"Pull-Ups" Are Easier to Do with the Hands Supinated Than

question 71

Multiple Choice

"Pull-ups" are easier to do with the hands supinated than with the hands pronated. An explanation for this is

• A) the biceps brachii is attached to the radial tuberosity.
• B) the biceps brachii supinates the forearm.
• C) if the forearm is pronated, the biceps brachii is ineffective in flexing the forearm.
• D) the brachialis is a much smaller muscle than the biceps brachii.
• E) All of these contribute to a full and proper explanation.

---

Definitions:

Cornea

The transparent front part of the eye that covers the iris, pupil, and anterior chamber, responsible for focusing most of the light that enters the eye.

Retina

A light-sensitive layer at the back of the eye that converts light images into nerve signals that are sent to the brain.

Pupil

The circular opening in the center of the iris of the eye, which regulates the amount of light that enters.

Lens

A transparent optical component that focuses or disperses light rays, used in a variety of devices such as glasses, cameras, and microscopes to enhance vision or capture images.