Intro to Skeletal Muscles Flashcards

1
Q

Are skeletal muscles voluntary or involuntary?

A

voluntary but some are involuntary with reflexes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

skeletal muscle characteristics

A

multinucleate, striated, long/cylindrical, run parallel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Are smooth muscles voluntary or involuntary?

A

involuntary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

smooth muscle characteristics

A

single central nucleus, short, spindle shape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

where are skeletal muscles found?

A

attached to bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

where are smooth muscles found?

A

found in hallow organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Are cardiac muscles voluntary or involuntary?

A

involuntary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

cardiac muscle characteristics

A

rectangular, straited, short fibers, one nucleus per cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

where are cardiac muscles found?

A

heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Muscles are derived from what?

A

mesenchymal cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

fasciculus

A

small bundle of nerve, muscle or tendon fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what innervates all muscles?

A

spinal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

muscle body is also know as

A

belly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

aponeurosis

A

thin sheath of connective tissue that helps connect your muscles to bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

long skeletal muscles movement and contraction

A

wide movement, small force of contraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

short skeletal muscles movement and contraction

A

shore range of movement, high force of contraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

attachment to stationary end of muscle

A

origin

18
Q

attachment to mobile end of muscle

A

insertion

19
Q

types of skeletal muscles

A

red and white

20
Q

muscle fiber directions

A

parallel, pennate, unipennate, bipennate, multipennate, spiral, cruciate

21
Q

parallel muscles

A

long, parallel to the line of pull with wide range of movement

22
Q

pennate muscles

A

short, oblique to line of pull

23
Q

unipennate

A

one side of the tendon

24
Q

bipennate

A

two sides of the tendon

25
Q

multipennate

A

series of bipinnate muscles

26
Q

spiral muscles

A

twisted fibers

27
Q

cruciate muscles

A

superficial and deep plane

28
Q

spurt muscles

A

acceleration movement. originate away, insert close

29
Q

shunt muscles

A

stabilizing. originate near insert away

30
Q

spurt muscle force of contraction

A

force of contraction across the bone

31
Q

shunt muscle force of contraction

A

force of contraction along the bone

32
Q

fasciae

A

connective tissue that forms attachment for muscles

33
Q

platysma muscle

A

sheet of skeletal muscle attached to skin of neck and head

34
Q

platysma muscle origin

A

dorsal raphe of neck

35
Q

platysma muscle insertion

A

cheek and commissure of labia

36
Q

platysma muscle action

A

draws lips caudad

37
Q

platysma muscle innervation

A

facial nerve

38
Q

cutaneus trunk muscle

A

sheet of skeletal muscle attached to skin of thorax and abdomen

39
Q

cutaneus trunk muscle origin

A

superficial fascia of trunk

40
Q

cutaneus trunk muscle insertion

A

caudal border of deep pectoral muscle and fascia of medial brachium

41
Q

cutaneus trunk muscle action

A

twitch of skin

42
Q

cutaneus trunk muscle innervation

A

lateral thoracic nerve