The Skeletal System (Appendicular) Pt. 1

Question 1

What is another name for the collarbone?

Answer 1

Clavicle

Question 2

What describes the clavicle (collarbone)? (2)

Answer 2

• Slender
• Doubly curved bone

Question 3

What two things does the clavicle attach to and how does it attach to both of them? (2)

Answer 3

• Attaches to the manubrium of the sternum medially
• And to the scapula laterally

Question 4

What does the clavicle help to form?

Answer 4

Helps to form the shoulder joint

Question 5

What are the scapulae (plural) or scapula (singular)?

Answer 5

Shoulder blades

Question 6

What shape are the scapulae and what are they commonly called? (2)

Answer 6

• Triangular
• Commonly called “wings”

Question 7

What do the scapulae do when the arms are moved in what certain way? (2)

Answer 7

• They flare
• When arms are moved posteriorly

Question 8

What does each scapula have regarding the body and two of what? (2)

Answer 8

• Has a flattened body
• Two important processes

Question 9

What is the acromion?

Answer 9

The enlarged end of the spine of the scapula

Question 10

What does the acromion connect with and how to form what joint? (2)

Answer 10

• Connects with the clavicle laterally
• To form the acromioclavicular joint

Question 11

What does the coracoid process point over?

Answer 11

Points over the top of the shoulder

Question 12

What does the coracoid process anchor of the arm?

Answer 12

Anchors some of the muscles of the arm

Question 13

What is the glenoid cavity and what does it receive?

Answer 13

A shallow socket that receives the head of the arm bone

Question 14

What does the shoulder girdle have that is exceptional? What can easily be done to it? (2)

Answer 14

• The shoulder girdle has exceptional flexibility
• Because of this, it can easily be dislocated

Question 15

What are the greater and lesser tubercles? What are they opposite of?

Answer 15

Two bony projections opposite the head

Question 16

What are the greater and lesser tubercles sites of?

Answer 16

Sites of muscle attachment

Question 17

What is the radius?

Answer 17

The lateral bone

Question 18

What side is the radius on in terms of the forearm?

Answer 18

On the thumb side of the forearm

Question 19

What is the ulna?

Answer 19

The medial bone

Question 20

What side is the ulna on in terms of the forearm?

Answer 20

On the little finger side of the forearm

Question 21

How many carpal bones are there?

Answer 21

Eight

Question 22

How many metacarpal bones are there?

Answer 22

Five

Question 23

How many bones of the phalanges are there?

Answer 23

Fourteen

Question 24

What two things form the pelvic girdle? What other name do they have? (2)

Answer 24

• Two coxal bones
• Also called ossa coxae

Question 25

What are the coxal bones (ossa coxae) commonly known as?

Answer 25

Commonly called the hip bones

Question 26

What things make up the bony pelvis? (3)

Answer 26

• Two coxal bones
• Sacrum
• Coccyx

Question 27

What does the bony pelvis include?

Answer 27

Pelvic girdle

Question 28

How does the coxal (hip) bone form? What fuses to form it?

Answer 28

Made up from the fusion of three bones

Question 29

What does the ilium connect to posteriorly with at what joint?

Answer 29

Connects posteriorly with the sacrum at the sacroiliac joint

Question 30

What bone is the ilium? What describes it? What does it make up?

Answer 30

A large, flat, bone that makes up most of the hip

Question 31

What characteristic of the female pelvic girdle affects the sacrum? (2)

Answer 31

• Sacrum is shorter
• and less curved

Question 32

What characteristic of the female pelvic girdle affects the ischial spines, affecting the inlet? (3)

Answer 32

• Ischial spines are shorter
• and farther apart
• thus, the inlet is larger

Question 33

Female girdle: Why is the pubic arch more rounded?

Answer 33

Because the angle of the pubic arch is greater

Question 34

How many regions is the bony pelvis divided into?

Answer 34

2

Question 35

What is the false pelvis superior to?

Answer 35

Superior to the true pelvis

Question 36

What is the false pelvis area medial to?

Answer 36

Area medial to the flaring portions of the ilia (plural for ilium)

Question 37

What is plural for ilium?

Answer 37

Ilia