ACSM-EP Anatomy & Physiology 3

Question 1

The oxygen-hemoglobin dissociation curve shifts rightward in response to which condition?

Accepted Answer

Increased 2,3-DPG

Answer

Increased 2,3-DPG, along with decreased pH, increased CO2, and increased temperature, shifts the curve right, promoting O2 unloading to tissues.

Question 2

Which of the following bones is part of the axial skeleton?

Accepted Answer

Sternum

Answer

The sternum is part of the axial skeleton, which includes the skull, vertebral column, and thoracic cage.

Question 3

Muscle spindles primarily detect changes in which property of skeletal muscle?

Accepted Answer

Muscle length and rate of length change

Answer

Muscle spindles (intrafusal fibers) are stretch receptors sensitive to changes in muscle length and the velocity of that length change.

Question 4

The left ventricle pumps blood into which vessel?

Accepted Answer

Aorta

Answer

The left ventricle ejects oxygenated blood into the aorta for systemic circulation.

Question 5

Which type of cartilage covers the articulating surfaces of synovial joints?

Accepted Answer

Hyaline cartilage

Answer

Hyaline cartilage provides a smooth, low-friction surface on the articulating ends of bones in synovial joints.

ACSM Practice Test