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CHA 101 > Labs V and VI > Flashcards

Labs V and VI Flashcards

1
Q

flexor digiti minimi (OIA)

A

O: hamate bone and flexor retinaculum
I: medial side of proximal phalanx of digit 5
A: flex proximal phalanx of digit 5

hypothenar eminence

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2
Q

flexor digiti minimi (NB)

A

N: ulnar nerve
B: Deep palmar branch of ulnar artery

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3
Q

abductor digiti minimi (OIA)

A

O: pisiform bone
I: medial side of proximal phalanx of digit 5
A: AB digit 5

hypothenar eminence, most medial

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4
Q

abductor digiti minimi (NB)

A

N: ulnar nerve
B: palmar branch of ulnar artery

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5
Q

opponens digiti minimi (OIA)

A

O: hamate bone and flexor retinaculum
I: medial bordeer of 5th metacarpal
A: opposes 5th digit to thumb

hypothenar eminence; more medial

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6
Q

opponens digiti minimi (NB)

A

N: Ular nerve
B: Deep palmar branch of ulnar artery, deep palmar arch

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7
Q

lumbricals (4) (OIA)

A

O: tendons of flexor digitorum profundus
I: lateral side of extensor expansion of digits 2-5
A: flex MCP, extend IP

central compartment, deep, “worms” “bye bye muscles”

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8
Q

lumbricals (NB)

A

N: ulnar- medial 2 lumbricals (Lum 3-4-> digits 4-5); median-lateral 2 lumbricals (Lum 1-2-> digits 2-3)
B: superficial and deep palmar branch

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9
Q

palmar aponerosis (OIA)

A

O: palmaris longus tendon
I: digits 2-5
A: protect deeper structures

thickening of fascia; deep

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10
Q

dorsal interossei (4) (OIA)

A

O: adjacent sides of 2 metacarpal bones
I: extensor expansions and base of digits 2-4
A: flex MCP joints, extend IP joints, AB 2-4

central compartment; deep; DAB; posterior view best; bye bye muscles

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11
Q

dorsal interossei (4) (NB)

A

N: ulnar nerve
B: radial artery and dorsal carpal anastomosis

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12
Q

palmar interossei (OIA)

A

O: palmar surface of 2, 4, 5 metacarpals
I: base of proximal phalanx & extensor expansion of 2,4, 5 digits
A: flex MCP, extend IP, AD 2,4,5

central compartment; deep; PAD; palmar view best; bye bye muscles

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13
Q

abductor pollicis brevis (OIA)

A

O: flexor retinaculum, scaphoid, trapezium
I: proximal phalanx of digit 1
A: AB of thumb, assist w opposition

thenar eminence, most lateral

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14
Q

abductor pollicis brevis (NB)

A

N: recurrent branch of median nerve
B: Superficial palmar branch of radial artery

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15
Q

opponens pollicis (OIA)

A

O: flexor retinaculum & trapezium
I: lateral side of 1st metacarpal
A: opposition

thenar eminence; deep to AB pollicis brevis; if damage- majority of hand use lost

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16
Q

opponens pollicis (NB)

A

N: recurrent branch of median nerve
B: Superficial palmar branch of radial artery

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17
Q

adductor pollicis (OIA)

A

O: 2nd & 3rd metacarpal bones
I: medial side of proximal phalanx of thumb
A: AD of thumb, assist w opposition

palmar view; not in thenar eminence

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18
Q

adductor pollicis (NB)

A

N: ulnar nerve
B: deep palmar arch

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19
Q

flexor pollicis brevis (OIA)

A

O: flexor retinaculum & trapezium
I: proximal phalanx of thumb
A: flex thumb, assist in opposition

thenar muscle, next to AB pollicis brevis but more medial

20
Q

flexor pollicis brevis (NB)

A

N: recurrent branch of median nerve
B: anterior interosseous of ulnar artery

21
Q

extensor expansion (OIA)

A
  • attached to the dorsum of proximal phalanges 2-5
  • has extensor digitorum distal ends
  • receives insertions from lumbricals and interossei
  • helps with flexion of MCP and extension of IPs
22
Q

true ribs

A

-1-7ish, articulate with sternum via costal cartilage

23
Q

false ribs

A

-8-10, articulate with costal margin formed by joining costal cartilage

24
Q

floating ribs

A
  • 11-12, no articulation

- dangers/damages to liver (R), spleen(L), kidneys (blow to back)

