Brainscape's Knowledge GenomeTM

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


See full index

Anatomy Second Semester > Pelvic Nerves and Vessels > Flashcards

Pelvic Nerves and Vessels Flashcards

1
Q

What is the sacral plexus

A

A network of nerve fibres that supplies the skin and muscles of the pelvis and lower limb

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

Where is the sacral plexus located

A

The surface of the posterior pelvic wall, anterior to the piriformis muscle

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

What forms the plexus

A

The anterior rami of S1-4, it also has contribution form L4 and L5

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

What are the main branches of the sacral plexus

A

Superior gluteal, inferior gluteal, sciatic, posterior femoral cutaneous and pudendal

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

Nerve root of the superior gluteal

A

L4-S1

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

Superior gluteal nerve innervation

A

The gluteus minimus and medius

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

Nerve root of the inferior gluteal

A

L5-S2

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

Innervation of inferior gluteal

A

Gluteus maximus

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

Nerve roots of tibial portion of the sciatic nerve

A

L4-S3

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

innervation of the tibial portiotn of the sciatic nerve

A

Muscles of the posterior thigh and hamstring potion of adductor magnus

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

Indirect innervation of tibial portion of sciatic nerve

A

Muscles of the leg and foot

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

nerve roots of the fibular portion of the sciatic nerve

A

L4-S3

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

innervation of the fibular portion of the sciatic nerve

A

short head of biceps femoris, all muscles in anterior and lateral compartment of thigh and extensor digitorum brevis

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

What do the terminal branches of the fibular portion of the sciatic nerve innervate

A

Sensory information to the skin of the lateral leg. heel and both dorsal and plantar surfaces of the foot

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

nerve roots of the posterior femoral cutaneous nerve

A

S1-S3

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

Innervation of posterior femoral cutaneous nerve

A

Skin on the posterior surface of the thigh and leg and also the skin of the perineum

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

where do most nerves leave the pelvis through

A

The greater sciatic foramen

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

Smaller branches coming form the sacral plexus and their nerve roots

A 
nerve to piriformis (S1,S2)
nerve to obturator internus (L5, S1)
nerve to quadratus femoris
levator ani (S4, pudendal)
coccygeous (S4,S5)
19
Q

Nerve roots of the pudendal nerve

A

S2-S4

20
Q

Whta does the pudendal nerve innervate

A

The skeletal muscle in the perineum, the external urethral sphincter, the external anal sphincter, elevator ani, penis/clitoris and most of the skin of the perineum

21
Q

What does the pudendal nerve travel through to leave the pelvis

A

The greater sciatic notch

22
Q

What does nerve to obutrator internus innervate

A

Obturator internus and superior gemellus

23
Q

Where is the superior hypogastric plexus

A

At the bifurcation of the abdominal aorta

24
Q

functions of sympathetic innervation

A

Decreases moement ewithin the rectum, contracts internal anal and urethral sphincters and relaxes the detrusor muscle

25
Q

What does the sympathetic nervous system cause during ejaculation

A

The contraction of the vas deferens and seminal vesicles

26
Q

How is the uterus contracted/relaxed

A

through sympathetic innervation and hormonal control

27
Q

what effect does the sympathetic system have on arteries

A

it causes vasoconstriction

28
Q

What provides parasympathetic innervation

A

Pelvic splanchnic nerves (S2-S4)

29
Q

functions of parasympathetic innervation

A

Increases motility of the rectum and anal canal, relaxes the internal anal sphincter, and contracts the detrusor muscle and inhibits contraction of internal sphincter

30
Q

What effect does the parasympathetic innervation have on arteries

A

Vasodilation of arteries

31
Q

Which branch of the ANS causes erection

A

parasympathetic

32
Q

Where does the aorta divide

A

L4

33
Q

What does the bifurcation of the aorta give

A

common iliac arteries

34
Q

what does the common iliacs split into

A

the internal and external iliac branches

35
Q

What supplies blood to the pelvis

A

internal iliac

36
Q

divisions of the internal iliac

A

Anterior and posterior division

37
Q

branches of the anterior division of the internal iliac

A

Umbilical, obturator, inferior vesical, middle rectal, inferior gluteal and inferior pudendal

38
Q

what do the inferior vesical and middle rectal arteries supply in males

A

Prostate, seminal vesicles and ductus deferens

39
Q

where do the testicular arteries come from

A

L2 of the abdominal aorta

40
Q

What is the equivalent of the inferior vesical artery in females

A

uterine artery

41
Q

what does the uterine artery supply

A

uterus, ovaries and part of the bladder

42
Q

what artery is present in females but not in males

A

Vaginal artery

43
Q

What are the posterior division of the internal iliac

A

iliolumbar, lateral sacral and superior gluteal

Anatomy Second Semester (27 decks)

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