Structure and Function of the Human Body - Muscular and Skeletal Systems

Vocabulary flashcards covering skeletal muscle actions, joint classifications, and contraction types from the ALHS1011 Structure & Function Human Body course.

Deltoid

The muscle that serves as the prime mover in the abduction of the arm at the shoulder joint.

Acetylcholine (ACh) permeability alteration

The initial event where ACh causes temporary permeability to sodium, triggering skeletal muscle to generate an action potential and contract.

Hinge joint

A type of joint, exemplified by the elbow joint, in which movement occurs in only one plane.

Quadriceps muscle group

The group of muscles that acts as the prime mover in the extension of the knee.

Isotonic contraction

The type of muscle contraction characterized by the muscle shortening and movement occurring.