Brainscape's Knowledge GenomeTM

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


See full index

A&P of the Speech and Hearing Mechanism > Muscles of respiratory system exam 1 > Flashcards

Muscles of respiratory system exam 1 Flashcards

1
Q

primary inspiratory muscle

A

diaphragm

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

diaphragm

A

Origin: sternal head. Xiphoid process of the sternum; costal head. the inferior margin of the rib cage (7 through 12); vertebral head. the corpus of L1 and the transverse processes of L1 and L5
Insertion: central tendon and diaphragm
Innervation: phrenic nerve arising from cervical plexus of spinal nerves C1-C4
Function: depresses central tendon of diaphragm, enlarges vertical dimension of thorax, distends abdomen

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

accessory thoracic muscles of inspiration

A

external intercostal, internal intercostal, elevator costarum brevis, levator costarum longis, serratus posterior superior,

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

external intercostal

A

Origin: interior surface of ribs 1 - 11
Insertion: upper surface of rib immediately below
Innervation: intercostal nerves - thoracic intercostal nerves arising from T1 - T6 and thoracoabdominal intercostal nerves from T7 - T11
Function: elevates ribs

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

internal intercostal

A

Origin: superior margin of ribs 1 - 11
Insertion: inferior surface of the rib below
Innervation: thoracic intercostal nerves arising from T1-T6 and thoracoabdominal intercostal nerves from T7-T11
Function: elevate ribs 1 - 11

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

levator costarum brevis

A

Origin: transverse processes of vertebrae C7-T11
Insertion: tubercle of the rib below
Innervation: dorsal rami (branches) of the intercostal nerves arising from spinal nerves C7-T11
Function: elevates rib cage

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

levator costarum longis

A

Origin: transverse processes of C7-T11
Insertion: bypasses and rib below the point of origin, inserting instead into the next rib
Innervation: dorsal rami (branches) of the intercostal nerves arising from spinal nerves C7-T11
Function: elevates rib cage

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

serrates posterior superior

A

Origin: spinous processes of C7 and T1-T3
Insertion: just beyond the angles of ribs 2-5
Innervation: ventral intercostal portion of spinal nerves T1-T4 or T5
Function: elevates ribs 2-5

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

accessory muscles of neck

A

sternocleidomastoid, scalenus anterior, scalenus medius, scalenus posterior

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

sternocleidomastoid

A

Origin: mastoid process of the temporal bone
Insertion: sternal head: superior manubrium sterni; clavicular head: clavicle
Innervation: XI accessory, spinal branch arising from the spinal cord in the regions of C2 through C4 and C5
Function: elevates sternum and rib cage

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

scalenus anterior

A

Origin: transverse processes of vertebrae C3-C6
Insertion: superior surface of rib 1
Innervation: C4-C6
Function: elevates rib 1

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

scalenus medius

A

Origin: transverse processes of vertebrae C2-C7
Insertion: superior surface of rib 1
Innervation: cervical plexus derived from C3and C4 and spinal nerves C5-C8
Function: elevates rib 1

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

scalenus posterior

A

Origin: transverse processes of C5-C7
Insertion: second rib
Innervation: spinal nerves C5-C8
Function: elevates rib 2

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

muscles of upper arm and shoulder

A

pectoralis major, pectoralis minor, serrates anterior, subclavius, levator scapulae, rhomboideus major, rhomboideus minor, trapezius

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

pectoralis major

A

Origin: sternal head: length of the sternum at costal cartilages; clavicular head: anterior clavicle
Insertion: greater tubercle of humerus
Innervation: superior branch brachial plexus (spinal nerves C5-C8 and T1)
Function: elevates sternum, and subsequently increases transverse dimension of rib cage

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

pectoralis minor

A

Origin: anterior surface of ribs 2-5 near the chondral margin
Insertion: coracoid process of scapula
Innervation: superior branch of the brachial plexus (spinal nerves C5-C7 and T1)
Function: increases the transverse dimension of the rib cage

17
Q

serratus anterior

A

Origin: ribs 1-9, lateral surface of the thorax
Insertion: inner vertebral border of scapula
Innervation: brachial plexus, long thoracic nerve from C5-C7
Function: elevates ribs 1-9

18
Q

subclavius

A

Origin: inferior surface of the clavicle
Insertion: superior surface of rib 1 at chondral margin
Innervation: brachial plexus, lateral branch, from 5th and 6th spinal nerves
Function: elevates rib 1

19
Q

levator scapulae

A

Origin: transverse processes of C1-C4
Insertion: medial border of scapula
Innervation: C3-C5
Function: neck support, elevates scapula

20
Q

rhomboideus major

A

Origin: spinous processes of T2-T5
Insertion: scapula
Innervation: spinal C5 from the dorsal scapular nerve of upper root of brachial plexus
Function: spinal C5 from the dorsal scapular nerve of upper root of brachial plexus. Stabilizes shoulder girdle.

