Exercise: Human Skeletal System

The human skeletal system has various main functions that support our daily activities. Among the following statements, which one describes the most complete function of the human skeleton?

• Provides body shape and support so that the body can stand upright, protects internal organs, functions as an active movement tool, and serves as a place for the production of red blood cells in the bone marrow.

• Provides body shape and support so that the body can stand upright, protects internal organs, functions as a passive movement tool, and serves as a place for the production of red blood cells in the bone marrow.

• Provides body shape and support so that the body can stand upright, protects internal organs, serves as a place for the attachment of internal organs, and serves as a place for the production of red blood cells in the bone marrow.

• Provides body shape and support so that the body can stand upright, protects internal organs, functions as a passive movement tool, and moves parts of the body.

Most of the bones that make up the skull are connected in such a way that they do not allow movement between bones. Which part of the skull bones is relatively free to move?

• Temporal bone

• Upper jaw bone

• Lower jaw bone

• Ear bone

The human body's movement apparatus consists of two components, namely active movement apparatus and passive movement apparatus. Which part is classified as an active movement apparatus?

• Bones and ligaments.

• Ligaments and tendons (muscles).

• Joints.

• Muscles.

Based on their type, the bones that make up the skeleton can be classified into flat bones, long bones, and short bones. Which group among the following options consists of short bones?

• Neck bone, forehead bone, finger bones

• Pelvic bone, spine, ankle bone

• Spine, chest bone, tail bone

• Finger bones, ankle bone, spine

In the bone marrow, there is a type of bone that functions as a place for the production of red blood cells. Which part of the following image indicates the part that produces red blood cells?

• Red marrow

• Spongy bone

• Yellow marrow

• Periosteum

Based on the freedom of movement of the bones, there are various types of joints, according to the diagram below. Which diagram illustrates the model of a joint that allows two-way movement?

• Diagram A

• Diagram C

• Diagram D

• Diagram E

Which type of joint best describes the joint at the hip?

• Saddle joint

• Hinge joint

• Ball-and-socket joint

• Condyloid joint

The following are examples of various joints in the human body and their functions. Which pair best describes the composition of the joint?

• At the elbow: Hinge joint, to allow movement in one direction.

• At the knee: Hinge joint, to allow movement in one direction.

• At the lower neck: Ball-and-socket joint, to allow movement in all directions.

• At the upper neck: Ball-and-socket joint, to allow movement in two different directions.

Excessive force on a joint can potentially damage the joint and cause prolonged pain. This is most likely to occur due to:

• Tearing of the muscles around the joint.

• Damage to the hard bone ends at the joint.

• Damage to the cartilage layer at the joint.

• Rupture of blood vessels.

What can happen due to the elongation of ligaments?

• Tearing of the muscles around the joints.

• Damage to the hard bone ends at the joint connections.

• Damage to the cartilage layer at the joint connections.

• Rupture of blood vessels in the area around the joints.