Final Exam: BIOS 252 / BIOS252 Anatomy and Physiology II Exam Review| Questions and Verified Answers (2024/ 2025) Chamberlain

Final Exam: BIOS 252 / BIOS252 Anatomy
and Physiology II Exam Review| Questions
and Verified Answers (2024/ 2025)
Chamberlain
QUESTION
What is an agonist?


Answer:
Prime mover




QUESTION
What is an antagonist?


Answer:
Opposes action of the prime mover




QUESTION
What is a synergist?


Answer:
An "assistant" or "helper" muscle to the agonist




QUESTION
What is a fixator?


Answer:
Stabilizes muscles

,QUESTION
What is the origin?


Answer:
Point of origin for a muscle with NO movement




QUESTION
What is the insertion


Answer:
Where the muscle inserts, non-stable end where most of the movement associated with the
muscle is performed




QUESTION
In a first class lever system, what is in the middle?


Answer:
Fulcrum




QUESTION
In a second class lever system, what is in the middle?


Answer:
Load

, QUESTION
In a third class lever system, what is in the middle?


Answer:
Effort

QUESTION
What are the neuroglial cells of the CNS and their functions?


Answer:
Astrocytes (blood brain barrier), Oligodendrocytes (myelinator--can myelinate MULTIPLE CNS
neuron axons), Microglial (phagocyte/clean-up cells), Ependymal Cell (CSF production)




QUESTION
What are the neuroglial cells of the PNS and their functions?


Answer:
Satellite cells (cover the surface of nerve cell bodies in sensory, sympathetic, and
parasympathetic ganglia), Schwann cells (myelinator--only myelinates ONE PNS cell)




QUESTION
Saltatory conduction happens in which type of neuron? Is this fast or slow conudction?


Answer:
Myelinated neurons, fast




QUESTION
Continuous conduction happens in which type of neuron? Is this fast or slow conduction?


Answer: