Biology 211 Anatomy & Physiology I Muscle

Gross Anatomy of Muscle Lab: Identification of individual muscles Some: Origin Insertion Function Lecture: Not responsible for identification But: Should understand some concepts

(Should understand some concepts) 1. Each muscle has a size and shape specialized for its function

(Should understand some concepts) 1. Each muscle has a size and shape specialized for its function 2. Muscles often act in groups

(Should understand some concepts) 1. Each muscle: size and shape specialized for its function 2. Muscles often act in groups 3. Each muscle may have different functions in different types of movement

(Each muscle may have different functions in different types of movement) 1. Prime mover or agonist 2. Synergist 3. Antagonist 4. Fixator

(Each muscle may have different functions in different types of movement) 1. Prime mover or agonist 2. Synergist 3. Antagonist 4. Fixator

Go over muscles you studied in lab and Be sure you understand how these act as agonists, antagonists, synergists, and fixators. On lecture exams: You may be asked to identify muscles with each of these four functions at the shoulder elbow wrist hip knee ankle