Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A&P > Ch 2: Respiratoy muscles > Flashcards

Ch 2: Respiratoy muscles Flashcards

1
Q

‘Sternocleidomastoid (function and description)

A

-elevate ribs, sternum
-stabilizes upper body thorax
-and tilt/rotation of head
-Accessory muscle of the neck for forced inspiration
-origin from two places- manubrium of sternum and clavicle
-innervated by accessory nerve

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

Scalenus

A

-elevate ribs, sternum
-Accessory muscle of the neck inspiration;
-Primary function is to balance the head
(medius,anterior, posterior)

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

Serratus Anterior

A

-elevates ribs;
-originates from ribs (#1-9),
-inserts at inner vertebral border of scapula

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

Levator Scapula

A

-Stabilize shoulder girdle, head
-Muscle of inspiration;
-origin from transverse process C1-C4
-insertion: scapula along midline
-Function; Stabilizes the scapula (lifts it) relative to the vertebral column

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

Rhomboidus Major/Minor

A

-Stabilize shoulder girdle, head
-function: anchors the scapula
-Accessory muscle for inspiration;
-originated from C7-T5
-insertion: Scapula at the midline

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

Trapezius (innervated, function)

A

-Stabilize shoulder girdle, head
-accessory muscle for inspiration;
-function: brace claivicle and scapula against action of other muscles;
-innervated by Accessory nerve
-origin: Spinous processes of C2 to T12
-insertion: Upper surface of the clavicle and scapula

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

Diaphragm* (origin and innervated)

A

-originates along vertebral column, lower rib cage (T7-T12) down to xiphoid process
-inserts at central tendon
-innervated by phrenic nerve (spinal nerve C3-C5)

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

Diaphragm* (description and function related to quiet respiration)

A

-inverted dome/sheet shaped muscle
-assists with respiration cycle by expanding the thoracic cavity inferiorly
(down)=inspiration
-this helps the thorax to expand vertically
-during quiet breathing, disphragmatic movement is enough to supply blood with oxygen, accessory muscles needed for speech and exercise for forced inspiration

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

When Diaphragm contracts

A

-The central tendon is pulled downward
-expands the thoracic cavity inferiorly (inspiration) (increases vertical dimension of thorax)
-compresses abdominal viscera

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

External intercostal muscle* (origin and innervated by)

A

accessory thoracic muscle for inspiration
-innervated by intercostal nerves
-originate from LOWER margin of each
rib, insert at upper margin of the rib below

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

Internal Intersoctal muscle* (description and function)

A

-Assists in expiration by pulling the ribs down
-can compress rib cage if lower ribs are stabilized
-originate from superior margin
of ribs 2-11, insert at inferior border of ribs above; innervated by intercostal nerves

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

External intercostal muscle*(description and function)

A

-elevate ribs, sternum
-Accessory muscle for inspiration
-fill 11 spaces between the ribs but end short of the sternum
-act as a single sheet of muscle pulling all the lower ribs toward the first rib (has the GREATEST) direct effect on ribs)
-runs between the ribs along the outside surface of the bones

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

pectoralis major

A

Accessory muscle for inspiration that is large and part of the upper chest
-Originates in two heads from sternum and clavicle, inserts into upper arm /humerus
-functions to assist drawing the sternum upward

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

Levatores Costarum Brevis

A

-elevate ribs, sternum
-Accessory muscle for inspiration
-pulls up on the rib to expand the rib cage
-runs from vertebrae (C7-T11
-insert near the head of the rib just below the vertebrae from which it originates

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

Internal intercostals (origin, insertion and innervated by)

A

Origin: originate from superior margin
of ribs 2-11 insert at inferior border of ribs above; innervated by intercostal nerve

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

Levatores Costarum Longis

A

-accessory muscle of inspiration
-Pulls upward on the rib, just like the levatores costarum brevis
-Run from middle vertebrae (T7-T10)
-Insert near the head of the rib that is two below the vertebrae from which it originate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Serratus Posterior Superior

