Clavicle

A man is complaining of frequent back pains due to an injury.

Which of the following would help reduce his problem?

  I    Eat plenty of protein

 II    Practice a good posture

III    Do vigorous exercise

IV    Avoid carrying heavy objects

• I and II

• I and III

•    II and IV

•   III and IV

Diagram 4 shows a bending leg.

Which of the following muscle actions will straighten the leg?

• Quadriceps femoris (Contracts)

  Biceps femoris (Contracts)

• Quadriceps femoris (Contracts)

  Biceps femoris (Relaxes)

• Quadriceps femoris (Relaxes)

  Biceps femoris (Relaxes)

• Quadriceps femoris (Relaxes)

  Biceps femoris (Contracts)