Bontrager Ch.4 Upper Limb

Question 1

How many bones are in the hand/wrist?

Answer 1

27. There are 19 bones in the hand and 8 in the wrist.

Question 2

Hand/Wrist: how many minature long bones are there in the phalanges?

Answer 2

14 miniature long bones

Question 3

Hand/Wrist: how many minature long bones are in the metacarpals?

Answer 3

5 minature long bones

Question 4

Hand/Wrist: how many short carpal bones are in the wrist?

Answer 4

8 short carpal bones

Question 5

Hand/Wrist: for phalanges digits are numbered 1-5. Starting with the thumb as ____. Each finger has 3 phalanges ______,______, and ______.

Answer 5

1. # 1
2. proximal, middle, distal

Question 6

Hand/Wrist: The thumb only has _____ phalanges the ______ and ______.

Answer 6

2, proximal and distal

Question 7

Hand/Wrist: Each phalanx (individual phalange) has a ______(which is proximal), ________(shaft) and a ________(distal).

Answer 7

base, body, round head.

Question 8

Joints of Hand/Wrist: the thumb only has 2 phalanges so it on has a _______ joint.

Answer 8

Interphalangeal (IP)

Question 9

Hand/Wrist: where is the first metacarpophalangeal (MCP) joint located?

Answer 9

the joint between the proximal phalanx and the first metacarpal.

Question 10

Hand/Wrist: when x-raying the thumb the ___________ must be included in all 3 views (include from tip of distal phalanx to _____)

Answer 10

entire first metacarpal, (base of first metacarpal)

Question 11

Hand/Wrist: fingers have ___ phalanges so they contain the ________,_________, and ________ joints.

Answer 11

1. 3
2. distal interphalangeal joint (DIP)
3. Proximal interphalangeal joint (PIP)
4. metacarpal phalangeal joint (MCP)

Question 12

Hand/Wrist: when x-raying the fingers, include from the _______ to __________.

Answer 12

tip of distal phalanx to proximal 1/3 metacarpal.

Question 13

Hand/Wrist: What are the 8 carpal bones in order from the proximal row starting on thumb?

Answer 13

Scaphoid, Lunate, Triquetrum, Pisiform, Hamate, Capitate, Trapezoid, and Trapezium. So Long To Pinky Here Comes The Thumb).

Question 14

Radius/Ulna: the radius is on the ______side and the ulna is on the ______ side.

Answer 14

1. thumb side
2. ulna is on the pinky side.

Question 15

Radius/Ulna: the radius and ulna articulate with eachother at the ___________ (joint). Which allows?

Answer 15

proximal and distal radioulnar joint. This allows rotational movement of the forearm, wrist, and hand.

Question 16

Radius/Ulna: where is the head of the Radius located?

Answer 16

The proximal end of the radius (near the elbow)

Question 17

Radius/Ulna: Where is the neck of the radius located?

Answer 17

constricted area just below the head

Question 18

Radius/Ulna: What is radial tuberosity and where is it located?

Answer 18

rough oval process on the radius, just distal to the radial neck.

Question 19

Radius/Ulna: where is the head of the ulna?

Answer 19

distal end near the wrist.

Question 20

Radius/Ulna: what is the proximal ulna?

Answer 20

longer of the 2 bones of the forearm primarily involved in the formation of the elbow joint.

Question 21

Radius/ulna: describe the olecranon process of the ulna.

Answer 21

beak-like process palpable on posterior surface (funny bone)

Question 22

Radius/Ulna: is the coronoid process of the ulna a beak-like process?

Answer 22

yes

Question 23

Radius/Ulna: describe the trochlear notch of the the ulna.

Answer 23

Large, concave, depression that articulates with distal humerus.

Question 24

Radius/Ulna: describe the radial notch of the ulna.

Answer 24

shallow depression on lateral side of ulna that the head of the radius fits into.

Question 25

Humerus: what is the distal portion of the humerus composed of?

Answer 25

Body- larger center portion (shaft)
Humeral Condyle- expanded distal end of the humerus.
Trochlea- on ulnar/medial side (anatomic position), articulates with the ulna.
Capitulum- on radial/ lateral side (anatomic position), articulates with the head of the radius.
Epicondyles- above the condyles, medial which is above the trochlea and larger and lateral which is smaller and is above the capitulum.

Question 26

Humerus: what are the 2 types of depression/fossae of the distal humerus? what are they composed of?

Answer 26

Anterior fossae: composed of a radial fossa (lateral side recieves radius when arm is flexed)
Posterior fossae: composed of the olecranon fossa (recieves olecranon when arm is flexed)