A

-elevate ribs, sternum
-Accessory muscle of inspiration
-stabilize the upper ribs so the external intercostals can create maximal expansion of the rib cage
-Spinous processes of C7 through T3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Pectoralis minor

A

Accessory muscle in inspiration
-origin: Second through fifth ribs
-insertion: scapula
-function: If scapula is stabilized, these muscles too can aid in stabilizing and raising the upper ribs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Rectus Abdominis*

A

-accessory abdominal muscle for expiration to compress abdomens
-originates at xiphoid process, inserts at pubic symphysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Transversus Abdominis

A

-Compress abdomen for expiration
-function: It compresses the viscera with more power than any other muscle
-origin: Lower vertebral column
-Central into the abdominal aponeurosis, Superior into cartilages of lower 6 ribs (7-12), Inferior to ilium and pubic bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

External Obliques

A

-Compress abdomen for expiration
-function: Can pull on lower ribs to compress rib cage and oppose diaphragm
-origin: lower seven ribs (6-12)
-insertion: iliac crest and abdominal aponeurosis

23
Q

Internal Obliques

A

-Compress abdomen for expiration
-function: pull down on lower ribs and oppose diaphragm
-origin: iliac crest
-insertion: Insert at midline at the abdominal aponeurosis and cartilages of lower ribs

24
Q

Quadratus Lumborum

A

accessory abdominal muscle for expiration
-function: Contraction stabilizes the posterior abdominal wall, supporting the compression created by the anterior abdominals
-origin: iliac crest
-insertion: lumbar vertebrae, and also into rib 12

25
Q

Transverse thoracis*

A

accessory thoracic muscle for expiration
- pulls ribs down w costal cartilages; originates at sternum, inserts into
lower ribs (#2-6)
-innervated: intercostal nerve

26
Q

Serratus Posterior Inferior

A

accessory thoracic muscle for expiration
-function: Stabilizes and depresses the lower ribs
-origin: T11-L3
-insertion: lowest five ribs

27
Q

Latissimus Dorsi
s

A

stabilixe abdominal wall for expiration
-origin: sacrum, lumbar vertebrae, and lower thoracic vertebrae
-insertion: humerus, just below the armpit

28
Q

-Accessory muscle of the neck for forced inspiration
-stabilizes upper body thorax
-and tilt/rotation of head
-origin from two places- manubrium of sternum and clavicle
-innervated by accessory nerve

A

‘Sternocleidomastoid (function and description)

29
Q

-Elevate ribs, sternum
-originate from C2 through C7 to insert into first second ribs
-Primary function is to balance the head
-anchor the upper ribs for rib cage expansion

A

Scalenus

30
Q

Large accessory muscle for inspiration
-originates from ribs (#1-9), inserts at
inner vertebral border of scapula (fans down and around chest)

A

Serratus Anterior

31
Q

-elevates rib #1;
-originates from inferior surface of clavicle,
-inserts superior surface of rib 1

A

Subclavius* (function)

32
Q

Muscle of inspiration;
-origin from transverse process C1-C4
-insertion: scapula along midline
-Function; Stabilizes the scapula (lifts it) relative to the vertebral column, providing anchoring for the action of the serratus anterior and the pectoralis minor

A

Levator Scapula

33
Q

Accessory muscle for inspiration;
-function: anchors the scapula
-originated from C7-T5
-insertion: Scapula at the midline

A

Rhomboidus Major/Minor

34
Q

accessory muscle for inspiration;
-function: brace claivicle and scapula against action of other muscles;
-innervated by Accessory nerve
-origin: Spinous processes of C2 to T12
-insertion: Upper surface of the clavicle and scapula

A

Trapezius (innervated, function)

35
Q

-originates along vertebral column, lower rib cage (T7-T12) down to xiphoid process
-innervated by phrenic nerve (spinal nerve C3-C5)

A

Diaphragm* (origin and innervated)

36
Q

-inverted dome/sheet shaped muscle
-assists with respiration cycle by expanding the thoracic cavity inferiorly
(down)=inspiration
-this helps the thorax to expand vertically
-during quiet breathing, disphragmatic movement is enough to supply blood with oxygen, accessory muscles needed for speech and exercise for forced inspiration

