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A&P Lab > Lab 10 > Flashcards

Lab 10 Flashcards

1
Q

How many spinal nerves are there in each region

A

Cervical: 8
Thoracic: 12
Lumbar: 5
Sacral: 5
Coccygeal: 1

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2
Q

4 nerve plexus

A

Cervical, brachial, lumbar, sacral
Know how to label all the nerves in these plexi

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3
Q

How many pairs of spinal nerves are there

A

31

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4
Q

Significance of conus medullaris and cauda equina

A

Cauda equina causes severe pain, while conus medullaris is only mild to moderate pain

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5
Q

How far down vertebral column does spinal cord extend

A

Between first and second lumbar vertebrae

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6
Q

Ganglia

A

Collection of cell bodies

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7
Q

Dorsal root vs dorsal root ganglion

A

Ganglion are where the cell bodies of neurons are and the root is where the extensions/axons are.

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8
Q

Why is white matter on outside and gray on inside of spinal cord

A

Grey matter can respond to some stimuli from neurons without transmitting information to the brain

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9
Q

DAVE

A

Dorsal Afferent, Ventral Efferent

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10
Q

Lesser occipital

A

Ventral Rami: C2, C3
Serves skin on back and side of head&neck

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11
Q

Greater Auricular

A

C2, C3
Skin of ear and over parotid gland

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12
Q

Transverse cutaneous

A

C2, C3
Skin on front and side of neck

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13
Q

Supraclavicular (medial, intermediate, lateral)

A

C3, C4
Skin on shoulder and clavicular

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14
Q

Ansa Cervicalis (superior and inferior roots)

A

C1-C3
Infrahyoid muscles of neck

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15
Q

Segmental branches

A

C1-C5
Deep muscles of neck,

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16
Q

Phrenic

A

C3-C5
Diaphragm

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17
Q

Axillary

A

C5, C6
Skin of shoulder, Deltoid and teres minor

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18
Q

Musculocutaneous

A

C5-C7
Flexor muscles of anterior arm
skin on antereolateral forearm

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19
Q

Median

A

Medial cord: C8-T1
Lateral cord C5-C7
Flexor muscles of anterior forearm
lateral palm, fingers, lateral 2/3 of hand on ventral side and dorsum fingers 2&3

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20
Q

Ulnar

A

C8, T1
Flexor muscles of anterior forearm, most intrinsic muscles of hand, skin of medial third of hand

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21
Q

Radial

A

C5-C8, T1
Posterior muscles of arm and forearm, posterior and lateral skin of entire limb

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22
Q

Dorsal scapular

A

C5
Rhomboid and levator scapulae

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23
Q

Long throacic

A

C5-C7
Serratus anterior

24
Q

Suprascapular

A

C5, C6
Shoulder joint, supraspinatus and infraspinatus

25
Q

Subscapular

A

C5, C6
Teres major and subscapularis

26
Q

Pectoral (lateral and medial)

A

C5-T1
Pec major and minor

27
Q

Femoral

A

L2-L4
Anterior, medial thigh, leg, foot, hip and knee joint

28
Q

Obturator

A

L2-L4
Medial thigh, hip and knee joints

29
Q

Lateral femoral cutaneous

A

L2, L3
Lateral thigh, peritoneum

30
Q

Iliohypogastric

A

L1
Lower abdomen and hip, anterolateral abdominal wall

31
Q

Ilioinguinal

A

L1
External genitalia, medial thigh, inferior abdominal muscles

32
Q

Genitofemoral

A

L1, L2
Scrotum (males), labia majora (females), anterior thigh, middle inguinal

33
Q

Sciatic

A

2 nerves (tibial and common fibular)
L4-S3
Tibia, fibula, knee

34
Q

Tibial

A

L4-S3
Posterior surface of leg and sole of foot

35
Q

Common fibular

A

L4-S2
Anterior and lateral surface of leg, thigh, toe extensors

36
Q

Superior gluteal

A

L4-S1
Gluteus medius, minimus, tensor fascia lata

37
Q

Inferior gluteal

A

L5-S2
Gluteus Maximus

38
Q

Posterior femoral cutaneous

A

S1-S3
Butt, posterior thigh, popliteal, calf, heel

39
Q

Pudendal

A

S2-S4
Perineum, external anal sphincter

40
Q

Origin in CNS Sympathetic

A

Thoracic and lumbar regions of SC

41
Q

Origin in CNS Parasympathetic

A

Brain stem and sacral region of spinal cord

42
Q

Location of ganglia Sympathetic

A

Primarily in 2 chains next to spinal cord

43
Q

Location of ganglia parasymp

A

On or near target organ

44
Q

Axon length sympathet.

A

Short preganglionic, long postganglionic

45
Q

Axon length parasympath

A

Long preganglionic, short postganglionic

46
Q

Degree of branching Sympathet.

47
Q

Degree of branching parasypath

48
Q

Preganglionic neurotransmitter Sympathet.

A

Release ACh

49
Q

Preganglionic neurotransmitter parasympath

A

Release ACh

50
Q

Postganglionic neurotransmitter sympath.

A

NE, ACh, Epi

51
Q

Postganglionic neurotransmitter parasympath.

A

Release ACh

52
Q

Effects of the division sympath

A

General and widespread

53
Q

Effects of the division parasympath

A

Specific and local

54
Q

Advantage of sympathetic trunk for activation of sympathetic responses

A

The synapse in the sympathetic trunk can be at the same level, higher, lower, or laterally which allows for super highway of information flow up and down. It means it only takes a for commands for widespread effects.

55
Q

Know the sympathetic and parasympathetic effects on the designated organs

A

Activity 2b
Table, picture from class

A&P Lab (8 decks)

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