Nerve Plexus Flashcards Preview

5240 Intro to Biomed > Nerve Plexus > Flashcards

Flashcards in Nerve Plexus Deck (25):
1

List the nerve plexuses.

1. Cervical
2. Brachial
3. Lumbar
4. Sacral

2

What spinal nerves are a part of the Lumbar Plexus? Inervates?

Spinal nerves L1-L4. Innervates lower limb.

3

List the lumbar plexus nerves.

Subcostal n. – T12
Iliohypogastric n. – L1
Ilioinguinal n. – L1
Lateral femoral cutaneous n. – L2, L3
Genitofemoral n. – L1, L2
Genital branch, cremaster
Femoral branch, sensory on thigh
Femoral n. – L2, L3, L4
Obturator n. – L2, L3, L4

4

What spinal nerves make up the Sacral Plexus? What specific nerve?

Spinal nerves L4-S4. Sciatic Nerve.

5

What spinal nerves make up the Brachial Plexus? Innervates?

C5-T1. Innervates pectoral girdle and upper limb.

6

What nerves make up the Roots of BP?

Dorsal Scapular, Long Thoracic.

7

Dorsal Scapualar n. contains what nerves and innervates what muscles?

C5. Levator Scapulae, Rhomboid major and minor.

8

Long Thoracic n contains what nerves and innervates what muscles?

C5, C6, C7. Serratus Anterior. SALT.

9

What nerves make up the Trunks of the BP?

Suprascapular, Subclavius.

10

Suprascapular n contains what nerves and innervates what?

C5, C6. Supraspinatus and Infraspinatus.

11

Subclavius n contains what nerves and innervates what?

C5, C6, Subclavius

12

What nerves make up the Cords of the BP?

Lateral Pecotral, Upper and Lower supscapular, Thoracodorsal, Medial Pectoral, Medial brachial cutaneous, Medial antebrachial cutaneous.

13

the lateral pectoral n contains what nerves and innervates what?

C5, C6, C7. Pectoralis Major.

14

The Upper Subscapular n contains what nerves and innervates what?

C5, C6. Supscapularis muscle.

15

The thoracodorsal subscapular n contains what nerves and innervates what?

C6, C7, C8. Latissimus Dorsi muscle.

16

The Lower Subscapular n contains what nerves and innervates what?

C5, C6. Teres Major Muscle.

17

The Medial Pectoral n contains what nerves and innervates what?

C8, T1. Pectoralis Major and Minor muscles.

18

Medial brachial cutaneous n contains what nerves and innervates what?

T1. Sensory in the front and medial skin of the arm.

19

Medial antebrachial cutaneous n contains what nerves and innervates what?

C8, T1. Sensory of the medial skin of forearm.

20

What are the branches of the Brachial Plexus?

Musculocutaneous, Axillary, Radial, Ulnar (MARMU).

21

The musculocutaneous Nerve contains what spinal nerves, Motor and sensory functions?

C5-C7.

Motor: Anterior Muscles of arm (biceps, brachiallis, corocobrachialis.

Sensory: Skin on lateral forearm.

22

The Median Nerve contains what spinal nerves, motor and sensory functions?

C6-T1.

Motor: Anterior muscles of the forarm. Half of hand (thumb to half of ring finger.

Sensory: Thumb, digits 2,3, half of 4.

23

Ulnar nerve contains what spinal nerves, motor and sensory functions?

C7-T1.

Motor: Half ring, pinkie, most of palm.

Sensory: half ring finger, pinkie.

24

Axillary Nerve contains what spinal nerves, motor and sensory functions?

C5-C6.

motor: Deltoid and teres minor.

Sensory: Skin on the side of the shoulder.

25

Radial nerve contains what spinal nerves, motor and sensory functions?

C5-T1.

Motor: Posterior (extensor) muscles of the triceps and forearm.

Sensory: Skin on posterior arm, forearm, and posterior digits 1,2,3, half of 4.