Vessel & Nerves Flashcards

0
Q

right and left internal iliac arteries

A
  • terminal branches of aorta
  • runs caudally w/in pelvic cavity
  • divide into 2 branches after the umbilical a.
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1
Q

Right & left external Iliac arteries

A
  • given off by aorta

- go laterally to supply pelvic limbs

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2
Q

terminal branches of aorta

A
  1. Left internal iliac a
  2. Right internal iliac a
  3. Median sacral a
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3
Q

median sacral a.

A

runs caudally, ventral to sacrum & eventually supplies the tail

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4
Q

umbilical a.

A
  • 1st branch of internal iliac a.
  • part of fetal vessels
  • may remain patent in adults to the apex of the bladder
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5
Q

2 branches internal iliac a. divides into…

A
  1. Caudal gluteal a.

2. Internal pudendal a.

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6
Q

Caudal Gluteal a.

A
  • larger of the 2 division of the internal iliac a.
  • its branches supply mm of rump
  • passes lateral to ischium to supply proximal parts of caudal thigh mm
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7
Q

internal pudendal a

A
  • ventral to caudal gluteal a.
  • runs caudally through pelvic cavity
  • supplies pelvic viscera & penis/clitoris
  • divides into several branches
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8
Q

prostatic a.

A
  • division of internal pudendal a in the male

- supplies prostate, ductus deferens, urethra, urinary bladder, & rectum

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9
Q

Vaginal a.

A
  • branch of internal pudendal a.

- supplies urinary bladder, urethra, uterus, vagina, & rectum

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10
Q

Uterine a.

A
  • comes from vaginal a
  • runs cranially in mesometrium
  • continuous with uterine branch of ovarian a.
  • must be ligated in ovariohysterectomy
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11
Q

pelvic nerves

A
  • met by hypogastric nn. caudally from caudal mesenteric plexus
  • carry parasympathetic fibers from sacral segments of spinal cord
  • supply sympathetic and parasympathetic fibers to pelvic viscera
  • form pelvic plexus w/ hypogastric nn.
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12
Q

deep femoral a

A
  • ONLY branch of external iliac a

- comes just before external iliac a leave abdominal cavity

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13
Q

caudal epigastric a

A
  • runs cranially on deep surface of rectus abdominus m
  • supplies rectus abdominus m
  • originates from deep femoral a.
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14
Q

external pudendal a

A
  • passes through superficial inguinal ring

- originates from deep femoral a

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15
Q

pudendoepigastric trunk

A

common trunk that both caudal epigastric a & external pudendal a may arise from

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16
Q

medial circumflex femoral a

A
  • what deep femoral a becomes after caudal epigastric a & external pudendal a. are given off
  • leaves pelvic cavity through vascular lacunae
  • supplies medial thigh mm
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17
Q

femoral a

A
  • when external iliac a leaves abdominal cavity

- main blood supply to hind limb

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18
Q

superficial circumflex iliac a

A

enters deep surface of sartorius m. from femoral a.

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19
Q

lateral circumflex femoral a.

A
  • runs b/n rectus femoris & vastus medialis mm.

- supplies quadriceps femoris, tensor fascia latae, & superfical & middle gluteal mm.

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20
Q

proximal caudal femoral a

A
  • crosses pectineus & adductor mm.
  • enters deep surface of gracilis m.
  • supplies pectineus, adductor, & gracilis mm
  • leaves femoral a. near its middle
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21
Q

saphenous a

A
  • comes from caudal surface of femoral a & runs distally on superficial surface of crus
  • accompanied by saphenous n. & medial saphenous v.
  • divides into cranial & caudal branches near stifle jt
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22
Q

saphenous n

A

originates from large femoral n.

-supplies cutaneous sensation to medial side of limb to the paw

23
Q

middle caudal femoral a.

A
  • comes from caudal aspect of femoral a.

