wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

The Muscular System

Total questions: 24

Worksheet time: 12mins

Name
Class
Date
1.

Which cellular process is used to get and store energy from the food that we eat?

a)

mitosis

b)

meiosis

c)

DNA repair

d)

cellular respiration

2.

Which involuntary muscle constitutes the main tissue of the walls of the heart?

a)

cardiac muscle

b)

smooth muscle

c)

vital organ muscle

d)

skeletal muscle

3.

Which muscle is responsible for most of the involuntary processes of your inner organs?

a)

cardiac muscle

b)

smooth muscle

c)

vital organ muscle

d)

skeletal muscle

4.

Which skeletal muscle's fleshy mass forms the prominence of the buttocks?

a)

the gluteus maximus

b)

the masseter

c)

the abductor pollicis brevis

d)

the gastrocnemius

5.

How many skeletal muscles are in the adult human body?

a)

250

b)

460

c)

520

d)

640

6.

Skeletal muscles, like all of your muscles, are only good at two things: ___

a)

contracting and relaxing

b)

pushing and pulling

c)

flexing and shortening

d)

sagging and lengthening

7.

Skeletal muscles thicken in the middle, at what's called the ___

a)

contraction region

b)

muscle belly

c)

engorged gut

d)

flex zone

8.

Skeletal muscles taper off on either end into a ___

a)

insertion point

b)

ligament

c)

tendon

d)

tether zone

9.

Tendons, that connect the muscle to the bone, are made of fibrous proteins, mostly ___

a)

trypsin

b)

pepsin

c)

elastin

d)

collagen

10.

A chicken breast is, or was, which muscle of a chicken?

a)

the latissimus dorsi

b)

the pectoralis major

c)

the quadriceps femoris

d)

the gluteus maximus

11.

Stringy muscle fascicles are each made up of lots and lots of smaller strands called ___

a)

muscle threads

b)

cilia

c)

muscle fibers

d)

stringlets

12.

Muscle cells are not like your run-of-the-mill somatic cells; For starters, they each have ___

a)

multiple nuclei

b)

thicker cell walls

c)

fewer mitochondria

d)

two set of chromosomes

13.

What is the Greek word for muscle, which is used as a prefix in biological terms?

a)

"mia"

b)

"mao"

c)

"myo"

d)

"moy"

14.

The Greek prefix "sarco-" means ___

a)

"flesh"

b)

"body"

c)

"engorged"

d)

"skin"

15.

The protein strands that make up a muscle cell are called ___

a)

sarcofibrils

b)

myofibrils

c)

myofilaments

d)

sarcomeres

16.

Each myofibril protein strand is divided lengthwise into segments called ___

a)

sarcofibrils

b)

heliofiles

c)

myofilaments

d)

sarcomeres

17.

Sarcomere function occurs through an interaction between two different kinds of protein strands called ___

a)

sarcostrands

b)

myostrands

c)

sarcofilaments

d)

myofilaments

18.

Which skinny strand of myofilament protein attaches to one of the ends of the sarcomere?

a)

actin

b)

myosin

c)

pepsin

d)

trypsin

19.

Which thick strand of myofilament protein is studded with little golf club shaped heads?

a)

actin

b)

myosin

c)

pepsin

d)

trypsin

20.

Two papers on the discovery of the "sliding filament model" of muscle contraction were published in what year?

a)

1936

b)

1945

c)

1954

d)

1963

21.

In a sarcomere, which ions change the shape of some of the proteins?

a)

sodium

b)

potassium

c)

calcium

d)

magnesium

22.

Two proteins wrapped around the actin, called tropomyosin and troponin, act as a kind of ___

a)

hard shell

b)

elastic band

c)

conductive sheath

d)

insulation

23.

What is the name of the membrane-bound structure, wrapped around each sarcomere, that stores calcium ions?

a)

smooth endoplasmic reticulum

b)

sarcoplasmic reticulum

c)

rough endoplasmic reticulum

d)

myosympathetic reticulum

24.

The energy from ATP is used to make the muscle relax; That's why, when you're dead, you get ___

a)

taphonomic changes

b)

livor mortis

c)

algor mortis

d)

rigor mortis