MSK Lab #1

Question 1

Diaphysis

Answer 1

The main portion of long bones, also referred to as the shaft or body

Question 2

Head

Answer 2

One of the epiphyses. In most bones this is the most proximal portion but some exceptions do exist. E.g. Ulna

Question 3

Neck

Answer 3

The portion that attaches the head to the diaphysis

Question 4

Condyle

Answer 4

A rounded bony protrusion for articulation

Question 5

Epicondyle

Answer 5

A rounded/raised area superior to the condyle

Question 6

Tubercle

Answer 6

A raised area of bone for muscles attachment

Question 7

Tuberosity

Answer 7

A roughening on bone for muscle attachment

Question 8

Ala

Answer 8

A large flattened area resembling a wing

Question 9

Cornu

Answer 9

A hornlike structure

Question 10

Sulcus/groove

Answer 10

A groove on bone usually associated with a raised area and often has a tendon, nerve or blood vessel traveling through it.

Question 11

Foramen

Answer 11

A hole in the bone usually for passage of vessels or nerves

Question 12

Notch

Answer 12

An indentation in the bone usually to allow structures to pass between areas.

Question 13

Movements of the shoulder girdle

Answer 13

Scapula movements

Question 14

Elevation of scapula

Answer 14

Cranial movement

Question 15

Depression of scapula

Answer 15

Caudal movement

Question 16

Adduction/Retraction of scapula

Answer 16

Medial borer drawn closer together

Question 17

Abduction/Protraction of scapula

Answer 17

Medial border drawn away from each other

Question 18

Upward rotation of scapula

Answer 18

Inferior angle moves laterally and upwards

Question 19

Downward rotation of scapula

Answer 19

Inferior angle moves medially and downwards

Question 20

Where does the humerus bone hinge?

Answer 20

Glenohumeral Joint

Question 21

Extension of the humerus bone

Answer 21

Movement straight posteriorly

Question 22

Flexion of the humerus bone

Answer 22

Movement straight anteriorly

Question 23

Abduction of the humerus

Answer 23

Upward lateral movement of humerus out to the side away from the body

Question 24

Adduction of the humerus

Answer 24

Downward movement of humerus medially toward the body from abduction

Question 25

Lateral (External) Rotation

Answer 25

Movement of humerus around long axis of the bone away from the midline

Question 26

Medial (Internal) Rotation

Answer 26

Movement of humerus around long axis of the bone towards from the midline

Question 27

Superficial Back muscles are innervated by:

Answer 27

Ventral rami

Question 28

Pectoral region innervation:

Answer 28

Ventral rami