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KIN 260 - HUMAN ANATOMY > Nerves of the Upper & Lower Limbs > Flashcards

Nerves of the Upper & Lower Limbs Flashcards

1
Q

What does the posterior (dorsal) ramus do?

A
  • carry visceral motor, somatic motor, and sensory information to and from the skin and deep muscles of the back
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2
Q

What does the anterior ramus do?

A
  • supplies the lateral and ventral portions of the body wall, limbs, and perineum.
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3
Q

What does the rami communicantes do?

A
  • autonomic neurons
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4
Q

What is a plexus?

A
  • anterior rami of neighboring spinal nerves branch and inter-connect to form a complex network of nerves
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5
Q

Which anterior rami do not form plexuses?

A
  • anterior rami of the T2-T12 spinal nerves
  • they travel through the intercostal spaces and supply the skin of the anterolateral trunk (sensory) and intercostal muscles (motor)
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6
Q

What is the sensory distribution of the brachial plexus?

A
  • upper limb
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7
Q

What is the motor distribution of the brachial plexus?

A
  • upper limb
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8
Q

What is the sensory distribution of the lumbar plexus?

A
  • abdomen, genitals, lower limb
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9
Q

What is the motor distribution of the lumbar plexus?

A

-abdomen, lower limb

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10
Q

What is the sensory distribution of the sacral plexus?

A
  • genitals, lower limb
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11
Q

What is the motor distribution of the sacral plexus?

A
  • perineum, lower limb
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12
Q

What is the sensory distribution of the cervical plexus?

A
  • head, neck, upper chest
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13
Q

What is the motor distribution of the cervical plexus?

A
  • anterior neck, diaphragm
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14
Q

What is the sensory distribution of the coccygeal plexus?

A
  • coccygeal region
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15
Q

What is the motor distribution of the coccygeal plexus?

A
  • NONE
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16
Q

Why are the phrenic nerves important? (C3-C5)

A
  • innervate the diaphragm (respiration)
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17
Q

Which spinal nerves form the cervical plexus?

A
  • C1-C5 SPINAL NERVES
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18
Q

Where is the brachial plexus located?

A
  • passes over the first rib posterior to the clavicle and enters the upper limb
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19
Q

What spinal nerves form the brachial plexus?

A
  • C5-T1 SPINAL NERVES
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20
Q

What are some peripheral nerves of the brachial plexus?

A
  • axillary nerve
  • musculocutaneous nerve
  • radial nerve
  • median nerve
  • ulnar nerve
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21
Q

What are the sensory distributions of the axillary nerve?

A
  • skin of the upper lateral arm

- skin of the upper posterior arm

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22
Q

What are the motor distributions of the axillary nerve?

A
  • Deltoid

- Teres minor

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23
Q

What are the sensory distributions of the musculocutaneous nerve?

A
  • skin of the lateral forearm
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24
Q

What are the motor distributions of the musculocutaneous nerve?

A
  • anterior arm muscles
25
Q

What are the sensory distributions of the radial nerve?

A
  • skin of the lower lateral arm
  • skin of the lower posterior arm
  • skin of the posterior forearm
  • skin of the posterolateral hand
26
Q

What are the motor distributions of the radial nerve?

A
  • posterior arm muscles

- posterior forearm muscles

27
Q

Which compartment in the musculocutaneous nerve in?

A
  • the anterior arm compartment
28
Q

What compartment is the radial nerve in?

A
  • posterior arm and forearm
29
Q

What are the sensory distributions of the median nerve?

A
  • skin of the anterolateral hand
30
Q

What are the motor distributions of the median nerve?

A
  • anterior forearm muscles

- hand muscles

31
Q

What compartment in the median nerve found in?

A
  • the anterior compartment of the forearm
32
Q

What are the sensory distributions of the ulnar nerve?

A
  • skin of the medial hand
33
Q

What are the motor distributions of the ulnar nerve?

A
  • anterior forearm muscles

- hand muscles

34
Q

What compartment in the ulnar nerve in?

A
  • anterior forearm
35
Q

What spinal nerves form the lumbar plexus?

A
  • L1-L4 SPINAL NERVES
36
Q

Where is the lumbar plexus located?

A
  • travels around the deep surface of the abdominal wall with some branches
    passing into the lower limb deep to the inguinal ligament
37
Q

What are some peripheral nerves of the lumbar plexus?

A
  • femoral nerve

- obturator nerve

38
Q

What are the sensory distributions of the femoral nerve?

A
  • skin of the anterior thigh
  • skin of the medial thigh
  • skin of the medial leg and foot
39
Q

What are the motor distributions of the femoral nerve?

A
  • anterior thigh muscles
40
Q

Which compartment in the femoral nerve found in?

A
  • anterior thigh
41
Q

What are the sensory distributions of the obturator nerve?

A
  • skin of the medial thigh
42
Q

What are the motor distributions of the obturator nerve?

A
  • medial thigh muscles
43
Q

What compartment in the obturator nerve found in?

A
  • medial thigh
44
Q

Which spinal nerves form the sacral plexus?

A
  • L4-S4 SPINAL NERVES
45
Q

Where is the sacral plexus located?

A
  • travels through the pelvic cavity with some branches passing into the lower limb
    via the greater sciatic foramen or lesser sciatic foramen
46
Q

What are some branched of the sciatic nerve?

A
  • tibial nerve
  • superficial fibular nerve
  • deep fibular nerve
47
Q

Does the sciatic nerve have sensory distribution?

A
  • no ma’am
48
Q

What are the motor distributions of the sciatic nerve?

A
  • posterior thigh muscles
49
Q

Which compartment in the sciatic nerve found in?

A
  • posterior thigh
50
Q

What is sciatica?

A
  • pain/numbness/weakness in the lower limb due to an irritation of:
  • the spinal nerves that give rise to the sciatic nerve (L4-S3)
  • the sciatic nerve itself
51
Q

What are the sensory distributions of the tibial nerve?

A
  • skin of the plantar surface of the foot
52
Q

What are the motor distributions of the tibial nerve?

A
  • posterior leg muscles

- foot muscles

53
Q

What compartment in the tibial nerve found in?

A
  • posterior leg
54
Q

What are the motor distributions of the superficial fibular nerve nerve?

A
  • lateral leg muscles
55
Q

What are the sensory distributions of the superficial fibular nerve?

A
  • skin of the lower lateral leg

- skin of the dorsal surface of the foot

56
Q

What compartment is the superficial fibular nerve found in?

A
  • lateral leg
57
Q

What are the sensory distributions of the deep fibular nerve?

A
  • skin between the first and second toes
58
Q

What are the motor distributions of the deep fibular nerve nerve?

A
  • anterior leg muscles
59
Q

What compartment is the deep fibular nerve found in?

A
  • anterior leg

KIN 260 - HUMAN ANATOMY (21 decks)

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