RAD 210 Ch. 4 Upper Limb

Question 1

What are the four main groups of bones in the upper limb?

Answer 1

Hand and wrist, forearm, arm (humerus), and shoulder girdle

Question 2

How many bones are in the hand and wrist combined?

Answer 2

27 bones

Question 3

How many phalanges are in each hand?

Answer 3

14 phalanges

Question 4

What is the name of the joint between the two phalanges of the thumb?

Answer 4

Interphalangeal (IP) joint

Question 5

What bones make up the palm of the hand?

Answer 5

Metacarpals

Question 6

What is the most frequently fractured carpal bone?

Answer 6

Scaphoid

Question 7

How many bones make up the metacarpals?

Answer 7

Five

Question 8

Which carpal bone is boat-shaped and articulates with the radius?

Answer 8

Scaphoid

Question 9

What are the names of the bones in the proximal row of carpals?

Answer 9

Scaphoid, lunate, triquetrum, pisiform

Question 10

Which joint is formed by the articulation of the first metacarpal and the trapezium?

Answer 10

First carpometacarpal (CMC) joint

Question 11

Which bone is the largest in the distal row of the carpal bones?

Answer 11

Capitate

Question 12

What structure passes through the carpal sulcus?

Answer 12

Major nerves and tendons

Question 12

What is the name of the hook-like process on the hamate bone?

Answer 12

Hamulus (hamular process)

Question 13

How many phalanges does the thumb have?

Answer 13

Two

Question 14

Which carpal bone is known for its small, pea-like shape?

Answer 14

Pisiform

Question 15

What is the main function of the radius in the forearm?

Answer 15

It rotates around the ulna during pronation

Question 16

What two bones form the distal radioulnar joint?

Answer 16

The radius and the ulna

Question 17

Which carpal bone articulates with the second metacarpal?

Answer 17

Trapezoid

Question 18

Which part of the radius can be palpated on the thumb side of the wrist joint?

Answer 18

Radial styloid process

Question 19

What is the name of the process that can be felt on the posterior aspect of the elbow joint?

Answer 19

Olecranon process

Question 20

Which carpal bone is located directly medial to the trapezium?

Answer 20

Trapezoid

Question 21

What type of bone is the ulna in relation to the formation of the elbow joint?

Answer 21

The ulna is primarily involved in the formation of the elbow joint

Question 21

What is the name of the concave depression on the ulna that articulates with the distal humerus?

Answer 21

Trochlear (semilunar) notch

Question 22

Which carpal bone articulates with the first metacarpal?

Answer 22

Trapezium

Question 23

How is the head of the radius different from the head of the ulna?

Answer 23

The head of the radius is located proximally, near the elbow joint, while the head of the ulna is located distally, near the wrist

Question 24

What is the rounded articular margin of the humeral condyle called?

Answer 24

Capitulum

Question 25

Which carpal bone is the most lateral in the proximal row?

Answer 25

Scaphoid

Question 25

What is the distal end of the humerus called?

Answer 25

Humeral condyle

Question 26

Which carpal bone articulates with the lunate and capitate?

Answer 26

The lunate articulates with the capitate distally

Question 27

What is the function of the trochlea of the humerus?

Answer 27

It articulates with the ulna

Question 28

What bone is on the lateral side of the forearm?

Answer 28

Radius

Question 29

What is the name of the smallest bone in the distal row of carpals?

Answer 29

Trapezoid

Question 30

What is the anatomical term for the middle part of a phalanx?

Answer 30

Body (shaft)

Question 31

What does the radial tuberosity serve as an attachment point for?

Answer 31

It serves as an attachment point for muscles

Question 32

How many interphalangeal joints are in each finger (digits 2-5)?

Answer 32

Two (DIP and PIP joints)

Question 33

What does the term "carpal tunnel" refer to?

Answer 33

The carpal sulcus, through which major nerves and tendons pass

Question 34

Which bone forms the bulk of the posterior aspect of the elbow?

Answer 34

Olecranon process of the ulna

Question 35

What is the name of the joint between the radius and ulna near the wrist?

Answer 35

Distal radioulnar joint

Question 36

What is the most medial carpal bone in the distal row?

Answer 36

Hamate

Question 37

What is the primary movement allowed by the radioulnar joints?

Answer 37

Rotational movement of the forearm

Question 38

What is the small depression on the medial aspect of the distal radius called?

Answer 38

Ulnar notch

Question 39

What is the largest bone in the proximal row of carpals?

Answer 39

Scaphoid

Question 40

What is the shape of the lunate bone?

Answer 40

Moon-shaped

Question 41

Which process on the ulna articulates with the humerus to form part of the elbow joint?

Answer 41

Coronoid process

Question 42

What part of the humerus articulates with the head of the radius?

Answer 42

Capitulum

Question 43

How many carpals are in the wrist?

Answer 43

Eight

Question 44

What is the concave area formed by the carpal bones on the anterior side of the wrist?

Answer 44

Carpal sulcus

Question 45

Which bone is located at the extreme distal end of the radius?

Answer 45

Radial styloid process

Question 46

What is the main bone involved in the wrist joint?

Answer 46

Radius

Question 47

What is the name of the large, rounded head of the capitate?

Answer 47

Capitate head