Chapter 8 - Review

Question 1

What is primarily responsible for stabilizing, positioning, and bracing the pectoral girdle?

Answer 1

Muscles

Question 2

In anatomical position, the ulna lies…

Answer 2

Medial to the radius

Question 3

The point of the elbow is actually the __ of the ulna

Answer 3

Olecranon

Question 4

The bones of the hand articulate distally with the…..

Answer 4

Phalanges

Question 5

The epiphysis of the femur articulates with the pelvis at the…

Answer 5

Acetabulum

Question 6

What is the name of the flexible sheet that interconnects the radius and ulna?

Answer 6

Interosseous membrane

Question 7

The presence of tubercles on bones indicate the positions of….

Answer 7

-tendons and ligaments
-muscle attachment

Question 8

At the glenoid cavity, the scapula articulates with the proximal end of the…..

Answer 8

Humerus

Question 9

What are 4 structural characteristics of the pelvic girdle that adapt it to the role of supporting the weight of the body?

Answer 9

-heavy bones
-strong and stable articulating surfaces
-limited range of movement at some of the joints within the pelvic girdle
-the arrangement of ligaments surrounding the joints

Question 10

The large foramen between the pubis ramus and ischial ramus is the….

Answer 10

Obturator foramen

Question 11

The fibula provides lateral stability for the___

Answer 11

Ankle

Question 12

Does the fibula articulate with the femur?

Answer 12

No

Question 13

Is the fibula part of the knee joint?

Answer 13

No

Question 14

What is the tarsal bone that accepts weight and distributes it to the heel or toes?

Answer 14

The talus

Question 15

What is the difference in skeletal structure between the pelvic girdle and the pelvis?

Answer 15

The pelvic girdle consists of the coxal bones. The pelvis is a composite structure; it consists of the coxal bones of the appendicular skeleton and the sacrum and coccyx of the axial skeleton

Question 16

Why would a self-defense instructor advise a student to strike his assailant’s clavicle?

Answer 16

The clavicles are small and fragile, so they are easy to break. Once this part of the pectoral girdle us broken, the assailant would no longer have efficient use of their arms

Question 17

Does the pelvis contain bones from the axial and appendicular skeletons?

Answer 17

Yes

Question 18

Name 4 things that would be helpful in determining the age of a skeleton

Answer 18

-the number of cranial sutures
-the size and roughness of the markings of bones
-the absence of presence of fontanelles
-the presence or absence of epiphyseal cartilages

Question 19

Why would a person suffering from osteoporosis be more likely to suffer a broken hip than a broken shoulder?

Answer 19

In osteoporosis, a decrease in the calcium content of the bones leads to bones that are weak and brittle. Because the hip must help support the body’s weight, any weakening of the hip bones may result in their breaking under the weight of the body. The shoulder, by contrast, is not a load-bearing joint and thus is not subject to the same great stresses or strong muscle contractions as the hip joint