Brainscape's Knowledge GenomeTM

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


See full index

MSK-1 > Test 2 Stuff I don't Remember > Flashcards

Test 2 Stuff I don't Remember Flashcards

1
Q

What is meralgia paresthetica?

A

compression of lateral femoral cutaneous n –> causes numbness and tingling on anterolateral thigh
L2-L3

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

What muscles are activated in terminal swing?

A

Hamstrings (fire to keep your leg from kicking out too far)

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

What are type I synovial cells?

A

type a/macrophage-like

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

How will decreasing extracellular sodium levels affect the action potential graph?

A

decreasing extracellular Na reduces the driving force to pull Na into the cell –> peak is wider bc it takes more time to reach threshold

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

What percentage of the gate cycle is stance phase?

what is the sequence of movements?

A 
60%
heel strike (i contact) 
load response
midstance
terminal stance (heel off)
preswing (toe off)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the entire gate cycle?

A 
heel strike (initial contact)
load response
midstance
terminal stance (heel off)
preswing (toe off)
terminal swing
next heel strike
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Where are the anterior and posterior divisions of the obturator n in the body?

A

Brevis sandwich!
anterior div goes on top of adductor brevis
posterior div goes under adductor brevis

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

Where is reticular CT found?

A

bone marrow
lymph nodes
spleen

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

Where are meissner’s corpuscles

A

dermal papillae just below the epidermis

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

Where are pacinian corpuscles?

A

in deeper dermis and hypodermis

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

What muscles and skin does the anterior obturator n innervate?

A

skin medial thigh
gracilis
adductor longus m
adductor brevis m

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

What direction do the proximal superficial inguinal LNs run?

What direction do the distal superficial inguinal LNs run?

A

horizontal inferior to inguinal L.

vertical on either side of great saphenous vein

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

Increase in what intracellular molecule in a muscle fiber causes tetany?

A

calcium

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

What is the resting membrane potential of smooth muscle?

A

-60 mv

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

What is the equilibrium potential of sodium?

A

+66 mv

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

How do you tell eccrine and apocrine sweat glands apart?

A

apocrine have much bigger lumen

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

What is the mortise perspective?

A

image of front of ankle w/ pt internally rotating ankle so you can see the tarsal bones better

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

What are the causes of carpal tunnel syndrome?

A 
rheumatoid arthritis
pregnancy
lunate dislocation
dialysis
repetitive use
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the most hydrated type of cell in ground substance?

A

glycosaminoglycans (GAGs)

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

if ion in > ion out, what is the log?

A

negative

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

What are the layers of the hair shaft from superficial to deep?

A

cuticle –> cortex –> medulla

medulla = middle

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

Where are the deep inguinal LNs?

A

on medial side of femoral vein (in empty space)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the equilibrium potential of potassium?

A

-91 mv

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Where are langerhans cells found?

A

stratum spinosum of epidermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is the equation for driving force?

A

resting membrane potential - equilibrium potential of an ion = driving force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

i ion in < ion out, what is the log?

A

positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What type of collagen is in reticular fibers?

A

type 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Using what type of stain can you not see osteons?

A

H&E stain

can see medullary cavity and cancellous bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What muscles are activated in preswing (toe off)

A

iliopsoas

rectus femoris

30
Q

What is the nernst equation?

A

equilibrium potential of an ion = 61.5/charge * log[out]/[in]

31
Q

What are the long spiney parts of spongy bone that form the honey-comb shape?

A

trabeculae

32
Q

What does the obturator n innervate before it divides into anterior and posterior divisions?

A

hip joint

obturator externus m

33
Q

When ACh binds to a receptor on a muscle, what happens in regard to Na and K and their equilibrium potentials?

A

Na goes in cell
K goes out cell
cell depolarizes toward a point halfway between their respective equilibrium potentials

34
Q

How do you tell mesenchyme apart from loose areolar CT?

A

mesenchyme stains lighter, won’t see collagen as much

35
Q

what is a bone collar?

