Muscular System and Mechanical Advantage Quiz

Triceps brachii extends the forearm by contracting.

The diaphragm is the primary muscle responsible for breathing.

Deltoid is responsible for abducting the arm.

Hamstrings are responsible for flexing the knee joint.

Triceps brachii extends the elbow joint.

Sarcomere is the basic structural and functional unit of a muscle contraction.

Skeletal muscle is striated (striped) and under voluntary control.

Myalgia is the medical term for a muscle strain.

Smooth muscle is responsible for peristalsis in the digestive system.

Acetylcholinesterase breaks down acetylcholine at the neuromuscular junction.

Mechanical advantage = Effort force / Load force.

Mitochondria is often called the 'powerhouse' of the cell due to its role in energy production.

Perimysium is the connective tissue surrounding a muscle bundle.

Muscles do not store calcium; it is stored in the bones.

Acetylcholine is the neurotransmitter released at the neuromuscular junction.