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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
What are the sensory distributions of the radial nerve?
- skin of the lower lateral arm - skin of the lower posterior arm - skin of the posterior forearm - skin of the posterolateral hand
26
What are the motor distributions of the radial nerve?
- posterior arm muscles | - posterior forearm muscles
27
Which compartment in the musculocutaneous nerve in?
- the anterior arm compartment
28
What compartment is the radial nerve in?
- posterior arm and forearm
29
What are the sensory distributions of the median nerve?
- skin of the anterolateral hand
30
What are the motor distributions of the median nerve?
- anterior forearm muscles | - hand muscles
31
What compartment in the median nerve found in?
- the anterior compartment of the forearm
32
What are the sensory distributions of the ulnar nerve?
- skin of the medial hand
33
What are the motor distributions of the ulnar nerve?
- anterior forearm muscles | - hand muscles
34
What compartment in the ulnar nerve in?
- anterior forearm
35
What spinal nerves form the lumbar plexus?
- L1-L4 SPINAL NERVES
36
Where is the lumbar plexus located?
- travels around the deep surface of the abdominal wall with some branches passing into the lower limb deep to the inguinal ligament
37
What are some peripheral nerves of the lumbar plexus?
- femoral nerve | - obturator nerve
38
What are the sensory distributions of the femoral nerve?
- skin of the anterior thigh - skin of the medial thigh - skin of the medial leg and foot
39
What are the motor distributions of the femoral nerve?
- anterior thigh muscles
40
Which compartment in the femoral nerve found in?
- anterior thigh
41
What are the sensory distributions of the obturator nerve?
- skin of the medial thigh
42
What are the motor distributions of the obturator nerve?
- medial thigh muscles
43
What compartment in the obturator nerve found in?
- medial thigh
44
Which spinal nerves form the sacral plexus?
- L4-S4 SPINAL NERVES
45
Where is the sacral plexus located?
- travels through the pelvic cavity with some branches passing into the lower limb via the greater sciatic foramen or lesser sciatic foramen
46
What are some branched of the sciatic nerve?
- tibial nerve - superficial fibular nerve - deep fibular nerve
47
Does the sciatic nerve have sensory distribution?
- no ma'am
48
What are the motor distributions of the sciatic nerve?
- posterior thigh muscles
49
Which compartment in the sciatic nerve found in?
- posterior thigh
50
What is sciatica?
- 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
What are the sensory distributions of the tibial nerve?
- skin of the plantar surface of the foot
52
What are the motor distributions of the tibial nerve?
- posterior leg muscles | - foot muscles
53
What compartment in the tibial nerve found in?
- posterior leg
54
What are the motor distributions of the superficial fibular nerve nerve?
- lateral leg muscles
55
What are the sensory distributions of the superficial fibular nerve?
- skin of the lower lateral leg | - skin of the dorsal surface of the foot
56
What compartment is the superficial fibular nerve found in?
- lateral leg
57
What are the sensory distributions of the deep fibular nerve?
- skin between the first and second toes
58
What are the motor distributions of the deep fibular nerve nerve?
- anterior leg muscles
59
What compartment is the deep fibular nerve found in?
- anterior leg

KIN 260 - HUMAN ANATOMY (21 decks)

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