Human Anatomy and Physiology : Muscles

Study concepts, example questions & explanations for Human Anatomy and Physiology

varsity tutors app store varsity tutors android store

Example Questions

Example Question #151 : Muscles

Which make up the wrist and the body of the hand?

Possible Answers:

tarsals and phalanges

carpals and metacarpals

carpals and phalanges

tarsals and metatarsals

Correct answer:

carpals and metacarpals

Explanation:

The carpals and metacarpals make up the wrist and the body of the hand, respectively. The tarsals and metatarsals make up the ankle and the body of the foot, respectively. The phalanges are the bones of the fingers and toes.

Example Question #151 : Muscles

If the efferent arteriole becomes constricted, what is likely to occur in the nephron?

Possible Answers:

The increased osmotic pressure will elevate glomerular filtration rate

Fluid backup will cause the nephron to rupture

Glomerular filtration rate will remain the same

The increased hydrostatic pressure will elevate glomerular filtration rate

Glomerular filtration rate will decrease due to a loss in blood pressure

Correct answer:

The increased hydrostatic pressure will elevate glomerular filtration rate

Explanation:

The efferent arteriole carries blood away from the glomerulus, and so if it is constricted, the blood pressure behind it will increase. The raise in blood pressure will result in an increase in hydrostatic pressure, pushing additional fluid through the glomerulus i.e elevated glomerular filtration rate. While high hydrostatic pressure does cause damage to the nephron, the nephron rupturing is too extreme of a statement and requires assumptions that are not necessarily valid.

Learning Tools by Varsity Tutors