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final exam (Britt) Flashcards

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1
Q

brachial plexus innervation is:

A

C5-C8 & T1

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2
Q

axillary nn

A

C5-C6
innervation: deltoid and teres minor mm, skin of suerolateral arm

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3
Q

musculocutaneous nn

A

C5-C7
anterior arm- coracobrachialis, biceps brachia & brachialis. skin of lateral aspect of arm

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4
Q

radial nn

A

C5-T1
all mm of posterior compartments of arm & forearm
skin of posterior and inferolateral arm, posterior forearm, and dorm of hand of proximal lateral 31/2 digits

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5
Q

medial n

A

lateral: C6-C7/ medial: C8-T1
- mm of anterior forearm (except flexor carpi ulnas and the ulnar half of flexor digitorum profundus) & intrinsic mm in the thenar eminence
- skin of palm and palmar & distal dorsal aspects of lateral 3 1/2 digits

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6
Q

ulnar nn

A

C8-T1
- flexor digitorum lunaris nd ulnar half of flexor digitorum profundus. also, most intrinsic mm of the hand
- skin of hand medial and medial 1 1/2 digits of hand

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7
Q

lateral pectoral innervation

A

primarily pec major

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8
Q

medial pectoral innervation

A

pec minor and sternocostal part of pec major

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9
Q

upper subscap

A

superior portion of subscap

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10
Q

lower subs cap

A

inferior portion of subscapularis

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11
Q

thoracodorsal

A

lats

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12
Q

dorsal scapular

A

supraspinatus, infraspinatus and GH joint

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13
Q

subclavian

A

subclavius and SC joint

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14
Q

femoral nn

A

L2-L4
iliac, flexors of the hip and extensors of the knee

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15
Q

obturator nn

A

L2-L4
adductor mm’s

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16
Q

lumbosacral trunk

A

L4-L5
passes over the ala of the sacrum and descends into the pelvis to participate in the formation of the sacral plexus with the anterior rami of S1-S4 nerves

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17
Q

ilioinguinal & iliohypogastric

A

supplies the abdominal mms and the skin of the inguinal and pubic regions (super-lateral buttock and medial femoral triangle)

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18
Q

genitofemoral

A

genital branch- supplies anterior scrotum or labia majora
femoral branch- supplies skin over lateral part of femoral triangle

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19
Q

lateral cutaneous nn of the thigh

A

supplies skin on the anterolateral surface of the thigh

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20
Q

anterior cutaneous branches

A

supplies skin of anterior and medial aspects of thigh

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21
Q

sacral plexus innervation

A

L4-S4

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22
Q

sciatic nn

A

L4-S3
hip joint
flexors of the knee in the thigh (hamstrings) & all mms in the leg and foot (through tibial and common fibular divisions)

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23
Q

pudendal nn

A

S2-S4
structures in perineum
sensation to external genitalia
perineal mms, external urethral sphincter and external anal sphincter

