Appendicular Skeleton

Question 1

Name the bones of the Pectoral Girdle, what articulates, and major feature

Answer 1

-Holds arms- greatest mobility in body

• Clavicle- collar bone
• -articulates with manubrium of sternum and acromion of the scapula
• Scapula- shoulder blade (spine, acromion process, coracoid process, glenoid fossa, supraspinous fossa, intraspinous fossa_
• -articulates with glenoid fossa with the head of the humerus

Question 2

Acromion Process

Answer 2

• Scapula
• Rough projection from the spine, connects deltoid muscle
• connects with the clavical

Question 3

Spine (of Scapula)

Answer 3

ridge located on the posterior side of bone

Question 4

Coracoid Process

Answer 4

Scapula
rough bumpy, bicep muscle connection
anterior point of shoulder joint

Question 5

Glenoid Fossa

Answer 5

Scapula-sockey

articulates with the humurous (shoulder dip)

Question 6

Infraspinous Fossa

Answer 6

Scapula

Superior side of bone

Question 7

Supraspinous Fossa

Answer 7

Scapula

Superior side of bone

Question 8

Subscapular fossa

Answer 8

Scapula

Anterior suface for muscle connection

Question 9

Name the bones of the Pectoral Appendages (upper)

Answer 9

30 bones

1. Humurous- bone of the branchium
2. Radius- Lateral bone of four arm
3. Ulna-medial bone of four arm
4. Carpals- 8 bones arranged in 2 rows
5. metacarpals- 5 bones of the hand
6. Phalanges- 14 bones- proximal, medial, distal

Question 10

Humerus

Answer 10

• Articulates with glenoid fossa of the scapula
• Head- smooth ball at proximal end
• Shaft- (aka) diaphysis (long part of bone)
• greater and lesser tubercles-proximal point of head, for muscle attachment
• Deltoid tuberosity-connects with deltoid muscle, on shaft
• trochlea- condyle- medial (pinky side) (SPOOL OF THREAD) inferior part of bone
• Capitulum-condyle-lateral surface-articulates with the head of the radius-distal end(elbow side)

Question 11

Radius

Answer 11

• lateral bone of four arm (thumb side)
• head like a button cap, articulates with capitulum of humerus
• Styloid process-for stabilization

Question 12

Ulna

Answer 12

• Medial bone of four arm (pinky side)
• Olecranon process-elbow-rough projection
• Semilunar=Trochlea notch- articulates with the trochler of humerus
• Styloid process- wrist nob, stabilizes carpal joint

Question 13

Olecranon Process

Answer 13

Ulna- elbow superior process of semilunar arch (trochlear notch)

Question 14

Trochlear notch

Answer 14

Ulna- articulates with the trochlea of humeros

Question 15

Trochlea

Answer 15

Condyle- spool of thread-superior of humerus

Question 16

Capitulum

Answer 16

Distal end towards elbow of the humerus

articulates with head of radius

Question 17

Carpals

Answer 17

• 8 bones in two rows of 4
• short bones
• Proximal row articulates with radius
• Distal row articulates with metacarpals

Question 18

Metacarpals

Answer 18

• 5 bones

- numbered lateral to medial (thumb to pinky)

Question 19

Phalanges (Phalanx)

Answer 19

• bones of digits
• arranged in proximal, medial, distal
• 14 phalanges per hand (thumb has only 2, others have 3)

Question 20

Pollex

Answer 20

Thumb

Only has proximal and distal phalanges

Question 21

Hallux

Answer 21

Big Toe

Question 22

Digit

Answer 22

latin root

fingers and toes

Question 23

how many phalanges in each hand/foot

Answer 23

14

Question 24

list the three fetal bones that make up the acetabulum

Answer 24

Ilium-superior
Ischium-inferior, posterior
Pubis-inferior, anterior

Question 25

Name our largest sesamoid bone

Answer 25

patella

Question 26

Sesamoid bone

Answer 26

-bone formed in tendon

Question 27

name the bones of the pelvic girdle

Answer 27

- Coxal bone - -ilium, ischium pubis fused - sacroiliac joint- articulated with sacrum (unlike most joints b/c its rough) - Iliac crest- most superior edge (hipbone) - Ischial Tuberosity- anchor hamstring rough bumpy, sticks out - Obturator foramen- sciatic nerve and arteries pass - Pubis symphysis-made of fibrocartilage, joining two sides of pelvic bone. - Acetabulum- where femur articulates, points laterally, all three parts contribute to this socket

Question 28

Coxal Bone

Answer 28

formed by the joining fetal bones the Illium, Ischium, and Pubis bone

Question 29

Illium

Answer 29

the most superior bone of the coxal bone

Question 30

Ischium

Answer 30

inferior and posterior of the coxal bone

Question 31

Pubis

Answer 31

Inferior and anterior of the coxal bone

Question 32

Sacroiliac joint

Answer 32

Articulates with the sacrum, posterior. (rough, unlike other joints)

Question 33

Iliac Crest

Answer 33

most superior edge (hip bone)

Question 34

Ischial Tuberosity

Answer 34

Sticks out, rough and bumpy, anchors hamstring muscle inferior posterior enge

Question 35

Obturator Foramen

Answer 35

big hole where arteries and sciatic nerve passes

Question 36

Pubic symphysis

Answer 36

connection between R&L fibrocartilge

Question 37

Acetabelum

Answer 37

The joint socket that articulates with femur, points laterally

Question 38

Pelivc Appendage

Answer 38

- 30 bones - Femur, articulates with acetabulum with the coxal bone, distally articulates with the patella. The condyles articulate with the condyles of the tibia. - Patella-sesmoid bone of the knee, articulates only with the femer - Tibia- medial bone of the shin(the larger) articulated with the fibula both proximally and distally. Also articulates with the tarsals - Fibula-lateral bone- articulates with the tibia and tarsals - Tarsals-7- then articulate with metatarsals and phalanges. (including the hallux)

Question 39

Femer

Answer 39

Thigh bone strongest bone in the body Head- articulates with the acetabulum- proximal, medial -greater and lesser trochanter- proximal, rough and bumpy for muscle attachment, (only one in body) -Lateral and medial condyles- smooth and articular, medial side of head -Lateral and medial epicondyles- bony projection above the knee -linea aspera- posterior side for muscle attachment

Question 40

Patella

Answer 40

Knee cap | articulates with the femur only

Question 41

Tibia

Answer 41

- Medial bone of the leg - lateral and medial condyles-proximal end articulates with femur for knee joint - Tibial tuberosity- bump on the proximal and anterior for quad muscle attachment

Question 42

Fibula-

Answer 42

Lateral bone of the leg- | -lateral malleoulus- the outside ankle bone

Question 43

Tarsal bones

Answer 43

7 of them - Calcaneous- largest tarsal, heel bone, - Talaus- second largest tarsal, articulates with the tibia and fibula

Question 44

Medatarsals

Answer 44

5 bones of the foot numbered 1 with the big toe to 5 with the pinkey side

Question 45

Phalanges

Answer 45

same as hands 14 bones 2 in toe, called the hallux

Question 46

Coronoid process

Answer 46

Ulna. Inferior process of the semilunar notch

Question 47

Anterior superior spine

Answer 47

Ilium

Question 48

Posterior superior spine

Answer 48

Ilium

Question 49

Anterior inferior spine

Answer 49

Iliam

Question 50

ishial Tuberosity

Answer 50

Ischium

Question 51

Lesser and greater sciatic notches

Answer 51

Ischium

Question 52

Gluteal Tuberosity

Answer 52

Femer

Question 53

Tibial Tuberosity

Answer 53

Tibia