The Appendicular Skeleton

Question 1

What is the role of the appendicular skeleton?

Answer 1

The appendicular skeleton with attached skeletal muscles lets you manipulate objects and move from place to place

Question 2

What structures comprise the appendicular skeleton?

Answer 2

the pectoral girdles, upper limbs, pelvic girdle, and lower limbs

Question 3

What 4 bones does the pectoral girdle consist of?

Answer 3

clavicles and scapulae

Question 4

What bones make up the upper limbs?

Answer 4

humeri, radii, ulnae, carpal bones, metacarpals, and phalanges

Question 5

What bones make up the pelvic girdle?

Answer 5

hip bones

Question 6

What bones are the lower limbs comprised of?

Answer 6

femurs, patellae, tibias, fibulas, tarsal bones, metatarsals, and phalanges

Question 7

Where do the S-shaped bones called clavicles originate?

Answer 7

the superior, lateral border of the manubrium (sternum), lateral to the jugular notch

Question 8

In anatomical descriptions, what does arm (brachium) refer to?

Answer 8

the proximal portion of the upper limb (from shoulder to elbow)

Question 9

What is the distal portion of the upper limb (from elbow to wrist)?

Answer 9

the forearm

Question 10

The humerus (the arm’s only arm bone) extends from:

Answer 10

the scapula to the elbow

Question 11

What two parallel long bones support the forearm (antebrachium)?

Answer 11

Ulna and radius

Question 12

The ulna lies _____ to the radius.

Answer 12

medial

Question 13

What is the fibrous sheet that connects the lateral margin of the ulna to the radius called?

Answer 13

Interosseous membrane

Question 14

From proximal to distal, the ulna is made up of the _____, _____. ____.

Answer 14

olecranon, the shaft, and the ulnar head

Question 15

The ____, the proximal end of the ulna, is the point of the elbow.

Answer 15

olecranon

Question 16

olecranon mnemonic involves the letter L:

Answer 16

The knob you feeL at the eLbow is the oLecranon of the uLna

Question 17

The radius is made up of what 3 main parts? (from proximal to distal)

Answer 17

head of the radius, shaft, and radial styloid process

Question 18

The wrist, or carpus, contains _____ carpal bones.

Answer 18

8

Question 19

Some of the carpal bones articulate with the 5 _____ bones to _______.

Answer 19

Metacarpal, support the hand

Question 20

How many finger bones (phalanges) does each hand have?

Answer 20

14

Question 21

With which carpal bones does metacarpal IV articulate?

Answer 21

Metacarpal IV articulates with the hamate and capitate

Question 22

What are the 4 proximal carpal bones?

Answer 22

scaphoid, lunate, triquetrum, and pisiform

Question 23

What are the 4 distal carpal bones?

Answer 23

trapezium, trapezoid, capitate, and hamate

Question 24

8 Carpal Bones mnemonic: Sam Likes To Push The Toy Car Hard (lateral-to-medial; proximal to distal)

Answer 24

Scaphoid, Lunate, Triquetrum, Pisiform
Trapezium, trapezoid, capitate, hamate

Question 25

List all the bones of an upper limb.

Answer 25

Humerus, ulna, radius, carpal bones, 5 metacarpal, and 14 phalanges

Question 26

The rounded projections on each side of the elbow are parts of which bone?

Answer 26

The two rounded projections on either side of the elbow are the lateral and medial epicondyles of the humerus

Question 27

The radius is ____ to the ulna while in the anatomical position

Answer 27

Lateral

Question 28

The ulna is ___ to the radius while in the anatomical position

Answer 28

Medial

Question 29

What is the correct term for the opening formed by the pubis and the ischium

Answer 29

Obtrurator foramen

Question 30

Name the bones of the pelvic girdle.

Answer 30

Paired hip bones, coxal bones, or pelvic bones

Question 31

Which 3 bones make up a hip bone?

Answer 31

The three bones that make up a hip bone are the ilium, ischium, and pubis

Question 32

When you are seated, which part of the pelvis supports your body’s weight?

Answer 32

Ischial tuberosities

Question 33

What is the longest and heaviest bone in the body?

Answer 33

The femur

Question 34

What bones does the skeleton of each lower limb consist of?

Answer 34

Femur, patella, tibia and fibula, the tarsal, metatarsals, and phalanges of the foot

Question 35

Primarily, why does the functional anatomy of the lower limbs differ from that of the upper limbs?

Answer 35

The lower limbs transfer the body weight to the ground

Question 36

What are the 3 major parts of the femur?

Answer 36

Femoral head, shaft, condyles

Question 37

Why are the first five ribs termed true ribs?

Answer 37

The first five ribs are termed true ribs because they attach directly to the sternum through the costal cartilage.

Question 38

Why are the next five ribs termed false ribs?

Answer 38

The next five ribs are termed false ribs because they attach to the sternum indirectly through the costal cartilage.