Exam 8: Muscular System

Match each of the terms with its definition or explanation. -Another name for voluntary muscle

All motor units in a given muscle have the same threshold stimulus.

Neither the intercostal muscles nor the diaphragm can be seen from outside the body.

The loose connective tissue outside the muscle organs that forms a flexible,sticky "packing material" between the muscles,bone,and skin is called

Explain the difference between an isotonic and isometric muscle contraction.

A single motor neuron with all the muscle cells it innervates is called a

Tonic contractions

All muscles specialize in contraction or shortening.

The breakdown of ATP is the energy source that helps supply heat to the body.

The hand position when the body is in anatomical position is

In the sliding filament model of muscle contraction,bridges are formed between the myosin and actin.

Explain how a muscle becomes fatigued.What is the oxygen debt and how is it repaid?

In order for the necessary bridges to form,potassium must be released from the endoplasmic reticulum.

Match the body movement term with its definition. -Moving part of the body toward the midline of the body

What allows you to lift different weights with the same muscle is the

Tension during muscle lengthening is often called

A motor neuron and all the muscle cells it stimulates are called a motor unit.

Match each of the terms with its definition or explanation. -Protein that makes the thin myofilament

The muscle attachment to the more stationary bone is called the

When calcium is released into the sarcomere