21
Q

rhomboideus minor

A

Origin: spinous processes of C7-T1
Insertion: medial border of scapula
Innervation: spinal C5 from the dorsal scapular nerve of upper root of brachial plexus
Function: stabilizes shoulder girdle

22
Q

trapezius

A

Origin: spinous processes of C2-T12
Insertion: acromion of scapula and superior surface of clavicle
Innervation: XI accessory, spinal branch arising from spinal cord in the regions of C2 through C4 and C5
Function: elongates neck, controls head

23
Q

thoracic muscles of expiration

A

internal intercostal, innermost intercostal, transversus thoracis

24
Q

internal intercostal

A

Origin: superior margin of ribs 1-11
Insertion: inferior surface of rib above
Innervation: intercostal nerves
Function: depresses ribs 1-11

25
Q

innermost intercostal

A

Origin: superior margin of ribs 1-11, sparse or absent in superior thorax
Insertion: inferior surface of rib above
Innervation: intercostal nerves
Function: depresses ribs 1-11

26
Q

transversus thoracis

A

Origin: inner thoracic lateral margin of the sternum
Insertion: inner chondral surface of ribs 2-6
Innervation: thoracic intercostal nerves and thoacoabdominal intercostal nerves and subcostal nerves derived from T2-T6 spinal nerves
Function: depresses rib cage

27
Q

posterior thoracic muscles

A

subcostal, serratus posterior inferior

28
Q

subcostal

A

Origin: inner posterior thorax; sparse in the upper thorax; from inner surface of rib near angle
Insertion: inner surface of second or third rib below
Innervation: intercostal nerves of thorax
Function: depresses thorax

29
Q

serratus posterior inferior

A

Origin: spinous processes of T11, T12, L1-L3
Insertion: lower margin of ribs 7-12
Innervation: intercostal nerves
Function: contraction tends to pull rib cage down. supporting expiratory effort

30
Q

abdominal muscles of expiration

A

transversus abdominis, internal oblique abdominis, external oblique abdominis, rectus abdominis, quadratus lumborum

31
Q

transversus abdominis

A

Origin: posterior abd. wall at the vertebral column via the thoracolumbar fascia of the abd. aponeurosis
Insertion: transverses abdominis aponeurosis and inner surface of ribs 6-12, inferior most attachment at pubis
Innervation: thoracic and lumbar nerves from the lower spinal intercostal nerves
Function: compresses abdomen

32
Q

internal oblique abdominis

A

Origin: inguinal ligament and iliac crest
Insertion: cartilaginous portion of lower ribs and the portion of the abd. aponeurosis lateral to the rectus abdominis
Innervation: thoracic and lumbar nerves from the lower spinal intercostal nerves
Function: rotates trunk, flexes trunk, compresses abdomen

33
Q

external oblique abdominis

A

Origin: osseous portion of the lower 7 ribs
Insertion: iliac crest, inguinal ligament, and abdominal aponeurosis lateral to the rectus abdominis
Innervation: thoracoabdominal nerve arising from T7-T11 and subcostal nerve
Function: bilateral contraction flexes vertebral column and compresses abdomen; unilateral contraction results in trunk rotation

34
Q

rectus abdominis

A

Origin: originates as 4 or 5 segments at pubis inferiorly
Insertion: Xiphoid process of sternum
Innervation: intercostal and subcostal nerves
Function: flexion of vertebral column

35
Q

quadrates lumborum

A

Origin: iliac crest
Insertion: transverse processes of the lumbar vertebrae and inferior border of rib 12
Innervation: thoracic nerve and lumbar nerve
Function: bilateral contraction fixes the abdominal wall in support of abdominal compression

36
Q

latissimus dorsi

A

Origin: lumbar, sacral and lower thoracic vertebrae
Insertion: humerus
Innervation: brachial plexus, posterior branch
Function: for respiration, stabilizes posterior abdominal wall for expiration

A&P of the Speech and Hearing Mechanism (4 decks)

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