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Molina2020 Principles of Health Science > Muscular System > Flashcards

Flashcards in Muscular System Deck (16)
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1

Functions of the muscular system

movement, posture maintenance, stabilization of joints, generation of heat, protection of some internal organs

2

Types of muscles

cardiac, visceral/smooth, skeletal

3

cardiac

forms the walls of the heart and contract to circulate blood

4

visceral/smooth

found in the internal organs of the body such as the digestive system, respiratory system, blood vessels, and eyes

5

skeletal

40% of the body, attach to and cover the bony skeleton, cause movement

6

tendons

attach bone to muscle

7

ligaments

attach bone to bone

8

Muscle fibers stimulated by nerves ______ and cause _______

contract, movement

9

there are over _____ muscles in our body

600

10

muscles are ____ of total body weight

45%

11

bundles of muscle fibers help, together with the ___________ tissue

connective

12

excitability

ability to receive and respond to stimulus

13

contractibility

ability to shorten forcibly

14

extensibility

ability to be stretched

15

elasticity

ability to resume resting length

16

automaticity

ability of muscle to contract without a nerve supply