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Pns > Spinal Thoracic Lumbar Sacral Coccygeal > Flashcards

Spinal Thoracic Lumbar Sacral Coccygeal Flashcards

0
Q

Posterior primary ramus projects? And divides into?

A

Posteriorward and medial, lateral branch

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1
Q

Thoracic spinal nerve roots split into mixed nerves?

A

Posterior, anterior primary ramus

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2
Q

The medial branches have motor and sensory function

A

True

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3
Q

Muscles supplied by the medial branch of the posterior primary ramus? Sensory?

A

Semispinalis( upper six), longissimus (lower six),

Sensory supply to skin paraspinally

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4
Q

The lateral branches increase in size from superior to inferior

A

True

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5
Q

The lateral branches supply motor and sensory to?

A

Longissimus, iliocostalis, levator costarum.

Sensory supply to skin near the costal angles

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6
Q

The anterior primary rami generally follows the course of the rib above the nerve

A

True

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7
Q

The anterior primary ramus of T1 will contribute to the what?

A

Brachial plexus a smaller branch will form the first intercostal nerve

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8
Q

The anterior primary rami of T2 and T1 (sometimes) contribute to the what nerve?

A

Intercostobrachial nerve.

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9
Q

Each intercostal nerve gives off a what branches?

A

Anterior lateral posterior branches which all supply overlying skin

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10
Q

Intercostal nerves terminate as what?

A

Anterior cutaneous branches which supply the skin close to the midline

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11
Q

As intercostal nerves course along their adjacent ribs, they give off muscular branches to supply?

A

Internal intercostals, external intercostals, serratus posterior, transverse thoracis, transverse abdominal, internal abdominal oblique, external abdominal oblique, rectus abdominus

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12
Q

The intercostal nerves will supply?

A

Adjacent blood vessels, bones, joints, ligaments

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13
Q

The largest of the thoracic nerves, follows course similar to intercostal nerves, contributes to lumbar plexus?

A

Subcostal (T 12)

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14
Q

The subcostal nerve supplies ?

A

Skin as inferior as the superior buttocks

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15
Q

Each thoracic nerve communicates with sympathetic trunk by way of?

A

White and gray rami communicans

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16
Q

The grey ramus is medial or lateral to the whit ramus?

A

Medial

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17
Q

Each lumbar nerve root divides into?

A

Anterior primary ramus and posterior primary ramus

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18
Q

The posterior primary rami of the lumbar nerves travels posteriorly and divides into?

A

Medial and lateral branches

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19
Q

The medial branches of the posterior rami supply?

A

Multifidi

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20
Q

The lateral branches of the posterior primary rami supply?

A

Erector spinae group. Which is iliocostalis, longissimus and semispinalis

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21
Q

Th anterior primary rami of the lumbar nerve root contribute to the?

A

Lumbar (L1-L4) and sacral (L4 and L5) plexuses

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22
Q

Sympathetic trunk : there are usually four lumbar sympathetic ganglia

A

True

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23
Q

There will be white rami communicans associated with what nerves?

A

L1 L2 L3 nerves

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24
Q

Gray rami communicans associated with each lumbar nerve

A

True. Carry postganglionic sympathetics

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25
Q

Lumbar plexus is formed by?

A

Anterior primary rami of L1-L3 and part of L4 also receive info from T12 by way of communication with L1 nerve

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26
Q

The muscular branches from the anterior rami supply?

A

Quadratus lumborum, psoas major and psoas minor

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27
Q

L1 will supply?

A

Quadratus lumborum and psoas minor

28
Q

L2 will supply?

A

Quadratus lumborum and both psoas muscles

29
Q

L3 and L4 will supply?

A

Quadratus lumborum and psoas major

30
Q

This nerve supplies T12 and L1?

A

Iliohypogastric nerve

31
Q

The iliohypogastric nerve travels anterior and inferior btw what?

A

Quadratus lumborum and the kidney

32
Q

As the iliohypogastric nerve travels through the transverse abdominal muscle and travels btw the internal abdominal obliqueit gives off what branch?

A

Lateral cutaneous branch

33
Q

The lateral cutaneous branch supplies?

A

Posterior lateral gluteal region

34
Q

The iliohypogastric nerve will continue as what branch that supplies the skin over the pubic region?

A

Anterior cutaneous branch

35
Q

The iliohypogastric nerve supplies what muscles?

A

Internal abdominal oblique and transverse abdominal

36
Q

This nerve contains fibers from T12 and L1?

A

Ilioingunal nerve

37
Q

Ilioinguinal nerve enters thru theninguinal canal leaves via?

A

Superficial inguinal ring and travels with the spermatic cord ( round ligament females)

38
Q

The ilioinguinal nerve supplies sensory info to?