25
accessory muscles of expiration
- rectum abdominis - internal obliques - external obliques - quadratus lumborum
26
accessory muscles of inspiration
- pectoralis major - pectoralis minor - serratus anterior - sternocleidomastoid - scalene muscle
27
superficial palmar arterial arch
- deep palmar aponeurosis - branches from ulnar artery - runs w ulnar nerve - gives rise to palmar digital arteries -> fingers - collateral circulation w deep palmar arch (test w allen test)
28
deep palmar arterial arch
- branch from radial artery - travels posteriorly thru anatomical snuffbox - travels in same plane as motor branches of ulnar nerve - anastomoses w superficial palmar arch (test w allen test)
29
median nerve in palm
- deep to flexor retinaculum (thru carpal tunnel) - motor-> thenar muscles and 2 radial lumbricals (recurrent branch of median n) - sensory-> palmar surface of digits 1-3 and lateral 1/2 of 4, dorsal - damage proximal to forearm -> sign of benediction-> loss of flexion of digits 1-3
30
ulnar nerve in palm
-enter palm superficial to flexor retinaculum -runs with ulnar nerve -motor -> all intrinsic hand muscles (except ones innervated by median) -sensory-> palmar and dorsal of digit 5 and 1/2 of 4 damage-> loss of 4-5 digit DIP flexion, loss of AB?AD of digits 2-5, loss of opposition digit 5
31
radial nerve in palm
- becomes superficial radial nerve - goes to dorsum of hand - sensory-> dorsal 1-3 digits
32
primary curvatures of the spine
- thoracic and sacral regions - original fetus curvature concaves anteriorly - "hunched over"
33
secondary curvature of the spine
-cervical and lumbar regions -develop after birth -concave posteriorly -> S "arched back"
34
kyphosis
-excessive posterior convex curvature (hunchback)
35
lordosis
- excessive lumbar curvature | - pregnancy and obesity
36
scoliosis
- excessive lateral curvature of spine - sacral region - esp in girls w asymetrical back
37
spina bifida (reg)
-defect in vertebral arch-> lamina not fused to arch; lumbosacral genital deficit
38
spina bifida (occulta)
no external signs of fxal deficits, small opening can leak csf
39
spina bifida (cystica)
-cyst (fluid filled sack) -> herniation-> strain on spinal cord lumbar region -> paralysis of lower lumbar infection
40
anterior vs posterior longitudinal ligaments of intervertebral joint
A: covers anterior of vertebrae body and intervertebral discs; prevents hypertension; supports body P: covers posterior of vertebrae body; limits hyperflexion; prevents posterior disc protrusion; supports body
41
ligamentum flavum
- btwn lamina (inferior and superior) - strongest ligament - limits separation of lamina during flexion - assist w extension of back - found posterior on arches/laminas
42
erector spinae muscles (OIANB)
-intrinsic back muscles that extends spine and supports weight of body O: posterior iliac crest, sacrum, sacroiliac ligament; lumbrosacral spine I: spines and transverse process of vertebrae, ribs, base of skull A: laterally bend and extend back N: dorsal primary remi B: vertebral, deep cervical, occipital, transverse cervical, intercostal and sacral arteries
43
importance of sternal angle (manubriosternal joint)
- articulation of rib 2 - trachea bifurcates into L&R - superior border of heart - separates L4 and L5 (inferior and superior mediastinum) - place to listen to pulmonary valve (L of sternal angle) - place to listen to aortic valve (R of sternal angle)
44
superior thoracic aperture (thoracic inlet)
borders: rib 1 (medial), manubrium (anterior), 1st thoracic vertebrae (posterior) - communication btwn thorax, neck, upper limb - where esophagus, trachea, nerve vessels to head and upper limbs travel thru
45
inferior thoracic aperture (thoracic outlet)
borders: xiphoid process (ant), common costal cartilage (med), 12th thoracic vertebrae (post) - separates thorax from abdomen - closed off by diaphragm (assists with breathing)

CHA 101 (14 decks)

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