Muscle Vocab

Fascia is a __________ that surrounds muscles, organs, and nerves.

connective tissue

A sarcomere is the __________ unit of a muscle fiber.

functional

The neuromuscular junction is the site where __________ and muscle fibers meet.

motor neurons

Acetylcholine is a neurotransmitter responsible for __________ muscle contraction at the neuromuscular junction.

stimulating

Myoglobin is a protein that binds __________ in muscle cells, facilitating oxygen storage and transport.

oxygen

A threshold stimulus is the __________ level of stimulation required to trigger a muscle contraction.

minimum

Recruitment of motor units refers to the process of activating additional __________ to increase muscle force.

motor neurons

An agonist muscle is the muscle that is primarily responsible for producing __________ during movement.

an action

Antagonist muscles work __________ the agonist to create balanced movement and control.

opposite of

Synergist muscles assist the agonist by __________ in the movement or stabilizing the joint.

adding strength