Exam 3 Dr. Mon

Front

Na+ _____ the cell passively via channels.

Back

enters

Front

There is a ____ concentration of Na+ inside the cell than outside.

Back

lower

Front

Maximus, Minimus, Longus are all examples of:

Back

Muscle size

Front

The pectoralis major produces flexion while latissimus dorsi produces extension. The latissimus dorsi serves as a:

Back

antagonist

Front

Ion concentrations are regulated homeostatically, so equilibrium potentials should change often. True or False?

Back

False

Front

What type of lever is this?

Back

Second-class lever

Front

Define 'antagonist' in muscle function.

Back

A muscle that opposes the action of another.

Front

What is the role of the pectoralis major?

Back

It produces flexion of the shoulder.

Front

What is a 'prime mover' in muscle action?

Back

The primary muscle responsible for a specific movement.

Front

Explain the concept of homeostasis in relation to ion concentrations.

Back

Homeostasis maintains stable internal conditions, including ion concentrations.