A

Skin of the upper medial thigh, base of penis and the anterior scrotum in men. In females mons pubis and the labium majus

39
Q

The ilioinguinal nerve supplies what muscles?

A

Internal abdominal oblique, transverse abdominal

40
Q

This nerve contains fibers from L1 and L2?

A

Genitofemoral nerve

41
Q

The genitive moral nerve passes anterior ward through the psoas major and divides into two branches?

A

Genital and femoral

42
Q

The genital branch enters thru the inguinal canal and supplies sensory info to and motor?

A

Cremaster muscle and sensory to skin of the superior anterior scrotum in males and skin over mons pubis and labium manus in females

43
Q

Scratch medial ant thigh scrotum contracts?

A

Cremasteric reflex

44
Q

The femoral branch passes into the thigh posterior to the inguinal ligament and supplies?

A

Skin over upper anterior thigh

45
Q

Contains fibers from L2 and L3

A

Lateral cutaneous nerve of the thigh

46
Q

The lateral cutaneous is purely sensory and supplies?

A

Skin over the lateral thigh, superior to the knee

47
Q

The lateral cutaneous nerve leaves the abdominal cavity by passing under the inguinal ligament, travels anterior to the sartorial thru fascia Lara to reach the skin

A

True

48
Q

Largest branch of the lumbar plexus contains fibers from L2,L3, L4

A

Femoral

49
Q

The femoral nerve passes posterior to the psoas major and emerges lateral to the psoas and ant to iliacus. Passes posterior to inguinal ligament and enters femoral triangle just lateral to the femoral artery, runs inferior and medically thru adductor canal and into the leg medically to the knee

A

True

50
Q

The femoral nerve gives off branches only in?

A

Abdomen and femoral triangle

51
Q

Within the abdomen the femoral nerve gives off muscular branches to the?

A

Iliacus and pectineus also,fibers to the femoral artery

52
Q

Once beyond the inguinal ligament the nerve divides into?

A

Anterior and posterior divisions

53
Q

The anterior division of the femoral nerve gives rise to what nerves?

A

Intermediate cutaneous nerve of the thigh, medial cutaneous nerve of the thigh, nerve to the sartorius

54
Q

The intermediate cutaneous nerve of the thigh divides into two branches and supplies?

A

Skin over anterior thigh down to the knee and lateral branch will communicate with the femoral branch of the genitofemoral nerve

55
Q

The medial cutaneous nerve crosses the anterior to femoral artery and sends branches to supply?

A

Skin of the medial thigh, medial knee, knee across to the lateral side of the patella. Some branches supply skin of the medial leg through communications with the SAPHENOUS NERVE

56
Q

The posterior division of the femoral nerve gives rise to what branches?

A

Muscular that supplies the quadriceps and vascular that supplies the femoral artery and knee joint before going into the leg as the SAPHENOUS NERVE

57
Q

Muscular branches given of The femoral triangle supplies?

A

Sartorius, rectus femoris, vastus lateralis and medialis, vastus intermedialis

58
Q

The SAPHENOUS nerve goes thru the adductor canal crosses the femoral artery so the nerve lies medial to the artery as they emerge thru canal. This nerve supplies?

A

Ski over medial and anterior to the patella. In the leg this nerve travels with the great SAPHENOUS vein and supplies skin over medial leg and foot

59
Q

This nerve contains fibers from L2 L3 L4

A

Obturator nerve. L3 is major contributor, L2 minimal

60
Q

The obturator nerve travels medial to the psoas major, posterior to the common iliac and descends into pelvis traveling obturator inter us. Nerve then leaves the pelvis thru obturator foramen. After leaving the obturator foramen the nerve divides into what?

A

Anterior branch and posterior branches

61
Q

Anterior branch of the obturator nerve travels inferior passing anterior to obturator externus and adductor brevis and posterior to the pectineus and adductor longus. Some branches communicate with the femoral nerve and form what?

A

Subsartorial plexus which supplies skin on the medial thigh

62
Q

The termination of the anterior obturator branch supplies?

A

Femoral artery and send articular branches to the hip.

63
Q

The anterior branch of the obturator nerve sends muscular branches to?

A

Adductor longus, gracilis, pectineus, adductor brevis

64
Q

The anterior branch may send fibers that connect with?

A

Accessory obturator nerve

65
Q

The anterior branch of obturator nerve may send fibers to communicate with medial cutaneous of the thigh and SAPHENOUS nerve.

A

True the obturator nerve will contribute supple of the ski. On the upper medial side of the leg

66
Q

The posterior branch of the obturator travels thru the obturator externus, posterior to the adductor brevis and anterior to the adductor Magnus

A

True

67
Q

The posterior branch of the obturator nerve send muscular branches to?

A

Obturator externus and adductor Magnus, also adductor brevis not supplies by anterior branch

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