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Skeletal Systems and Muscle Movement

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Questions and Answers

What is the primary function of a skeleton in an animal's body?

To regulate body temperature

To generate neuronal input

To convert muscle contraction into locomotion (correct)

To produce muscle contraction

What is the role of connective tissue in the skeletal system?

To contract muscles

To relax muscles

To anchor muscles to bone (correct)

To generate motor neurons

What is the term for two muscles attached to the same section of the skeleton?

Antagonistic pair (correct)

Muscular pair

Skeletal pair

Cooperative pair

What is one of the primary functions of a skeleton in land animals?

To support body mass (A) Signup and view all the answers

What is the role of a skeleton in an animal living in water?

To maintain body shape (B) Signup and view all the answers

What is an additional function of a hard skeleton in many animals?

To protect soft tissues (A) Signup and view all the answers

What is the main function of the ossicles in echinoderms' bodies?

To reinforce the body and provide structural support (C) Signup and view all the answers

What type of cells secrete bone matrix and build and repair bone?

Osteoblasts (C) Signup and view all the answers

What determines the strength of a support in a building or an animal's skeleton?

Its cross-sectional area (A) Signup and view all the answers

Why do large animals have different body proportions compared to small ones?

Because their weight increases with the cube of their dimensions (B) Signup and view all the answers

What plays a more important role in supporting body weight in mammals and birds?

Body posture (D) Signup and view all the answers

What helps to bear the load of body weight in large mammals?

Muscles and tendons (B) Signup and view all the answers