Topic 10: Skeletal System - Appendicular Skeleton

Question 1

What are the 4 components of the appendicular skeleton?

Answer 1

• Pectoral Girdle (upper limb girdle)
• Pelvic Girdle (lower limb girdle)
• Upper limb (in anatomical position)
• Lower Limb (in anatomical position)

Question 2

What are the components of the pectoral girdle? (2)

Answer 2

• clavicle
• scapula

Question 3

What is the clavicle? What is its function?

Answer 3

• collarbone
• connects axial and appendicular skeletons

Question 4

What does the clavicle articulate with?

Answer 4

• sternum (manubrium) and scapula (acromion process)

Question 5

What is the scapula? (2)

Answer 5

• shoulder blade
• spine (on posterior)

Question 6

What are the three parts of the scapula?

Answer 6

• acromion process
• glenoid fossa/cavity
• coracoid process

Question 7

What does the acromion process articulate with?

Answer 7

clavicle

Question 8

What does the glenoid fossa/cavity articulate with?

Answer 8

• head of humerous

Question 9

What does the coracoid process articulate with, and what is its function?

Answer 9

• does not articulate with other bones
• attaches muscles for arms and chest

Question 10

What are the components of the Pelvic girdle? (2)

Answer 10

• made with 2 os coxae (hip bones) each with 3 bones
• joints
  aka 6 bones 3 pairs

Question 11

What are the 3 bones of the pelvic girdle?

Answer 11

• ilium
• ischium
• pubis

Question 12

What does the ilium articulate with?

Answer 12

• sacrum

Question 13

What is the ischium?

Answer 13

• most inferior part = ischial tuberosity

Question 14

What is the pubis?

Answer 14

• left and right joined by pubic symphysis

Question 15

What are the joints in the Pelvic girdle? (3)

Answer 15

• pubic symphysis
• sacroiliac joint (sacrum + ilium)
• acetabulum

Question 16

What is the acetabulum? (2)

Answer 16

• articulates with head of femur
• all 3 bones of os coxa join here

Question 17

Name all 6 bones that are part of the Upper Limb (in anatomical position).

Answer 17

1) humerous
2) radius (lateral, think thumbs up)
3) Ulna (medial)
4) carpals (wrist)
5) metacarpals (palm)
6) phalanges (digits/fingers)

Question 18

How many carpals in your wrist per arm? Metacarpals? Phalanges?

Answer 18

• 8 carpals
• 5 metacarpals
• 14 phalanges
  total of 30 bones per arm and leg

Question 19

All Upper Limb Bones are ____ (long/short) bones, except ___.

Answer 19

• long
• carpals

Question 20

Name the 7 bones of the Lower Limb in anatomical postion.

Answer 20

1) femur (articulates w/ acetabalum)
2) Patella (knee cap)
3) tibia (medial)
4) fibula (lateral)
5) tarsals (Talus and calcaneus must memorize)
6) Metatarsals (sole)
7) phalanges (toes)

Question 21

What does the talus articulate with?

Answer 21

• tibia

Question 22

What does the calcaneus bone of tarsals make up?

Answer 22

• heel bone

Question 23

Name how many in the lower limb:
a) tarsals
b) metatarsals
c) phalanges

Answer 23

1) 7 tarsals
2) 5 metatarsals
3) 14 phalanges (each toe has 3, big toe has 2)

Question 24

ALL bones in the lower limb are long bones, except? (2)

Answer 24

• patella
• tarsals