Anatomy of the Skeletal System

What does the appendicular skeleton include?

• All bones of the upper and lower limbs, plus the bones that attach each limb to the axial skeleton.

• Only the bones of the upper limbs.

• Only the bones of the lower limbs.

• The skull and vertebral column.

What does the skeletal system include?

• All of the bones, cartilages, and ligaments of the body that support and give shape to the body and body structures.

• Only the bones of the body.

• Muscles and tendons that connect to the bones.

• The organs that protect the body from external harm.

What are the three regions of vertebrae?

• Cervical (C1–C7), thoracic (T1–T12), and lumbar (L1–L5)

• Cervical (C1–C7), sacral (S1–S5), and coccygeal (Co1–Co4)

• Cervical (C1–C7), thoracic (T1–T12), and sacral (S1–S5)

• Thoracic (T1–T12), lumbar (L1–L5), and coccygeal (Co1–Co4)

How many bones are in the adult axial skeleton?

• 70 bones

• 80 bones

• 90 bones

• 100 bones

How many vertebrae are in the adult vertebral column?

• 22 vertebrae

• 24 vertebrae

• 26 vertebrae

• 20 vertebrae

How many bones are in the adult human skeleton?

• 204

• 206

• 208

• 210

What are the primary functions of the skeleton?

• To provide a rigid, internal structure that supports the weight of the body against gravity and allows muscles to produce movements.

• To store fat and produce hormones that regulate metabolism.

• To protect the internal organs from external damage and to produce blood cells.

• To facilitate the exchange of gases in the respiratory system.

What are the bones of the pelvic region?

• Pelvic girdle, ilium, ischium, pubis, pelvis, and acetabulum

• Humerus, radius, ulna, and scapula

• Femur, tibia, fibula, and patella

• Skull, vertebrae, ribs, and sternum

What are the bones of the upper limbs?

• Humerus, radius, ulna, carpals, metacarpals, and phalanges

• Skull, vertebrae, ribs, and sternum

• Femur, tibia, fibula, and patella

• Clavicle, scapula, and pelvis

What are the bones of the pectoral girdle?

• Scapula and clavicle

• Humerus and radius

• Femur and tibia

• Pelvis and sacrum