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CHA 101 > Labs V and VI > Flashcards

Labs V and VI Flashcards

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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
Q

accessory muscles of expiration

A
  • rectum abdominis
  • internal obliques
  • external obliques
  • quadratus lumborum
26
Q

accessory muscles of inspiration

A
  • pectoralis major
  • pectoralis minor
  • serratus anterior
  • sternocleidomastoid
  • scalene muscle
27
Q

superficial palmar arterial arch

A
  • 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
Q

deep palmar arterial arch

A
  • 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
Q

median nerve in palm

A
  • 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
Q

ulnar nerve in palm

A

-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
Q

radial nerve in palm

A
  • becomes superficial radial nerve
  • goes to dorsum of hand
  • sensory-> dorsal 1-3 digits
32
Q

primary curvatures of the spine

A
  • thoracic and sacral regions
  • original fetus curvature concaves anteriorly
  • “hunched over”
33
Q

secondary curvature of the spine

A

-cervical and lumbar regions
-develop after birth
-concave posteriorly -> S
“arched back”

34
Q

kyphosis

A

-excessive posterior convex curvature (hunchback)

35
Q

lordosis

A
  • excessive lumbar curvature

- pregnancy and obesity

36
Q

scoliosis

A
  • excessive lateral curvature of spine
  • sacral region
  • esp in girls w asymetrical back
37
Q

spina bifida (reg)

A

-defect in vertebral arch-> lamina not fused to arch; lumbosacral genital deficit

38
Q

spina bifida (occulta)

A

no external signs of fxal deficits, small opening can leak csf

39
Q

spina bifida (cystica)

A

-cyst (fluid filled sack) -> herniation-> strain on spinal cord lumbar region -> paralysis of lower lumbar infection

40
Q

anterior vs posterior longitudinal ligaments of intervertebral joint

A

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
Q

ligamentum flavum

A
  • btwn lamina (inferior and superior)
  • strongest ligament
  • limits separation of lamina during flexion
  • assist w extension of back
  • found posterior on arches/laminas
42
Q

erector spinae muscles (OIANB)

A

-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
Q

importance of sternal angle (manubriosternal joint)

A
  • 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
Q

superior thoracic aperture (thoracic inlet)

A

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
Q

inferior thoracic aperture (thoracic outlet)

A

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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