BIOS-252 Anatomy & Physiology II with Lab

Final Exam Study Guide – Biology 252

Where is calcium stored?

- sarcoplasmic reticulum

contractile proteins

- actin and myosin

regulatory proteins

- tropomyosin and troponin

structural proteins

- Titin

Nebulin

Alpha-actin

Myomesin

Dystrophin

isotonic contraction

- the tension developed in the muscle remains almost constant while the muscle changes

its length

isometric contraction

- the tension generated is not enough for the object to be moved and the muscle does

not change its length

Lever system components

- fulcrum: joints effort: muscles load: resistance being overcome

Agonist

- contracts and causes an action

Antagonist

- stretches and yields to the movement of the prime mover

Neuron Structure

central nervous system

- brain and spinal cord

sensory input

- Dorsal; Afferent