Question 1

The patellar surface, with which the patella articulates, is located on the _____ end of the _____.

Accepted Answer

The patellar surface, with which the patella articulates, is located on the distal end of the femur.

Question 2

Using the following directional terms, decide which bone is being described: medial to metatarsal III; proximal to proximal phalanx; distal to second (intermediate) cuneiform.

Accepted Answer

The bone described is medial to metatarsal III, proximal to the proximal phalanx of the same digit, and distal to the second (intermediate) cuneiform, which accurately describes the position of metatarsal II in the foot's skeletal structure.

Question 3

Which of the following is an articular feature of the tibia?

Accepted Answer

The lateral condyle is an articular feature of the tibia, as it articulates with the femur at the knee joint and with the fibula at the proximal tibiofibular joint.

Question 4

The ulna:

Accepted Answer

The ulna has a radial notch on its lateral surface, which accommodates the head of the radius to form the proximal radioulnar joint, allowing for the pronation and supination of the forearm.

Question 5

The cup-shaped depression formed by all three portions of the hip (coxal) bone is the _____.

Accepted Answer

The acetabulum is the cup-shaped depression in the hip bone where the head of the femur (thigh bone) fits, forming the hip joint.

Question 6

Which of the following is found on the anterior surface of the humerus?

Accepted Answer

The radial fossa is located on the anterior surface of the humerus, above the capitulum, and accommodates the head of the radius when the elbow is flexed.

Question 7

Which of the following is not part of the ilium?

Accepted Answer

The lesser sciatic notch is a feature of the ischium, not the ilium. The ilium includes features such as the greater sciatic notch, inferior gluteal line, and auricular surface.

Question 8

Which of these does not belong to the distal row of carpal bones?

Accepted Answer

The pisiform is part of the proximal row of carpal bones, not the distal row. The trapezoid, trapezium, and capitate are all part of the distal row.

Question 9

The number of phalanges in one hand is

Accepted Answer

Each hand has 14 phalanges: 3 in each finger (proximal, middle, and distal) and 2 in the thumb (proximal and distal).

Question 10

The bony landmarks commonly referred to as "knuckles" are the

Accepted Answer

The "knuckles" are the heads of the metacarpals, which are the rounded ends of the bones that form the joints with the proximal phalanges.

Question 11

Which of the following is not a tarsal bone?

Accepted Answer

The hamate is a carpal bone located in the wrist, not a tarsal bone of the foot. The navicular, cuboid, and cuneiform bones are all tarsal bones found in the foot.

Question 12

The clavicle

Accepted Answer

The clavicle articulates with the acromion of the scapula and the manubrium of the sternum, forming part of the shoulder girdle and connecting the arm to the body.

Question 13

Which of the following is true of the radius?

Accepted Answer

The radius is not the medial bone of the forearm (that's the ulna), its head articulates with the radial notch of the ulna (not the distal end), and it does not articulate with the trochlear notch of the humerus (that's also the ulna).

Question 14

The male skeleton, as compared to the female skeleton,

Accepted Answer

The male skeleton differs from the female skeleton in several ways: it generally has heavier bones, rougher and larger tuberosities and ridges due to the attachment of stronger muscles, and a heart-shaped pelvic inlet, as opposed to the wider, circular pelvic inlet of females. These differences are related to the distinct biological and reproductive roles of males and females.

Question 15

Using the following directional terms, decide which structure of the scapula is being described: lateral to the spine; inferior to the acromion; posterior to the coracoid process; proximal to the head of the humerus.

Accepted Answer

The glenoid cavity fits the description as it is lateral to the spine of the scapula, inferior to the acromion, posterior to the coracoid process, and proximal to the head of the humerus, serving as the socket for the head of the humerus.

Question 16

Using the following directional terms, decide which bone is being described: proximal to metacarpal I; distal to the scaphoid bone; and lateral to the trapezoid bone.

Accepted Answer

The trapezium bone is proximal to metacarpal I, distal to the scaphoid bone, and lateral to the trapezoid bone, fitting the description given.

Question 17

Which of the following is true?

Accepted Answer

The medial end of the clavicle is indeed called the sternal extremity, which articulates with the sternum. The curvature of the medial one-third of the clavicle is actually convex anteriorly, not concave. The clavicle does articulate medially with the sternum and laterally with the acromion of the scapula.

Question 18

Using the following directional terms, decide which structure of the pelvis is being described: medial to the ischium; inferior to the ilium; lateral to the pubic symphysis; medial to the acetabulum.

Accepted Answer

The structure described is the pubis. It is medial to the ischium, inferior to the ilium, lateral to the pubic symphysis, and medial to the acetabulum, fitting the description of the pubis' location in the pelvis.

Question 19

The scapula

Accepted Answer

The scapula, or shoulder blade, indeed has three large nonarticular fossae: the supraspinous fossa, infraspinous fossa, and subscapular fossa. These fossae do not directly articulate with other bones but serve as sites for muscle attachment.

Question 20

The coracoid process of the scapula is

Accepted Answer

The coracoid process of the scapula serves as a site of muscle attachment for several muscles, including the pectoralis minor, the coracobrachialis, and the short head of the biceps brachii. It is not an extension of the scapular spine nor the high point of the shoulder.

Quiz 8: The Skeletal System: the Appendicular Skeleton

The patellar surface, with which the patella articulates, is located on the _ end of the _.