BIO105 Bones Muscles Joints Lab

Front

What is the role of the triceps brachii in a bicep curl?

Back

The triceps brachii acts as the extensor muscle, opposing the flexion of the biceps brachii.

Front

What type of muscle contraction is required for leg abduction?

Back

Isotonic muscle contraction is required for leg abduction.

Front

What type of joint is the elbow?

Back

The elbow is a hinge joint, allowing for flexion and extension.

Front

What is abduction in terms of joint movement?

Back

Abduction is the movement of a limb away from the midline of the body.

Front

What are fast-twitch muscle fibers?

Back

Fast-twitch muscle fibers are designed for quick, powerful movements, such as sprinting or weightlifting.

Front

What is the function of the biceps brachii?

Back

The biceps brachii primarily functions as a flexor of the elbow.

Front

What is isotonic contraction?

Back

Isotonic contraction is a type of muscle contraction where the muscle changes length while producing movement.

Front

What is the difference between isotonic and isometric contractions?

Back

Isotonic contractions involve movement and change in muscle length, while isometric contractions involve muscle tension without movement.

Front

What is a pivot joint?

Back

A pivot joint allows for rotational movement around a single axis, such as the joint between the first and second cervical vertebrae.

Front

What is flexion in joint movement?

Back

Flexion is the bending movement that decreases the angle between two body parts.