RC Skeletal system

Multiple Choice

Which of the following best describes the function of osteocytes in compact bone?

• They are mature bone cells embedded in the bone matrix.

• They produce red blood cells in the bone marrow.

• They are responsible for bone resorption.

• They form the outer layer of the periosteum.

Multiple Select

Which of the following are components found in both compact and spongy bone?

• Osteon

• Blood vessels

• Trabeculae

• Nerves

Multiple Choice

Which cells are responsible for breaking down old bone or cartilage during bone remodeling?

• Osteoclasts

• Osteoblasts

• Chondrocytes

• Fibroblasts

Open Ended

Describe two main factors that regulate bone growth and remodeling in long bones.

Multiple Choice

Which cells are responsible for adding bone matrix to the outside of the diaphysis during appositional growth?

• Osteoclasts in the endosteum

• Osteoblasts in the periosteum

• Osteocytes in the lacuna

• Osteogenic cells in the periosteum

Multiple Select

Which of the following are parts of the axial skeleton?

• Skull

• Vertebral column

• Thoracic cage

• Femur

Multiple Choice

How many cranial bones form the human skull?

• 6

• 8

• 10

• 12

Open Ended

Explain the functional significance of the hyoid bone not articulating with any other bone in the body.

Multiple Choice

Which region of the vertebral column contains the most vertebrae?

• Cervical

• Thoracic

• Lumbar

• Sacral

Multiple Choice

Which bones make up the thoracic cage?

• Sternum, ribs, thoracic vertebrae

• Clavicle, scapula, ribs

• Pelvic girdle, ribs, sternum

• Lumbar vertebrae, ribs, sternum

Multiple Choice

How many bones are present in the appendicular skeleton?

• 80

• 126

• 206

• 64

Multiple Choice

Which bones attach the upper limb to the axial skeleton as part of the shoulder (pectoral) girdle?

• Clavicle and scapula

• Humerus and ulna

• Radius and ulna

• Femur and tibia

Multiple Select

Which of the following are features of the scapula?

• Acromion

• Coracoid process

• Glenoid cavity

• Capitulum

Multiple Choice

What does the proximal end (head) of the humerus articulate with?

• Glenoid cavity of the scapula

• Acromion of the scapula

• Clavicle

• Radius

Multiple Choice

Which structure of the ulna articulates with the trochlea of the humerus to form the humeroulnar joint?

• Coronoid process

• Olecranon

• Radial notch

• Tuberosity of ulna

Multiple Choice

How many Carpal Bones are there?

• 4

• 5

• 8

• 10

Multiple Choice

What 3 bones is the pelvic girdle made up of?

• ilium, ischium, pubis
• radius, ulna, humerus
• femur, tibia, fibula
• scapula, clavicle, sternum

Multiple Choice

The large bone you see on the outside of your lower leg that most people refer to as the "anke bone" is what bone?

• tibia
• patella
• calcaneus

• fibula

Multiple Choice

The tarsal bones are what type of bone?

• Long

• Short

• Irregular

• Flat