- supplies distal portions of adductor & semimembranosus mm

24
distal caudal femoral a
- largest of caudal femoral aa. | - supplies biceps femoris, semitendinosus, semimembranosus, gastrocnemius, & digital flexor mm
25
lateral saphenous v
- large v. on lateral surface of crus - its cranial branches drain dorsal surface of paw - good site for venipuncture
26
popliteal a
- what femoral a becomes as it passes b/n medial & lateral heads of gastrocnemius m. - supplies stifle jt & gastrocnemius & poplieteus mm
27
cranial tibial a
- one part of the termination of the popliteal a. - passes through the interosseous space to craniolateral surface of tibia - primary blood supply of paw
28
Lumbosacral plexus
where pelvic limb's nerves come from
29
obturator n
- comes from caudomedial surface of mm ventral to vertebral column - runs caudodistally along medial surface of shaft of ilium - supplies adductor, pectineus, gracilis, & obturator mm. - can be damaged in dystocia in large animals
30
femoral n
- gives off saphenous n | - supplies all 4 heads of quadriceps femoris m
31
What happens if damage to femoral n. occurs?
- inability to extend stifle jt & thus bear weight | - if damage occurs b4 saphenous n given off, it will also cause loss of sensation on medial side of hindlimb
32
Cranial gluteal n
innervates middle and deep gluteal mm & tensor fascia latae
33
caudal gluteal n
innervates superficial gluteal m.
34
Sciatic n
- largest n. of pelvic limb | - innervates biceps femoris, semimebranosus, semitendinosus mm
35
Common peroneal n
- 1 terminating branch of the sciatic n - innervates craniolateral mm of crus (cranial tibial, long digital extensor, peroneus longus mm) - splits into superficial & deep nn which innervate dorsal surface of paw
36
Tibial n
- medial branch of sciatic n - innervates caudal mm of crus (gastrocnemius, superficial & deep digital flexor, and popliteus mm) - provides sensory info from plantar paw
37
Celiac a
- 1st unpaired a that leaves ventral surface of aorta | - has 3 branches
38
celiacomesenteric ganglion and plexus
- covers initial portion of celiac a. & root of mesentery | - autonomic nerve fibers from vagal trunks and sympathetic trunk enter it
39
3 branches of celiac a
1. splenic a 2. left gastric a 3. hepatic a
40
spelnic a
goes toward spleen w/ branches to spleen, stomach, & greater curvature of stomach
41
left gastric a
2nd branch of celiac a. | -runs toward lesser omentum near cardia
42
hepatic a
largest branch of celiac a. | -branches to liver & gall bladder, right side of greater & lesser curvatures, pancreas, & proximal duodenum
43
cranial mesenteric a
- immediately caudal to celiac a | - supplies duodenum, pancreas, jejunum, ileum, cecum & ascending/ transverse/cranial colons
44
phrenicoabdominal aa.
- leave either side of the aorta & pass laterally dorsal to adrenal glands - they divide
45
renal aa.
- next aortic branch after phrenicoabdominal aa - usually 1/kidney & enter at hilus of kidney - right one comes of cranial to the left one
46
renal vv
- leave hilus of kidney & enter caudal vena cava | - left renal vein receives blood from left testicular v
47
ovarian a
- leave aorta just caudal to renal aa. | - run through mesovarium to ovaries
48
uterine branch of ovarian aa.
-continuation of ovarian aa to uterus
49
testicular aa
- leave aorta caudal to renal aa. | - run caudoventrally in abdominal cavity w/in mesorchium & exit via deep inguinal ring
50
caudal mesenteric a
- smaller unpaired a. that leaves ventral surface of aorta near its end - runs in descending mesocolon to mesenteric border of descending colon
51
caudal mesenteric ganglion & plexus
-gets fibers from sympathetic trunk -surrounds caudal mesenteric a. -2 branches = hypogastric nn. also supplies sympathetic to descending colon
52
hypogastric nn
supply sympathetic fibers to pelvic viscera
53
deep circumflex iliac aa.
last branches of abdominal aorta | -supply skin & mm of caudal abdomen & cranial thigh
54
portal vein
- enters visceral surface of the liver | - carries blood from digestive system to liver for filtration