A

Cuff of periosteal bone that forms around the
diaphysis of the hyaline cartilage model in
developing long bones

36
Q

What are the 3 main groups of lymph nodes in the lower extremity?

A

popliteal LNs
superficial inguinal LNs = proximal and distal
Deep inguinal LNs

37
Q

What is the resting membrane potential of neurons?

A

-60 to -70 mv

38
Q

Where are merkel cells?

A

stratum basale of epidermis

39
Q

What does the saphenous n run with when it enters and exits the adductor canal?

A

saphenous branch of descending genicular A

40
Q

What intensity does the ACL look like on T2?

A

intermediate intensity

41
Q

what does a positive driving force mean?

A

net efflux of ion (wants to go out of cell)

42
Q

What muscles are activated during load response

A

triceps surae
quadriceps femoris
gluteus medius and minimus

43
Q

What is the resting membrane potential of cardiac and skeletal muscle?

A

-80 to -90 mv

44
Q

What is a jones fracture?

A

break btw base and middle part of 5th metatarsal

occurs when toes are pointed and foot bends inwards

45
Q

how do you fall if you get a colles fracture?

A

FOOSH

wrist extended

46
Q

Where would lymph from the foot drain?

A

popliteal nodes –> deep inguinal nodes –> external iliac nodes

47
Q

How do you tell sebaceous glands apart from sweat glands?

A

sebaceous are near hair follicles, stain lightly, and you can’t see the lumen as much

48
Q

What percentage of the gate cycle is the swing phase? What are the events in it?

A

40%
terminal swing
next heel strike

49
Q

What is the equilibrium potential of Cl-?

A

-66.4

50
Q

How do you fall if you get a smith’s fracture?

A

FOOSH

wrist flexed

51
Q

What muscles are activated during heel strike/ initial contact?

A

glutes

tibialis anterior

52
Q

What is the equilibrium potential of ca2+?

A

+123

53
Q

What type of fibers surround adipocytes and hold them in place?

A

reticular fibers

54
Q

What muscle does the posterior obturator n innervate?

A

adductor magnus adductor portion

55
Q

what does a negative driving force mean?

A

net influx of ion (wants to go in cell)

56
Q

What muscles are activated in next heel strike?

A

gluteus medius and minimus

triceps surae

57
Q

What does the descending genicular a arise from?

A

femoral a

58
Q

What cellular organelle is predominant in type A macrophage-like synovial cells?
What is the function of these cells?

A

lysosomes to clear articular cavity of debris

phagocytic cells that regulate inflammatory events

59
Q

Where do free nerve endings in the skin terminate?

A

stratum granulosum

60
Q

What are type II synovial cells?

A

type B/ fibroblast-like

61
Q

What is the main storage form of energy in adipocytes?

A

triglycerides

62
Q

Where do the inguinal (deep and superficial) LNs drain to?

A

external iliac LNs

63
Q

What muscles are activated in terminal stance (heel off)

A

triceps surae

gluteus medius and minimus

64
Q

What do you always check for if a child has a limp as a differential diagnosis?

A

avascular necrosis of the femur

65
Q

What type of immune cell is housed in the sinuses of reticular fibers in lymph nodes?

A

macrophages

66
Q

When someone has increased extracellular K+ levels, what happens to their Na+ voltage-gated channels to cause muscle weakness?

A

Na+ channels become closed due to depolarization

67
Q

What are the zones of the epiphyseal plate?

A 
(from superficial to deep)
zone of reserve cartilage
zone of proliferation
zone of hypertrophy
zone of calcification
zone of resorption
68
Q

What muscles are activated in midstance?

A

triceps surae

gluteus medius and minimus

69
Q

What is the part of cartilage that allows it to bear weight/resist pressure?
What molecule helps do that?

A

extracellular water

glycosaminoglycans help bind that water

70
Q

What muscle on the lateral side of the big toe inserts onto a sesamoid bone?

A

adductor hallucis

MSK-1 (28 decks)

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