Lecture 8: Appendicular Skeleton

Question 1

the appendicular skeleton anchors the – to the —?

Answer 1

limbs to the axial skeleton and also attaches to skeletal muscle

Question 2

pectoral girdle is made of?

Answer 2

1 scapula + 1 clavicle

Question 3

whats a clavicle?

Answer 3

collarbone

Question 4

scapula?

Answer 4

shoulder blade

Question 5

whats the function of the pectoral girdle?

Answer 5

joins the arm to the axial skeleton and serves as a point of attachment for muscles

Question 6

the clavicle joins the sternum at the?

Answer 6

sternoclavicular joint

Question 7

the acromion articulates anteriorly with the sternum at the?

Answer 7

acromioclavicular joint

Question 8

the spine is?

Answer 8

a thick ridge that extends inferiorly and medially from the acromion

Question 9

the coracoid process?

Answer 9

point of attachment for muscles and ligaments

Question 10

glenoid cavity?

Answer 10

depression that accomodates the humeral head

Question 11

upper limbs bones and 3 regions?

Answer 11

30 bones and the regions are
1) humerus
2) radius and ulna
3) carpals, metacarpals and, phalanges

Question 12

humerus?

Answer 12

• humeral head of humerus articulates with glenoid cavity of the scapula: glenohumeral joint

Question 13

ulna?

Answer 13

-longest of forearm bones and medial
-head of the ulna is on the distal side and the proximal end is the olecranon.

Question 14

radius?

Answer 14

• shorter than ulna and is lateral
• head of radius is located at proximal end and articulates with both humerus and ulna

Question 15

what does the distal end of the radius articulate with?

Answer 15

ulna and carpal

Question 16

prominent head of the metacarpals?

Answer 16

knuckles

Question 17

pelvic girdle?

Answer 17

joins the lower limbs to the axial skeleton , stabilizes position of the axial skeleton during lower limb movement, and protects organs of reproductive, excretory, and digestive systems

Question 18

each coxal bone can be divided into 3 sections?

Answer 18

ilium, ischium, pubis

Question 19

ilium includes?

Answer 19

1) acetabulum: depression that accomodates the femoral head
2) iliac crest border of coxal bones
3) sciatic notch: nestles the longest nerve; sciatic nerve

Question 20

ischium?

Answer 20

butt bones and some part of it forms the acetebulum

Question 21

pubis?

Answer 21

pubic symphysis anterior joining of the coxal bones

Question 22

obturator foramen

Answer 22

largest foramen in the body, provides passage for nerves and blood vessels

Question 23

the false pelvis

Answer 23

superior portion of pelvic brim

Question 24

true pelvis

Answer 24

inferior portion of pelvic brim

Question 25

how many bones in lower limb and regions?

Answer 25

30 bones
1) femur
2) patella
3) tibia and fibula
4) tarsal, metatarsal, phalanges

Question 26

femur

Answer 26

longest strongest and heaviest bone in body, joins pelvic girdle at the acetebulum

Question 27

medial and lateral condyle of femur articulate with?

Answer 27

tibia and patella

Question 28

patella?

Answer 28

sesamoid bone that articulates with the femur and tibia

Question 29

tibia?

Answer 29

• longer bone of the lower leg
• distal end of tibia: medial malleolus articulates with the talus and forms the ankle bone

Question 30

fibula?

Answer 30

• smaller bone of lower leg
• only articulates with tibia and talus

Question 31

fibutalar joint?

Answer 31

forms large lateral ankle bone called lateral malleolus

Question 32

whats the strongest tarsal?

Answer 32

calcaneus : heel bone