Q: Which equation best represents the total number of bones in the appendicular skeleton?

$$126 = 4 \text{ pectoral girdle} + 60 \text{ upper limbs} + 2 \text{ pelvic girdle} + 60 \text{ lower limbs}$$

Q: Which equation correctly represents the number of phalanges in the foot?

$$14 = 2 \text{ (big toe)} + 3 \times 4 \text{ (other toes)}$$

Question 1

Which bone forms the only direct bony connection between the pectoral girdle and the axial skeleton?

Accepted Answer

Clavicle

Question 2

A patient presents with a fracture at the acromion process. Which bone is directly affected?

Accepted Answer

Scapula

Question 3

The glenohumeral joint is formed by the articulation of which two structures?

Accepted Answer

Glenoid cavity of scapula and head of humerus

Question 4

Which process on the scapula serves as a major attachment site for muscles of the upper limb?

Accepted Answer

Coracoid process

Question 5

During a fall on an outstretched hand, which bone is most likely to fracture at its distal end, commonly known as a 'Colles fracture'?

Accepted Answer

Radius

Question 6

Which bone of the forearm is located medially in the anatomical position?

Accepted Answer

Ulna

Question 7

The acetabulum is a feature of which bone, and what is its primary function?

Accepted Answer

Hip bone; articulates with head of femur

Question 8

Which structure forms the anterior joint between the two hip bones?

Accepted Answer

Pubic symphysis

Question 9

A patient has difficulty extending their knee after a direct blow to the anterior thigh. Which bone is most likely involved in the injury?

Accepted Answer

Patella

Question 10

Which bone is NOT part of the knee joint but serves as an important site for muscle attachment in the lower leg?

Accepted Answer

Fibula

Question 11

The lateral malleolus is a prominent feature of which bone?

Accepted Answer

Fibula

Question 12

How many phalanges are present in the human hand, and how are they distributed among the fingers?

Accepted Answer

14; two in the thumb, three in each finger

Question 13

Which bone in the foot directly articulates with the tibia to form the ankle joint?

Accepted Answer

Talus

Question 14

A nurse is assessing a patient for signs of osteoporosis. Which part of the appendicular skeleton is most commonly affected by osteoporotic fractures in elderly patients?

Accepted Answer

Hip (proximal femur)

Question 15

Which equation best represents the total number of bones in the appendicular skeleton?

Accepted Answer

$$126 = 4 	ext{ pectoral girdle} + 60 	ext{ upper limbs} + 2 	ext{ pelvic girdle} + 60 	ext{ lower limbs}$$

Question 16

Which of the following best describes the difference between the pelvic inlet and pelvic outlet?

Accepted Answer

Pelvic inlet is the upper opening of the true pelvis, pelvic outlet is the lower opening

Question 17

Which bone marking on the femur serves as a major site for muscle attachment and is commonly used as a landmark for intramuscular injections?

Accepted Answer

Greater trochanter

Question 18

A patient suffers a dislocation at the acromioclavicular joint. Which two bones are involved?

Accepted Answer

Clavicle and scapula

Question 19

Which of the following is a composite structure involving both the axial and appendicular skeletons?

Accepted Answer

Pelvis

Question 20

Which equation correctly represents the number of phalanges in the foot?

Accepted Answer

$$14 = 2 	ext{ (big toe)} + 3 	imes 4 	ext{ (other toes)}$$

Appendicular Skeleton: Structure and Function

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