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WorksheetsMuscular System
Total questions: 20
Worksheet time: 10mins
Which of these is NOT a major task of the muscular system?
Movement for your body
Maintaining posture
Heat production for the body
Making red blood cells
Which of the following words means “the ability to recoil or bounce back to the original shape”?
excitability
contractability
extensibility
elasticity
Which type of muscle is involuntary and makes up many of your internal organs?
skeletal
smooth
gastrointestinal
cardiac
Which type of muscle(s) is/are nonstriated?
Skeletal Muscle
Cardiac Muscle
Smooth Muscle
Which membrane covers an individual muscle fiber?
Endomysium
Epimysium
Perimysium
Myomesium
When Calcium ions enter the neuromuscular junction, what neurotransmitter is released across the synaptic cleft?
Calcium
K+
Na+
Acetycholine
What attaches muscle to bone?
Ligaments
Tendons
Sliding Filaments
Sarcomeres
When you do sit-ups, your rectus abdominus is the _________________ and the latissimus dorsi is the
insertion; origin
origin; insertion
antagonist; prime mover
prime mover; antagonist
How much ATP is used in each myosin/actin cross-bridge cycle?
1
2
4
3
When you become out of breath and your muscles begin to burn during a workout, this is caused by
lack of oxygen
lack of sodium
lack of calcium
lack of glucose
During rigor mortis, __________ floods the muscle fibers but a lack of ____________ prevents them from detaching.
Calcium, ATP
ATP, Calcium
oxygen, ATP
ATP, oxygen
Comes in from a nerve cell to remove molecules blocking active sites
Calcium
ATP
Oxygen
Actin
Prepares a myosin head for its power stroke
Calcium
ATP
Oxygen
Epimysium
Myofilament that is essential to muscle contraction
Sarcoplasmic reticulum
Oxygen
ATP
Epimysium
Essential to making plenty of ATP in cellular respiration
Oxygen
ATP
Actin
Calcium
Outer membrane found around the belly of the muscle
Epimysium
Oxygen
ATP
calcium
Myofilament that is essential to muscle contraction
Actin
ATP
Oxygen
Calcium
The deltoid is attached to the clavicle and the humerus.
clavicle
humerus
Both
What was the name of Stephen Hawkin's first wife?
Jane
Elaine
Jennifer
Maria
When was Stephen Hawking diagnosted with ALS
in high school
in college
after graduating college
during his childhood
