When a tennis player elevates her shoulder during a serve, the clavicle rolls in a(n) ____________________ direction and glides in a(n) ____________________ direction on the clavicular notch at the sternoclavicular joint
a. superior, superior
b. inferior, inferior
c. superior, inferior
d. inferior, superior
ANS: C
As a person raises his or her arm overhead, the lateral end of the clavicle will raise in a superior direction. Given the convex nature of the sternal end of the clavicle and the concave nature of the articular surface of the manubrium and the first costal cartilage, this will lead to sliding of the clavicle in the sternoclavicular joint in the opposite direction of the lateral end of the clavicle.
You might also like to view...
When women drink alcohol during pregnancy, they can cause significant brain damage and other impairments in the fetus; this condition is known as
A. teratogens B. fetal alcohol effects C. fetal alcohol syndrome D. alcoholic hepatitis
Acute and chronic rheumatic pancarditis:
Select the correct code for each of the diagnoses: A) I01.8, I09.89 B) I51.89. C) I01.0, I09.2. D) I01.0, I09.0.
________ prevent healthcare workers from exposing themselves and others to infections.
Fill in the blank(s) with the appropriate word(s).
The portion of the renal cortex that extends between the pyramids is the ________.
A. renal column B. renal pelvis C. renal cortex D. renal papilla E. renal medulla