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Gross Anatomy: Unit Three. > Tuesday/Wednesday > Flashcards

Tuesday/Wednesday Flashcards

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0
Q

Diaphragmatic apertures

A

Helps allow things to pass

-IVC, esophagus, aorta

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1
Q

Diaphragm crura

A

Musculotendinous bundles that arise from anterior surfaces of the bodies of the superior 3 lumbar vertebrae

  • right crus
  • left crus

Both crura unite by median acute ligament

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2
Q

Aortic hiatus

A

Through the diaphragm

Aorta, thoracic duct, Azagos vein

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3
Q

Caval opening

A

Where the IVC flows

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4
Q

Esophageal hiatus

A

Esophagus and vagus nerve

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5
Q

Sterno costal triangle

A

Between the sternal and costal attachments of the diaphragm

Helps transmit lymph vessels from the liver

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6
Q

What innervates diaphragm?

A

Phrenic nerve c3-5

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7
Q

Psoas major superior attachment

A

Transverse processes of lumbar vertebra,

sides of the bodies t12-s1 and iv disc

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8
Q

Psoas major inferior attachment

A

Lesser trochanter of femur

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9
Q

Psoas major innervation and action

A

Lumbar plexus

Flexes thigh, flex vertebral column

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10
Q

Iliacus superior attachment

A

Superior 2 thirds of iliac fossa

Anterior sacro-iliac ligament

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11
Q

Iliacus inferior attachment

A

Lesser trochanter of femur

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12
Q

Iliacus innervation and action

A

Femoral nerve(l2-4)

Flexes thigh and stabilizes hip

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13
Q

Quadratus lumborum superior attachment

A

Inferior border of 12th rib

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14
Q

Quadrats lumborum inferior attachment

A

Ilio lumbar ligament

Internal lip of iliac crest

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15
Q

Quadratus ligament innervation and action

A

Anterior branch of t12 and l1-4

Extends and laterally flexes vertebral column

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16
Q

Nerves of the lumbar plexus

A 
Iliohypogastric 
Ilio inginal 
Lateral femoral cutaneous 
Femoral 
Genitofemoral 
Obturator 
Lumbosacral trunk
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17
Q

What is he lumbar plexus

A

Anterior rami of l1-4

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18
Q

Lumbosacral trunk

A

Goes in the pelvis to help form the sacral plexus with the anterior rami of s1-4

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19
Q

What nerve sits right in top of psoas major

A

Genitofemoral

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20
Q

Common iliac artery splits into what

A

External and internal iliac artery

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21
Q

What are the branches of external iliac artery?

A

Inferior epigastic

Deep iliac circumflex

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22
Q

Sacroiliac joint ligaments

A

Anterior sacro-iliac ligament
Posterior sacro-iliac ligament
Interosseous sacro-iliac ligament

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23
Q

Sacroiliac joint

A

Strong weight bearing
Anterior synovial plane with limit mobility
Between the sacrum and ilium

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24
Sacrotuberous and sacro spinous ligament
Allow onlys limited upward movement When you look into the pelvic outlet you will see sacrospinous ligament
25
Pubic symphysis
Secondary cartilaginous joint | Union of the two bodies of the pubic bones with a interpublic disc between
26
Pubic symphysis ligaments
Superior public ligament and inferior pubic ligament
27
Iliolumbar ligament
Part of the lumbosacral joint Unites the transverse processes of l5 to the ilia Looks like it lays on anterior sacroiliac ligament
28
Pelvic diaphragm
Bowl or funnel shaped pelvic form consists of levator ani and coccygeus muscles
29
Levator ani origin
Body of the pubis | Ischial spine
30
Levator ani insertion
Perineal body Coccyx Rectum Anal canal
31
Levator ani innervation and action
Nerve to levator ani Resists increases in intra-abdominal pressure
32
Coccygeus origin
Ischial spine
33
Coccygeus insertion
Inferior end of sacrum and coccyx
34
Coccygeus innervation and action
Branches of s4 and s5 Helps form pelvic diaphragm, flexes coccyx
35
Obturator internus origin
Pelvic surface of ilium and ischium, obturator membrane
36
Obturator internus insertion
Greater trochanter of femur
37
Obturator internus innervation and action
Nerve to obturator internus Laterally rotates hip joint, helps hold the head of the femur in the acetabulum
38
Piriforms origin
Pelvic surface of 2nd-4th sacral segments | Great sciatic notch
39
Pisiforms insertion
Great trochanter of femur
40
Pisiforms innervation and action
Anterior rami of s1 and s2 Laterally rotates hip joint, abducts hip joint
41
Lateral pelvic wall
Obturator internus
42
Posterior pelvic wall
Piriformis
43
What muscle forms a muscular bed for the sacral nerve network
Pisiformis
44
Anterio-inferior pelvic wall
Formed by the bodies and rami of the pubic bone and pubic symphysis Bears the weight of the urinary bladder
45
Sacral plexus
- (L4-5) s1-4 | - lumbosacral trunk joins
46
Branches of the sacral plexus
``` Sciatic nerve Pudendal nerve Superior gluteal nerve Inferior gluteal nerve Posterior femoral cutaneous ```
47
Sciatic nerve
L4-s3 Largest nerve Flexors of the knees and all the muscles in leg and foot
48
Pudendal nerve
- s2-s4 | - supplies skin and muscles of the lower pelvic including reproductive, urinary, and digestive tracts
49
Pelvic splanchic nerve
Supply the parasympathetic nerve supply to the organs below the left colic flexture line
50
What four main arteries enter the lesser pelvis in females
Internal iliac arteries Ovarian arteries Median sacral Superior rectal Males only have two main, because no ovarian arteries.
51
Branches of the internal iliac artery
-iliolumbar -lateral sacral -superior gluteal -inferior gluteal -internal puodendal -vesical branches -umbilicus (Then obturator coming from the lumbar plexus)
52
Ureters
Retro peritoneal | Carry urine to the Kidneys
53
Urinary bladder
- sub peritoneal organ - internal iliac artery - veins that drained this are names for what they drain
54
Who has a internal urethral sphincter
Males only
55
Seminal gland
Between the fundus of bladder and the rectum | Secrete a thick Fuild to help make up the semen
56
Anal triangle
Posterior to the line Contains the anal canal and the anus ( triangle is between the two Ischial tuberosity and the coccyx)
57
Urogenital triangle
Containing root of the scrotom and penis in males and the vulva in females Anterior to the line Closed by the perineal membrane (Between the two Ischial tuberosities and the pubic symphysis)
58
What is a branch of internal puodendal artery
Inferior rectal | Goes to the anal sphincter
59
Ischiorctal fossa boundaries
``` Lateral: ischium Inferior: obturator internus Medial: external anal sphincter Superior (or roof): levator ani Posterior: gluteus Maximus ```
60
Ischiorectal fossa importance
The fossae has fibrous band that are filled with fat that help suppor the anal canal But are quickly moved for expansion of the anal canal
61
Branches of the internal iliac artery
-iliolumbar -lateral sacral -superior gluteal -inferior gluteal -internal puodendal -vesical branches -umbilicus (Then obturator coming from the lumbar plexus)

Gross Anatomy: Unit Three. (8 decks)

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