Champions Brokerage Sae Ch 1 Expected Questions With Verified Answers

CHAMBERLAIN UNIVERSITY A&P II EXAM 1 (MUSCLES
AND NERVES) EXPECTED QUESTIONS WITH VERIFIED
ANSWERS

Question 1.
Label the following: Triceps brachii

ANSWER




Question 2.
What is the function of epinephrine?

ANSWER
- hormone released in response to stress
- plays a role in metabolism, attention, focus, panic, and excitement



Question 3.
Describe voltage-gated channels

ANSWER
integral membrane proteins that enable the passage of selected inorganic ions across cell
membranes. they open and close in response to changes in transmembrane voltage.



Question 4.
Define eccentric isotonic contraction, and give example

ANSWER
muscles lengthen as it maintains tension

Example: lowering a bag back down with control





,Question 5.
Define convergent series

ANSWER
where the input comes from several neurons to make 1 output




Question 6.
What is the function of acetylcholine?

ANSWER
- involved in thought, learning, and memory
- associated with attention and awakening
- activate muscle action



Question 7.
Describe mechanically-gated channels

ANSWER
respond to mechanical vibration, pressure, touch, and stretching stimuli



Question 8.
Define sarcolemma

ANSWER
plasma membrane of a muscle cell






, Question 9.
Label the following: Frontalis

ANSWER




Question 10.
Label the following: Gluteus maximus

ANSWER




Question 11.
What are the hamstring muscles?

ANSWER
i. biceps femoris
ii. semitendinosus
iii. semimembraosus



Question 12.
What is the function of schwann cells?

ANSWER
create myelin sheaths