The Appendicular Skeleton - Lecture 7

Question 1

Name all the bones of the Appendicular skeleton, differentiating from upper and lower.

Answer 1

upper: clavicle, humerus, radius, hand, scapula, ulna
lower: os coxae, fibula, tibia, femur, patella, foot

Question 2

name the features of the clavicle and their orientation

Answer 2

manubrium end (medial), conoid tubercle (inferior), scapular end (lateral)

Question 3

which bone is the first to begin forming and the last to complete it

Answer 3

clavicle

Question 4

what surface of the scapula is smooth? what surface is jagged and irregular?

Answer 4

• superior smooth
• inferior jagged

Question 5

name the features of the scapula

Answer 5

glenoid cavity, acromian process, coracoid process, scapular spine, body/blade

Question 6

what is the glenoid cavity? is it medial or lateral?

Answer 6

forms part of your shoulder joint and is lateral

Question 7

where does the humeral head fit into?

Answer 7

the glenoid fossa

Question 8

where is the coracoid process on the scapula?

Answer 8

superior and anterior

Question 9

where is the acromian process on the scapula?

Answer 9

superior and posterior

Question 10

where is the scapular spine? what process does it turn into?

Answer 10

posterior and the acromian process

Question 11

is the humeral head proximal or distal? does it point medially or laterally?

Answer 11

proximal and medially

Question 12

what side of the humerus is the greater and lesser tubercle? which way is each tubercle pointing?

Answer 12

anterior
- greater is lateral
- lesser is medial

Question 13

what features are on the distal end of the humerus?

Answer 13

1. capitulum (joint the radius attaches to)
2. Trochlea (spool shaped joint posterior and anterior, articulates with ulna)
3. medial epicondyle
4. olecranon fossa (posterior, where the olecranon process fits)

Question 14

what is the deltoid tuberosity?

Answer 14

on the anterior lateral side and is a muscle attatchment

Question 15

where is the neck of the humerus?

Answer 15

between the head and the diaphysis

Question 16

where is the radius in relation to the ulna

Answer 16

lateral

Question 17

name the features of the radius (superior to inferior)

Answer 17

head, radial tuberosity, shaft, ulnar notch, dorsal tubercle, styloid process

Question 18

features of the ulna (superior to inferior)

Answer 18

olecranon process, trochlear notch, radial notch, shaft, styloid process

Question 19

name the three regions of the hand and their bones

Answer 19

1. wrist: 8 carpal
2. palm: 5 metacarpals
3. fingers: 14 phalanges

Question 20

what is the acetabulum?

Answer 20

the hip socket, where the 3 parts of the os coxae fuse

Question 21

what are the 3 parts of the os coxa?

Answer 21

ilium
ischium
pubis

Question 22

name the features of the femur (superior to inferior)

Answer 22

head, greater sciatic notch, neck, lesser trochanter, linea aspera, patellar surface, condyles

Question 23

names the feature of the tibia (superior to inferior)

Answer 23

intercondylar eminence, superior fibular articular facet, tibial tuberosity, popliteal line, tibial crest, medial malleolus, fibular notch

Question 24

name the features of the patella

Answer 24

lateral and medial articular facets, apex

Question 25

name the features of the fibula (superior to inferior)

Answer 25

styloid process, head, interosseous crest, lateral malleolus, malleolar fossa

Question 26

what is a sesmoid bone?

Answer 26

former from intramembrenous ossification and the biggest one is the patella and can also appear in your toes

Question 27

name the three regions of the foot and their bones

Answer 27

1. ankle: 7 tarsal bones
2. body of foot: 5 metatarsals
3. pedal phalanges: 14 phalanges