Muscular System Ch.8

What are the 3 types of muscle tissue?

• Thigh, Calf, & Shoulder
• Traps, Forearm, & Abs
• Hamstring, Biceps, & Triceps
• Smooth Muscle, Cardiac Muscle, & Skeletal Muscle

Which muscle type is found in your stomach, bladder, and intestines?

• Skeletal
• Smooth
• Cardiac
• Straight

Which muscles are involuntary?

• skeletal
• cardiac
• smooth
• smooth and cardiac

When a muscle contracts, it _______

• gets longer
• gets shorter
• gets thinner
• grows hair

Muscles always work in _____

• pairs
• groups of 3
• bones
• joints

Which best describes skeletal muscle?

• Skeletal muscle is elastic

• Skeletal muscle is voluntary

• Skeletal muscle is able to contract

• Skeletal muscle is attached to organs

What two chemicals are necessary for muscle contraction to occur?

• Niacin and Potassium
• Calcium and ATP
• Sodium and Potassium
• Ach and Potassium

Skeletal Muscle contraction is initiated when the ________ sends a message to the muscle cell.  

• Muscle cell
• Neuron
• Gland
• None of the above

The neurotransmitter that signals muscle contraction is called...

• Ach
• Myosin
• Actin
• Calcium

The mechanism of muscle contraction.

• sarcoplasmic reticulum
• fasciitis
• sliding filament mechanism
• muscle cramps