A

Diaphragm* (description and function related to quiet respiration)

37
Q

accessory thoracic muscle for inspiration
-innervated by intercostal nerves, spinal nerves emerging from between the thoracic vertebrae
-runs between the ribs along the outside surface of the bones

A

External intercostal muscle* (origin and innervated by)

38
Q

-Assists in expiration by pulling the ribs down
-can compress rib cage if lower ribs are stabilized

A

Internal Intersoctal muscle* (description and function)

39
Q

-Accessory muscle for inspiration
-fill 11 spaces between the ribs but end short of the sternum
-act as a single sheet of muscle pulling all the lower ribs toward the first rib (has the GREATEST) direct effect on ribs)
-runs between the ribs along the outside surface of the bones

A

External intercostal muscle*(description and function)

40
Q

-Increase vertical dimension of thorax
-Accessory muscle for inspiration that is large and part of the upper chest
-Originates in two heads from sternum and clavicle, inserts into upper arm /humerus

A

pectoralis major

41
Q

Accessory muscle for inspiration
-pulls up on the rib to expand the rib cage
-runs from vertebrae (C7-T11
-insert near the head of the rib just below the vertebrae from which it originates

A

Levatores Costarum Brevis

42
Q

Origin: upper surface of each rib except rib 1
Insertion: lower surface of the lower riv
-innervated by intercostal nerves

A

Internal intercostals (origin, insertion and innervated by)

43
Q

-accessory muscle of inspiration
-Pulls upward on the rib, just like the levatores costarum brevis
-Run from middle vertebrae (T7-T10)
-Insert near the head of the rib that is two below the vertebrae from which it originate

A

Levatores Costarum Longis

44
Q

Accessory muscle of inspiration
-similar to the levatores Costarum
-stabilize the upper ribs so the external intercostals can create maximal expansion of the rib cage
-Spinous processes of C7 through T3
-Insert into the next lower rib just laterally of the angle of the rib

A

Serratus Posterior Superior

45
Q

Accessory muscle in inspiration
-origin: Second through fifth ribs
-insertion: scapula
-function: If scapula is stabilized, these muscles too can aid in stabilizing and raising the upper ribs

A

Pectoralis minor

46
Q

compresses abdomen; originates at xiphoid process,
inserts at pubic symphysis

A

Rectus Abdominis*

47
Q

accessory abdominal muscle for expiration
-function: It compresses the viscera with more power than any other muscle
-origin: Lower vertebral column
-Central into the abdominal aponeurosis, Superior into cartilages of lower 6 ribs (7-12), Inferior to ilium and pubic bones

A

Transversus Abdominis

48
Q

Muscle for expiration
-function: Can pull on lower ribs to compress rib cage and oppose diaphragm
-origin: lower seven ribs (6-12)
-insertion: iliac crest and abdominal aponeurosis

A

External Obliques

49
Q

-Compress abdomen for expiration
-function: pull down on lower ribs and oppose diaphragm
-origin: iliac crest
-insertion: Insert at midline at the abdominal aponeurosis and cartilages of lower ribs

A

Internal Obliques

50
Q

-Compress abdomen for expiration
-function: Contraction stabilizes the posterior abdominal wall, supporting the compression created by the anterior abdominals
-origin: iliac crest
-insertion: lumbar vertebrae, and also into rib 12

A

Quadratus Lumborum

51
Q

pulls ribs down; originates at sternum, inserts into
lower ribs (#2-6)

A

Transverse thoracis*

52
Q

accessory thoracic muscle for expiration
-function: Stabilizes and depresses the lower ribs
-origin: T11-L3
-insertion: lowest five ribs

A

Serratus Posterior Inferior

53
Q

accessory thoracic muscle for expiration
-function: If contracted, would stabilize the lower abdominal wall along with the quadratus lumborum (and so aid abdominal muscles in indirectly opposing diaphragm)

A

Latissimus Dorsi
s

A&P (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions