
Chapter 8 Test Anatomy & Physiology 1e

Quiz
•
Science
•
11th Grade
•
Hard
Standards-aligned
ZOE JOHNSTON
Used 7+ times
FREE Resource
53 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A sarcomere is best described as _______.
a part of the sarcoplasmic reticulum
a group of fascicles
a group of myofibrils
a unit within a myofibril
All of the choices are correct.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Myofibrils are composed primarily of
actin and myosin
ATP and ADP
troponin and tropomyosin
fascia and tendons
perimysium and endomysium
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A motor unit typically includes
muscle fibers only
motor neurons only
several motor neurons and one muscle fiber
one motor neuron and several muscle fibers
several motor neurons and several muscle fibers
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Endomysium separates individual muscle fibers from each other.
True
False
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A motor neuron and the muscle fibers that it controls constitute a motor unit.
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A broad sheet of dense connective tissue that connects muscle to muscle is called _________________.
aponeurosis
ligament
tendon
fascia
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The electrical impulse that triggers a contraction travels deep into a skeletal muscle fiber by means of:
sarcoplasmic reticulum
transverse tubules
mitochondria
motor end plates
gap junctions
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