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24
Q

superior gluteal nn

A

L4 - S1
glutei med, glutei min, and TFL

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25
inferior gluteal nn
L5-S2 glutei max
26
saphenous nn innervation
skin of medial side of ankle and foot
27
tibial nn innervation
supplies posterior mm of leg and knee joint
28
common fibular (perineal) innervation
fib long & bravis supplies skin on distal third of anterior surface of leg and dorm of foot
29
deep fibular nn innervation
anterior mm of leg and dorm of foot supplies skin of 1st interdigital cleft and supplies all joints it crosses
30
superior clunial (superficial gluteal) nn
- L1-L3 - passes inferolaterally across iliac crest - supplies skin of superior buttocks as far as tubercle of iliac crest
31
middle clunial (superficial gluteal) nn
- posterior rami of S1-S3 - exits through posterior sacral foramina and pass laterally to gluteal region - supplies skin over sacrum and adjacent area of buttock
32
inferior clunial (superficial gluteal) nn
- originates from the post cutaneous nn of the thigh - emerges from inferior border of glutei max and ascends superficial to it - supplies skin of inferior half of buttock as far as greater trochanter
33
median nn passes through
two heads of pronator teres
34
musculocutaneous nn pierces
the coracobrachialis mm
35
radial nn is between the
medial and short heads of triceps
36
anterior rami is mainly _________ posterior rami is mainly _________
while they both have sensory and motor anterior is mainly motor, posterior is mainly sensory
37
posterior rami supplies what mm groups
- lumbar region, cluneal nns - to the synovial joints of the vertebral column, deep mm of the black (erector spice, interspinalis, transverse, sub occipital mms) and the overlying skin
38
facet joints are innervated by
the articular branches of the medial branches of the posterior rami
39
what parts of the skin does the posterior rami innervate
thoracic wall in innervated by posterior rami AND the lateral and anterior cutaneous branches of anterior rami to form DERMATOMES T2-T12
40
what two mm are not innervated by the cervical plexus
spinal accessory: traps & SCM
41
the general senses are visceral and somatic. what do they contain
- senses to both somatic and visceral senses somatic (of the body): tactile sensations; touch, pressure, vibrations, itch, tickle, thermal sensations, pain and proprioception visceral: provides information about the conditions within the internal organs (pressure, stretch, chemicals, nausea, hunger, temp)
42
selectivity
a given sensory receptor responds vigorously to one particular kind of stimulus
43
perception
the conscious awareness and interpretation of sensations
44
sensation
the conscious or subconscious awareness of changes in the external or internal enviroment
45
sensory modaility
each unique type of sensation (touch, px, vision, hearing) a given sensory neutron carries information for only one sensory modality
46
general senses
refer to both somatic and visceral senses
47
special senses
sensory modalities of smell, taste, vision, hearing, equilibrium
48
kinaesthesia
perception of body movement, know where limbs are located and moving without looking at them
49
exteroceptors
- external surface of the body - the sensations of hearing, vision, smell, taste, touch, pressure, vibration, temp and pain
50
interoceptors aka visceroceptors
- located in blood vessels, visceral organs, mm, and nervous system - monitors conditions in the internal environment
51
proprioceptors
- located in mm, tendon, joints and inner ear - information about body position, mm length and tension and the position and movement of joints
52
mechanoreceptors
sensitive to mechanical stimuli. deformation, stretching or bending of cells.
53
thermorecepors
change in temp
54
nociceptors
respond to painful stimulus
55
photoreceptors
detect light
56
chemoreceptors
detect chemicals in the mouth (taste), nose (smell) or body fluids
57
osmoreceptors
detects change in osmotic pressure
58
free nn endings
bare dendrites associated with pain, thermal, tickle, itch and some touch sensations
59
encapsulated nn endings
dendrites enclosed in connective tissue capsule for pressure, vibration, and some touch sensations
60
2 types of rapidly adapting touch receptors
corpuscles of touch (messier corpuscles) located in the dermal papillae of hairless skin hair root plexuses: rapidly adapting touch receptors for hairy skin
61
2 types of slowly adapting touch receptors
type I cutaneous mechanoreceptors (tactile/merkle discs); in the fingertips, hands, lips and external genitalia type II cutaneous mechanoreceptors (rufinni corpuscles) located deep in the dermis, and in ligaments and tendons
62
receptors that contribute to pressure
- corpuscles of touch (meissner corpuscles) - type I cutaneous mechanoreceptors (tactile/merkle) - lamellate (pacinian) corpuscles
63
a sustained sensation that is felt over a large area than touch, occurs with deformation of deeper tissue
pressure
64
receptors for vibration
- corpuscles of touch (meissner corpuscles) (lower frequency vibrations) - lamellate (paninian) corpuscles (higher frequency vibrations)
65
results from stimulation of free nn endings by certain chemicals
itch
66
free nn endings are though to mediate the ______ sensation
tickle
67
cold receptors are __________ __ receptors warm receptors are __________ __ receptors
cold: myelinated A warm: unmylinated C
68
what temp activates cold receptors
10-40C
69
what temp activates warm receptors
32-48C
70
what temps stimulate pain receptors
below 10C and above 48C
71
type of proprioceptor found in skeletal mm that monitors mm length and are involved in stretch reflexes
mm spindles
72
a type of proprioceptor found in the junction of a tendon and a mm, that protects mm and tendons from damage due to overstitching
GTO
73
joint kinaesthetic receptors
74
exists in and around joint capsule of synovial joints and they respond to pressure, acceleration and deceleration during movement and help protect against excessive strain
joint kinaesthetic receptors
75
where to find first order neutrons
conduct impulses from somatic receptors into the brainstem and spinal cord
76
where to find second order neutrons
conducts impulses from the brainstem and spinal cord to the thalamus
77
where to find third order neutrons
conduct impulses from the thalamus to the primary somatosensory area of the cortex on the same side

Neuro 2 (6 decks)

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