muscular system

Question 1

types of muscle tissue

three types of muscles

Answer 1

skeletal
cardiac
smooth

Question 2

types of muscle tissue

skeletal muscle often attaches to

Answer 2

bone and is involved in the movement of bones

Question 3

types of muscle tissue

skeletal muscle is

Answer 3

striated and very strong

Question 4

types of muscle tissue

skeletal muscle is the only

Answer 4

voluntary muscle tissue in the body

Question 5

types of muscle tissue

cardiac muscle can be found in the

Answer 5

heart and is also striated

Question 6

types of muscle tissue

cardiac muscle cannot be controlled

Answer 6

consciously, making it an involuntary muscle

Question 7

types of muscle tissue

smooth muscle can be found in the

Answer 7

walls of hallow organs, such as the stomach and intestines;

in the walls of passageways such as blood vessels

and elsewhere throughout the body such as the eyes

the tracts of the reproductive system

and the skin

Question 8

types of muscle tissue

the weakest of all muscle tissues and is considered an involuntary muscle because it is controlled by the unconscious part of the brain

Answer 8

smooth muscle

Question 9

structure and function of muscles

most skeletal muscles are attached to bones by a

Answer 9

tendon

Question 10

structure and function of muscles

tendons are

Answer 10

tough bands of connective tissue that have strong collagen fibers

Question 11

structure and function of muscles

strong collagen fibers firmly attach the

Answer 11

muscle to the bone

Question 12

structure and function of muscles

muscles move by

Answer 12

contracting and shortening their length which pulls on the tendons moving one bone closer to another bone that is stationary

Question 13

structure and function of muscles

skeletal muscles are names based on many factors such as their

Answer 13

location
shape
size

Question 14

structure and function of muscles

skeletal muscles rarely work

Answer 14

alone but rather often work in groups to produce movements

Question 15

structure and function of muscles

muscles contain long

Answer 15

myofibrils made of sarcomere units each consisting of long strands of proteins called “actin” and “myosin”

Question 16

structure and function of muscles

actin

Answer 16

thin filaments

Question 17

structure and function of muscles

myosin

Answer 17

thick filaments

Question 18

nerves control muscles in the nervous system

each muscle fiber is connected to a

Answer 18

nerve fiber

Question 19

nerves control muscles in the nervous system

for the entire muscle to move it takes a

Answer 19

concreted effort by many nerves and fibers and the use of adenosine triphosphate (ATP) to power the contraction and relaxtion

Question 20

nerves control muscles in the nervous system

when a muscle is relaxed

Answer 20

myosin and actin filaments are not attached

Question 21

nerves control muscles in the nervous system

when the muscles contract the filaments

Answer 21

bind and are pulled together

Question 22

nerves control muscles in the nervous system

when the brain wants to send a message to a particular part of the body, the nervous system sends a

Answer 22

signal to a muscle

Question 23

nerves control muscles in the nervous system

actin and myosin proteins in the muscle slide past each other creating either a

Answer 23

contraction or a relaxation of the muscle

these 2 basic motions are responsible for all muscle movement

Question 24

nerves control muscles in the nervous system

ideally muscles respond to nerve impulses in specific ways.

Receptors in muscles allow them to

Answer 24

receive a signal and respond with the appropriate magnitude and movement.

this signal can be disrupted by disorders ranging from muscle strain to muscular dystrophy

Question 25

practice problems

which of the following are the thick filaments in a muscle cell?

a. actin
b. myosin
c. myofibrils
d. sarcomere

Answer 25

b. myosin

Question 26

practice problems

which of the following best describes the role of tendons?

a. they connect muscle to bone
b. they connect bone to bone
c. they connect tendons to muscles
d. they connect cartilage to bone

Answer 26

a. they connect muscle to bone

Question 27

practice problems

which of the following types of muscle tissue is voluntary?

a. skeletal
b. smooth
c. cardiac
d. nervous

Answer 27

a. skeletal

Question 28

practice problems

which of the following muscles are located at the shoulder?

a. deltoids
b. pectorals
c. trapezius
d. abdominals

Answer 28

a. deltoids