Brainscape's Knowledge GenomeTM

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


See full index

Muscle Biology > lumbosacral plexus > Flashcards

lumbosacral plexus Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

5 major peripheral nerves of sacral plexus

A 
superior gluteal nerve
inferior gluteal nerve
sciatic nerve
posterior femoral cutaneous nerve
pudendal nerve
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

superior gluteal nerve originates from what nerve roots

A

L4, L5, S1

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

Superior gluteal nerve is responsible for the motor innervation of what muscles

A

gluteus minimus
gluteus medius
tensor fasciae latae

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

inferior gluteal nerve originates from what nerve roots

A

L5, S1, S2

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

Inferior gluteal nerve is responsible for the motor innervation of what muscles

A

gluteus maximus

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

sciatic nerve originates from what nerve roots

A

L4, L5, S1, S2, S3,

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

Divisions of the sciatic nerve

A

dorsal - fibular L4 - S2

ventral - tibial - L4 - S3

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

Tibial part of the sciatic nerve is responsible for the motor innervation of what muscles

A

all muscles of the posterior compartment of thigh except bicep femoris short head
adductor magnus
posterior compartment of lower leg
in sole foot

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

fibular part of the sciatic nerve is responsible for the motor innervation of what muscles

A

short head bicep femoris
anterior lateral compartments of leg
extensor digitorum brevis of foot

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

Tibial part of the sciatic nerve is responsible for the sensory innervation of what muscles

A

posterior lateral compartment of leg and sole of foot

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

fibular part of the sciatic nerve is responsible for the sensory innervation of what muscles

A

anterior lateral compartment of leg dorsal aspect of foot

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

posterior femoral nerve originates from what nerve roots

A

S1 -S3

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

posterior femoral nerve is responsible for the sensory innervation of what muscles

A

posterior compartment of leg and perineum

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

pudendal nerve originates from what nerve roots

A

S2-S4

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

pudendal nerve innervates

A

external urethral and anal sphincter
pelvic bone
skeletal muscles of perineum

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

causes of superior gluteal nerve damage

A

hip dislocation and hip fractures

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

symptoms of superior gluteal nerve damage

A

loss of motor function gluteus medius

weakened abduction

18
Q

causes of inferior gluteal nerve damage

A

complications caused by hip replacement
trauma
entrapment
compression

19
Q

symptoms of inferior gluteal nerve damage

A

weakened leg extension
weakness in gluteus maximus
muscle atrophy of gluteus maximus

20
Q

causes of sciatic nerve damage

A

inflammation
compression
bone spurs of lower back
herniated disk

21
Q

symptoms of sciatic nerve damage

A

pain in lower back, buttock and back of legs
pain worsens with movement
numbness

22
Q

causes of posterior femoral nerve damage

A

direct trauma
fractured pelvis
tumours

23
Q

symptoms of posterior femoral nerve damage

A

numbness or tingling of the leg
muscle weakness
muscle cramping
sharp, jabbing pain
difficulty walking or extending the knee due to muscle weakness
atrophy, or shrinking, of the thigh muscles

24
Q

branches of the lumbar plexus

A 
iliohypogastric 
ilioinguinal 
genitofemoral
lateral femoral cutaneous nerve
femoral nerve 
obturator nerve
25
Q

iliohypogastric nerve cutaneously innervates

A

skin over pubis

and lateral buttocks

26
Q

iliohypogastric nerve motorly innervates

A

internal obliques

transverse abdominis

27
Q

ilioinguinal nerve cutaneously innervates

A

skin on proximal and medial part of thigh

28
Q

ilioinguinal nerve motorly innervates

A

internal obliques

transverse abdominis

29
Q

nerve root of iliohypogastric nerve

A

L1 and T12

30
Q

nerve root of ilioinguinal nerve

A

L1

31
Q

Motor innervation from genitofemoral nerve to

A

cremasteric muscle

32
Q

sensory innervation from genitofemoral nerve to

A

kin of the anterior scrotum (in males) or the skin over mons pubis and labia majora (in females). The femoral branch innervates the skin on the upper anterior thigh.

33
Q

nerve root of genitofemoral nerve

A

L1, L2

34
Q

nerve root of lateral cutaneous nerve

A

L2, L3

35
Q

Sensory innervation from lateral cutaneous nerve to

A

anterior and lateral thigh down to the level of the knee.

36
Q

nerve root of obturator nerve

A

L2-L4

37
Q

Motor innervation from obturator nerve to

A

muscles of medial thigh

the obturator externus, adductor longus, adductor brevis, adductor magnus and gracilis.

38
Q

sensory innervation from obturator nerve to

A

skin over medial thigh

39
Q

nerve root of femoral nerve

A

L2-4

40
Q

Motor innervation from femoral nerve to

A

muscles of the anterior thigh – the illiacus, pectineus, sartorius and quadriceps femoris.

41
Q

sensory innervation from femoral nerve to

A

skin on the anterior thigh and the medial leg.

Muscle Biology (25 decks)

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