Exam 27: Skeletons, Muscles, and Movement

Skeletons that form hard mineral matrices usually contain

Generally, the larger an animal, the less of its weight is made up by its skeleton.

If the sarcomeres of a muscle are in the arrangement depicted by the figure below, the muscle must be in a relaxed state.

Lobsters and insects have internal skeletons.

Damage to the knee often results in torn cartilage, which must be surgically repaired. Why is damage to the cartilage unlikely to heal on its own?

As a muscle contracts,

Which of the following statements about support structures is true?

Which of the following is a benefit of having an endoskeleton?

Muscles work in pairs, because

The three types of muscle in our bodies are smooth muscle, skeletal muscle, and _______ muscle.

Ligaments are connective tissues that connect __________ to bone.

Locomotion in insects differs from that of vertebrates in that the muscles of insects

The energy source for muscle contraction comes from

Short-distance sprinters like Asafa Powell probably have more slow muscle fibers than fast muscle fibers in their legs.

The figure below shows the change that occurs in two muscles when the arm goes from a bent to a straight position. For this to occur,

Which of the following is not one of the three different types of support structures that make up the human skeleton?

Which of the following would be found in a sarcomere?

Actin filaments are anchored to

You can wave "hello" to a friend, because you have

If there were no tendons in your appendicular skeleton, you wouldn't be able to