Quiz 5 - Skeletal Muscle Function Flashcards Preview

Anatomy > Quiz 5 - Skeletal Muscle Function > Flashcards

Flashcards in Quiz 5 - Skeletal Muscle Function Deck (10):
1

characteristics of muscles

excitability - ability to respond to stimulation
contractility - ability to shorten or contract actively
extensibility - ability to be stretched or extended
elasticity - ability to recoil and resume its original length after being stretched

2

types of muscle tissue

skeletal
smooth
cardiac

3

skeletal muscle

attached to bone
striated
elongated
multinucleate cells
allows locomotion and body movement

4

smooth muscle

in walls of hollow organs (intestine, blood vessels, bladder)
nonstriated
mononucleate cells
forces blood and substances through body channels

5

cardiac

in the heart
striated
monoculeated cells
allows heart to pump blood through blood vessels

6

Skeletal muscle functions

produce movement
maintain posture
stabilize joints
generate heat

7

producing movement

muscles pull on tendons and move bones for body movement

8

maintain posture

enables us to maintain erect/seated posture - against gravity's effects

9

stabilize joints

supports the joints of the skeleton

10

generate heat

contracing muscles generates heat, heat lost from muscles helps maintain our body temperature