BIOL1307 Exam 4 Review Quiros

What is the primary purpose of the human musculoskeletal system?

• To protect the internal organs and facilitate movement

• To generate energy and circulate nutrients

• To regulate body temperature and digestion

• To maintain immune defense and hormone production

What is a key characteristic of a hydrostatic skeleton?

• It consists of hard, mineralized structures located within soft tissues.

• It is a skeleton formed by a fluid-filled compartment that resists external compression.

• It is an external skeleton that provides defense and supports movement.

• It is a rigid structure that protects internal organs and facilitates locomotion.

Which of the following animals typically have a hydrostatic skeleton?

• Crabs and insects

• Horses and humans

• Sea anemones and earthworms

• Birds and reptiles

What is an example of an organism with an exoskeleton?

• Sponge

• Crab

• Frog

• Snake

What are the primary functions of an endoskeleton?

• Protect internal organs, resist external pressure, and regulate nutrient flow

• Provide body support, protect internal organs, and facilitate movement through muscle attachment

• Allow gliding movements, contract fluid-filled compartments, and create resistance

• Form rigid encasements, generate body heat, and allow for fluid flow

Which of the following animals has an endoskeleton?

• Insects

• Earthworms

• Horses

• Starfish

Which of the following is an example of a flat bone?

• Femur

• Sternum

• Vertebra

• Patella

What is a characteristic of long bones?

• Cube-shaped with equal length and width

• Thin, broad, and provide extensive protection or muscle attachment

• Contain a central shaft and rounded ends, often filled with bone marrow

• Complex shapes with notched or ridged surfaces

Which of the following is an example of an irregular bone?

• Humerus

• Tarsals

• Vertebra

• Clavicle

Sesamoid bones are typically:

• Found in the skull and protect the brain

• Flat and broad for muscle attachment

• Small, flat, and embedded within tendons near joints

• Long with a central shaft and red marrow